Other

Applying liquid to the roof of a commercial building or property may at first seem like a rather proposperous idea, but liquid applied roofing is fast becoming one of the most popular and cost effective roofing solutions on the market.

The development of coating technology over the last 50 years has improved the quality and performance of a wide range of liquid roof coatings that can be used to protect and cover many different types of industrial roofing systems.

Predominantly used to preserve flat roof systems, liquid waterproof coatings can also be applied to other commercial roof types if required, such as pitched or domed. In addition to this, the versatility of liquid applied roofing allows it to be used on a variety of different materials too.

Most liquid roofing systems are often applied with a number of different coatings to ensure optimal performance, but this will sometimes depend on the specific guidelines provided by each manufacturer. This process traditionally includes:

• Primer
• Base Coat
• Reinforcement Matting
• UV top coat

Essentially, most liquid applied roofing systems work in the same way once the roof has been coated by acting quickly and effectively to create a completely seamless membrane bond that helps to ensure your building is provided with a long-term watertight solution.

Liquid Applied Roofing Guarantees

As professional industrial roofing contractors, we ensure that all liquid roofing solutions are applied in accordance with the requirements and guidelines provided by each of our chosen manufacturers. This ultimately allows the majority of our manufacturers to offer long-term guarantees of up to 25 years.

Other liquid roofing manufacturers may guarantee their products against ‘water ponding’, even if a liquid membrane is being used to overlay an aged flat roof or a system that has limited drainage outlets for rainwater to escape.

What are the benefits of liquid roofing?

Aside from lengthy guarantees and their expected lifespan, there are many other benefits that liquid applied roofing can provide to businesses and their owners.

Although liquid coating materials may initially be seen to be more expensive than the more traditional felt and single-ply membrane roofing systems, this type of roofing system is actually said to be more cost-effective in the long run due to the low level of regular maintenance and repair that is required.

Furthermore, the expected lifespan and high-performing qualities of liquid applied roofing also helps to bring down the long-term costs for business owners. For example, liquid applied waterproof roofing systems are highly resistant to UV degradation and other harmful airborne pollutants.

Unlike felt or bitumen roofing membranes, liquid roofing is also safer and easier to install as there are no hot works involved which can obviously pose a huge fire risk to your building and its surroundings. In addition to this, this type of roof covering can also be applied in all weather conditions due to its rapid curing properties, which helps to ensure the disruption caused to your property or business operation is extremely limited.

The versatility of a liquid applied roofing solution is not just restricted to the type of surface or roofing style, but they can also used to cover balconies and walkways, to which integrations with anti-slip walkways to accommodate foot traffic can also be included.

Dual System Manufacturers

Depending on the size, scale and complexity of your industrial roofing system, a dual system manufacturer may be recommended to offer the greatest level of performance and protection. More specifically, a dual system involves the integration and application of both a mineral felt system as well as a liquid coating across the entire roof area with one guarantee being provided for all.

Liquid Applied Roofing: Howdens, Runcorn

For many years we have been fortunate to work alongside a number of the largest companies and institutions in the UK to undertake a full range of industrial roofing services, just take a look at our projects section for further information. We recently had the opportunity to work with Howdens, the country’s leading manufacturer and supplier of fitted kitchens and joinery products, who are based in Runcorn.

Here we installed a high-performing and high-quality liquid applied solution to over 11,000 square metres of roofing. This was then finished with a white covering as well as a black anti-slip walkway to allow for safe access to all parts of the roof.

Get in touch with our team of industrial and commercial roofing contractors today to find out more information about liquid applied roofing and the many other types of roofing services we currently provide.

Unfortunately, labelling your commercial roofing system as an out of sight, out of mind problem is only going to resort in more time, energy and resources being expended once an issue does occur. Not only do problems with your roofing system impact the condition of your building, but in some extreme cases they can disrupt production and even harm the welfare of your employees, customers and visitors. Before you know it, the cost to your business quickly spirals out of control as your reputation is left in tatters.

Yes, most commercial roofing systems are designed for long-term performance, but if you ask any industrial roofing contractor they’re likely to tell you that detailed roof maintenance that is undertaken at regular intervals throughout the year is always the best method of preventing such issues. Effective roof management will ensure that any problems are identified and eradicated before they can disrupt other parts of your business.

However, we know all too well that issues can still arise at any time, regardless of whether the roofing system has been carefully maintained or not. So, if problems do start to arise should you look to repair or replace your industrial roof?

Firstly, it’s important to understand that if your roof covering is currently affecting your production, leading to contamination of your product, leaking over electrics or resulting in injuries then the issue must be immediately referred to the relevant individual(s).

Contact a professional industrial roofing contractor

We then recommend that a professional industrial roofing contractor is then contacted about any concerns you may have. For example, here at NWIR we understand our client’s needs, especially in this current economic climate, and it’s also part of the reason why we’ll attend your site to perform an honest and comprehensive assessment of the current roofing system. In particular, we’ll assess and explain its structure, the specific concerns you’ve raised as well as investigate the supporting roof deck.

After completion we can then provide you with a full quotation that not only highlights which areas need to be considered, but we’ll also include details for short, medium and long-term options depending on the severity of the issues identified.

• Roof repairs – The problems which have been identified are minor and can be quickly, easily and safely repaired.
• Roofing overlay system – The current roofing system is structurally sound and the most effective method of resolving the issues that been raised is to install a new roof overlay system.
• Full Roof Strip & Renewal – If the roof survey raises severe concerns with the integrity of the current roofing system which are not thought to be repairable then a full roof replacement may be required.

With regards to resolving a damaged roofing system with a repair, it’s important to also understand all safe access requirements and whether any further issues may be encountered during the repairing process. As a result, roof repairs are not often thought to be the safest and most cost effective solution for resolving such issues.

Offering clients a roofing overlay system is sometimes seen as the safest and most cost effective solution. For example, if the current commercial roofing system is a flat roof, an asbestos cement roof or and aged metal cladded roof then this may be the ideal solution to the problems that have been encountered. Ultimately, a roofing overlay system can provide clients with longer-term guarantees, cost efficiency and limited disruption to the day-to-day operation of their business.

British Gas Call Centre Roof Refurbishment

After concerns were raised by staff at a British Gas call centre we provided a detailed and comprehensive assessment of their current roofing system which identified the need for a roof refurbishment. By limiting the amount of disruption being caused to the daily operation of the call centre, we successfully managed to strip away any wet areas of the aged felt roofing system before overlaying the entire roof area with a new insulated felt roofing system.

Do you require more advice and information about repairing or replacing your current commercial roofing system? If so, make sure you contact one of our professional and experienced industrial roofing contractors on: 0800 046 1500

Are you currently in the process of choosing an industrial roofing contractor to carry out work on your commercial roofing system? Well, it’s vitally important to select a contractor that is professional, reputable and fully capable of carrying out the works you wish to have completed, both on time and within budget.

While there is no real foolproof checklist to help you arrive at your decision, there are still a number of hugely important telltale signs to assist you along the way. These include:

• Understanding the level of insurance that the contractor holds
• Do they hold experience in the specific works you wish to have completed?
• Does the company sub-contract their labour or is it all undertaken by an in-house team?
• Have their commercial roofing contractors gained the relevant training and qualifications required?
• Is the industrial roofing company a member of the relevant trade associations and what other accreditations can they provide?
• Can they guarantee all works carried out?
• What client references can they provide for previous projects?

About NWIR

With decades of experience, NWIR are a National roof refurbishment contractor who successfully executes a wide range of small and large scale roofing projects to clients throughout the UK. We are also hugely proud to be members of the National Federation of Roofing Contractors (NFRC), to which all senior employees are fully accredited to the Institute of Roofing.

Not only are we one of the most accredited roofing contractors in the UK, we also employ over 50 fully qualified direct roofing operatives as part of our in-house labour team who successfully carry out all works to the highest possible standard.

Our Work

With our largest industrial pitched roof refurbishment to date being approximately 33,000 sq. metres and our most successful flat roof refurbishment being 11,000 sq. metres, we have been fortunate to work alongside some of the most recognised and reputable companies in the UK.

Our Insurance & Guarantees

In addition to our experience and accreditations, we are also able to provide our clients with the peace of mind they require with comprehensive insurance cover and installation guarantees. More specifically, we hold insurance cover of £10m for Employer, Public, Product and Pollution liability as well as PI cover for up to £5m.

In correspondence with our supply chain partners for a vast majority of the installations and industrial roofing services we undertake, we are able to provide an insurance backed guarantee for up to 25 years covering the materials and workmanship provided.

Still looking for that elusive industrial roofing contractor? Well, there’s no need to look any further as NWIR are highly experienced, fully accredited and capable of carrying out all works on time and within budget. So, make sure you get in touch with our head office today.

As one of the country’s leading industrial roofing contractors, we’re proud to announce that we’re currently exhibiting at The Facilities Show 2016 that’s being hosted at ExCel, London, between the 21st – 23rd June.

From advice about asbestos overcladding, installing commercial solar panels to undertaking professional roof surveys and diagnostics, over the next couple of days our professional and experienced team will be on hand to answer all your commercial roofing enquiries.

The Facilities Show is the largest facilities management expo to be held in the UK, with over 100 workshops and seminars taking place over the 3 day event, as well as around 300 suppliers from a wide range of different sectors showcasing their services and products. In addition to this, they’ll also be a number of celebrity guest speakers at the event including, James Cracknell OBE, Colonel Tim Collins OBE and Kate Adie OBE.

This year’s show is being held in association with the British Institute of Facilities Management (BIFM), together with support from strategical partners Mitie, Sodexo, RICS and other key contributors.

The Facilities Show is a fantastic opportunity to discover new and meet up with existing suppliers from the UK and further afield. You’ll also be able to discover all the latest innovations from your industry, as well as benefit from the knowledge and experience of other professionals in your sector.

We’ll be located on stand N1100, so if you’re heading to this year’s Facilities Show don’t forget to pop by and say hello!

A thorough and accurate regime of professional roof inspection basically pays for itself, as by spotting damage or problem areas early you can potentially save thousands of pounds. The price of a roof survey pales into comparison when considered against costly roof repairs and the associated fees you’ll shell out to deal with water and wind damage. But to make sure you get the most out of your roof survey it is important to know which kind of survey you need.

There are a range of different roof surveys available, and each has their own specific set of specialities and criteria. So, below you’ll find our comprehensive guide to the roof surveys offered by NWIR, enabling you to determine which type is right for you.

Visual Roof Survey

As the name suggests, a visual roof survey involves a physical examination of your roof by a human inspector. If your roof can be accessed safely then we are able to send up a qualified roof surveyor to photograph and inspect your termination details, rainwater gutters and all roof coverings in a more hands-on fashion than automated equipment offers.

Extended Camera Survey

If your roof is located at an average height but fragile roof coverings prevent a visual survey, then an extended camera survey can provide just as thorough an inspection. This simple process involves an inspector using long camera masts to photograph problem areas. This means that you can avoid the associated paperwork, scaffolding and disruption a more intrusive inspection requires.

MEWP Survey

The use of a Mobile Elevating Platform survey becomes necessary when commercial roofing systems are located at prohibitively high levels, which prevent safe human access via ladders or access hatches. Inspectors can gain access using a MEWP to access roofs up to 100m high and are then able to document and inspect the site as they would in a typical visual roof survey.

Drone Roof Inspection

For excessively high roofing systems or those which are unsafe for humans to traverse, the Drone Roof Inspection offers an efficient alternative to a human visual inspection. With no scaffolding, ladders or paperwork required, a drone can survey several locations in the time it takes a human to inspect just one area of roofing. The high-quality footage obtained of your roof can then be viewed by professionals to determine your roof’s condition.

Drone roof inspections can be ideal for older properties or those that reach considerable heights, as the drone can quickly scan the roof and locate the source of any issue. A drone survey is simple, straightforward and negates the need to spend valuable time erecting ladders, scaffolding or viewing platforms.

As another plus point, the entire roof survey can be recorded by the drone from start to finish, so that any footage can be thoroughly evaluated for complete peace of mind.

Core Sampling

When a roof is suspected of retaining moisture the most effective and least invasive method of identifying problem areas is to undertake a core sampling. Specialist cutting tools are used to extract small samples of your roof neatly and precisely, with the tested areas made watertight and sealed immediately post-test. This method enables us to fully identify where and why your roof is retaining moisture, and therefore provide a much more comprehensive solution to the problem at hand.

Thermal Roof Survey

This type of roof survey utilises infrared technology to accurately identify anomalies within the commercial or industrial roofing system. Any area of concern can be quickly highlighted, using this non-destructive roof diagnostic tool.

The technology allows for the fast detection and location of any wet roofing areas and can pinpoint any leaks with high accuracy and efficiency. This makes thermal roof surveys extremely beneficial for commercial and industrial roofs.

Thermal roof surveys can easily detect any potentially hazardous roof issue, which could become increasingly dangerous to the whole building down the line.

Electronic Leak Detection

Roof leak detection can sometimes be quite invasive, but with Electronic Leak Detection equipment we are able to swiftly locate the areas water has entered your roof using precision technology. A roof inspector can locate leaks in roofs and membranes using electronically charged bristles in an extremely swift manner, and without the use of flood testing or any other damaging and intrusive techniques. Problem areas are then marked using survey paint, enabling a comprehensive repair plan to begin.

Moisture Probe

Moisture probes are used after leaking areas or water retention has been detected in your roof. A small area of roofing is exposed, and a probe is inserted to test the amount of moisture in any given area. We employ this technique when we need to identify which specific areas of a roof have suffered damage, as it can be the case that only certain areas require repair as opposed to an entire roof replacement.

What is a roof moisture survey?

It can often be difficult to spot damage that has been sustained by moisture accumulating in your roof. This is because so much of the roofing system is not visible from the surface. As it’s out of sight, it’s also out of mind, and this is the reason why many property owners don’t realise they need a roof moisture survey until substantial damage has already been done.

A roof moisture survey will help to identify any issues that lie under the surface of your roof, for example a decaying roof deck or damp insulation.

Any damp in your roof must be addressed as a matter of urgency. Roof insulation is not only important to insulate your property, but also provides support for your roof. If it becomes damp, it will hold extra weight, putting immense strain onto the building frame and potentially causing major issues with your property’s structure further down the line.

It’s important to have a roof moisture survey done to reveal any damage before it’s too late. This will help to keep your family and tenants safe, in the case of residential properties (or equipment and employees in the case of commercial buildings).

Moisture Scanning

Moisture scanning, is used as an alternative moisture detection method when your roof sits atop a building which is rarely heated, contains sources of heat at roof level, or your roof surface comprises of chippings. In these situations, an infra-red thermal survey may not provide accurate results, so instead we employ a mobile non-destructive scanner to analyse your roof’s moisture levels and in turn provide you with the most relevant solution to your roofing trouble.

Asbestos Testing

Our professional PASMA trained commercial and industrial roofing specialists take careful samples of any asbestos from the roof. Then they transfer them in sealed containers to our certified testing partners.

Throughout the testing procedure, we will make sure that any suspected areas are made safe and weatherproofed, to ensure any contamination is avoided. Any potential risk to the wider public is limited by reducing the level of fibrous asbestos particles in the air.

Once the asbestos testing has been completed, and you’ve been notified of the results, our commercial and industrial roofing specialists will provide advice on how to resolve any highlighted problems. These can often be treated with effective asbestos overcladding.

What is a commercial roof survey?

A commercial roofing survey is carried out by professional roofing contractors and is used to determine the condition of your commercial roofing or industrial roofing system. It can identify any problems before they become much bigger issues, including:

• Ponding water – which can occur mainly on a flat roofing system. It’s a typical problem in areas that lack sufficient drainage, and that haven’t been maintained properly. These pools of water can collect on the surface of the roof and lead to costly damage.

• Water leaks or ingress – is when water is getting into your building, mainly due to defects in the roofing system. Moisture getting inside could result in a costly and time-consuming repair job if it’s left unchecked.

• Wear and tear – can occur on any type of roofing system over a period of time. This can be caused by damage from UV rays, rain, snow or even the wind. It’s best to get general wear and tear checked before it turns into more extensive damage.

• Membrane tears and rips – are most common in a flat roof that hasn’t been created with resilient and durable materials. This type of erosion can also occur due to poor roof design, and the incorrect application of adhesive or mechanical fixings.

• Points of failure – can occur on a roof at any time, whether from holes, rotten roof decks, or exposed insulation. A professional commercial roof survey will locate these issues so that they can be addressed quickly.

The benefits of getting a roof survey

So, getting a professional roof survey can help to identify any of the above issues and more, and this will bring you a number of benefits, including:

• Timely fixes – are always required to stop a small issue from turning into a much more expensive problem. And a roofing survey will offer you the timely solutions you need.

• Purchase decisions – will be easier to make after carrying out a roof survey. If you’re looking to purchase a new commercial property, any faults can be found quickly. Meaning you’ll be able to better negotiate the price to accommodate any potential repairs.

• Cost savings – are likely to result after getting a roof survey, as you’ll be made aware of any potential problems, and you’ll also be provided with solutions before further damage occurs.

• Decision making – overall will be a lot easier after a survey. For example, if you’re hoping to install a new roof, knowing the condition of your current roof should be a top priority, as this will influence any decisions you make.

Even if you’re unsure as to what kind of roof survey you need, it’s always a good idea to get your commercial roofing or industrial roofing system fully checked over.

At NWIR, we have decades of experience providing high-quality roof surveys and diagnostics. And our specially trained commercial roofing contractors can provide you with a free, transparent quote on any repairs you’ll need.

What kind of things will be highlighted in a roof survey?

A roof survey is perhaps the most important examination of a property following a full home-buyers survey. You can have these both done separately or as a complete service, that is completely up to you. Although, it is a wise move to do both separately so that you spread the cost and use a dedicated professional for each element. In this post we are going to highlight some of the things that will be highlighted in a professional roof survey.

Roof Covering

First and foremost, a roof survey will inspect your roof covering and check to see how old it is. From this, an expert will be able to predict your roof’s longevity and compare it to the condition of other similar properties. This part of the survey will also highlight any suspected leaks and potential repairs that need to be made. If your property has a flat roof then the survey will also check the decking for soft spots.

Roof Structure

Next up is the structure of the roof with both external and internal examination. Here, a professional roof surveyor will check for roof spread and roof sag, as well as any issues with condensation. Ventilation, wall plates, tie bars and internal lighting conditions are all features that will be inspected in a roof survey.

Gutters and Rainwater System

Your building’s rainwater system is extremely important to the overall health and safety of your property. A survey will assess which type of system is currently in place and advise of any better alternatives. You will also be made aware of any potential problems, damages, cracks or blockages. These can all lead to leaking joints and seepage elsewhere, so it is vital that you have this checked out. Leaks can cause serious structural damage if left unrepaired for a long period of time.

Tile Condition

A professional roof survey will also check the condition of your roof tiles and mortar. Roof tiles play a huge role in your rainwater system as they allow the flow of water into the gutters. Any cracks, breakages or missing tiles will cause water to leak into your building and leave the property exposed to the elements. Again, this can cause a lot of heartache and unnecessary costs later on down the line.

Windows and Skylights

If your property has a roof window or skylight then it is important that you have these checked too. A roof survey will examine the quality of the installation and check for signs of cracked glass or fogging. A skylight can be an extremely attractive feature, but only if it is installed and maintained properly. The only way to truly tell if your windows are up to scratch is to hire a roof surveyor.

Chimney Stacks

This is just as, if not more, important as checking your roof windows; because loose chimney stacks can fall and pose a huge risk to those in and around your building. A roof survey will check the condition of your brickwork and mortar, as well as identifying any loose chimney pots. The type and condition of the flashings are also taken into consideration.

Contact us today to arrange a roof survey

Hopefully after reading this extensive guide, you’ll have a good idea as to whether you require a roof survey, and what type of roof survey you’ll need. But this guide is just a brief overview, and there are many more technical aspects that are taken into consideration when it comes to a thorough roof examination.

If you’re still unsure what kind of roof survey you need, contact RCG today. Our friendly and knowledgeable experts can advise you as to the best course of action and provide you with more information on our professional roof surveying service. Call us on 0800 046 1500 or send us a message and we’ll get back to you shortly.

A thorough and accurate regime of professional roof inspection basically pays for itself, as by spotting damage or problem areas early you can potentially save thousands of pounds. The price of a roof survey pales into comparison when considered against costly roof repairs and the associated fees you’ll shell out to deal with water and wind damage. But to make sure you get the most out of your roof survey it is important to know which kind of survey you need.

There are a range of different roof surveys available, and each has their own specific set of specialities and criteria. So, below you’ll find our comprehensive guide to the roof surveys offered by NWIR, enabling you to determine which type is right for you.

Visual Roof Survey

As the name suggests, a visual roof survey involves a physical examination of your roof by a human inspector. If your roof can be accessed safely then we are able to send up a qualified roof surveyor to photograph and inspect your termination details, rainwater gutters and all roof coverings in a more hands-on fashion than automated equipment offers.

Extended Camera Survey

If your roof is located at an average height but fragile roof coverings prevent a visual survey, then an extended camera survey can provide just as thorough an inspection. This simple process involves an inspector using long camera masts to photograph problem areas. This means that you can avoid the associated paperwork, scaffolding and disruption a more intrusive inspection requires.

MEWP Survey

The use of a Mobile Elevating Platform survey becomes necessary when commercial roofing systems are located at prohibitively high levels, which prevent safe human access via ladders or access hatches. Inspectors can gain access using a MEWP to access roofs up to 100m high and are then able to document and inspect the site as they would in a typical visual roof survey.

Drone Roof Inspection

For excessively high roofing systems or those which are unsafe for humans to traverse, the Drone Roof Inspection offers an efficient alternative to a human visual inspection. With no scaffolding, ladders or paperwork required, a drone can survey several locations in the time it takes a human to inspect just one area of roofing. The high-quality footage obtained of your roof can then be viewed by professionals to determine your roof’s condition.

Drone roof inspections can be ideal for older properties or those that reach considerable heights, as the drone can quickly scan the roof and locate the source of any issue. A drone survey is simple, straightforward and negates the need to spend valuable time erecting ladders, scaffolding or viewing platforms.

As another plus point, the entire roof survey can be recorded by the drone from start to finish, so that any footage can be thoroughly evaluated for complete peace of mind.

Core Sampling

When a roof is suspected of retaining moisture the most effective and least invasive method of identifying problem areas is to undertake a core sampling. Specialist cutting tools are used to extract small samples of your roof neatly and precisely, with the tested areas made watertight and sealed immediately post-test. This method enables us to fully identify where and why your roof is retaining moisture, and therefore provide a much more comprehensive solution to the problem at hand.

Thermal Roof Survey

This type of roof survey utilises infrared technology to accurately identify anomalies within the commercial or industrial roofing system. Any area of concern can be quickly highlighted, using this non-destructive roof diagnostic tool.

The technology allows for the fast detection and location of any wet roofing areas and can pinpoint any leaks with high accuracy and efficiency. This makes thermal roof surveys extremely beneficial for commercial and industrial roofs.

Thermal roof surveys can easily detect any potentially hazardous roof issue, which could become increasingly dangerous to the whole building down the line.

Electronic Leak Detection

Roof leak detection can sometimes be quite invasive, but with Electronic Leak Detection equipment we are able to swiftly locate the areas water has entered your roof using precision technology. A roof inspector can locate leaks in roofs and membranes using electronically charged bristles in an extremely swift manner, and without the use of flood testing or any other damaging and intrusive techniques. Problem areas are then marked using survey paint, enabling a comprehensive repair plan to begin.

Moisture Probe

Moisture probes are used after leaking areas or water retention has been detected in your roof. A small area of roofing is exposed, and a probe is inserted to test the amount of moisture in any given area. We employ this technique when we need to identify which specific areas of a roof have suffered damage, as it can be the case that only certain areas require repair as opposed to an entire roof replacement.

What is a roof moisture survey?

It can often be difficult to spot damage that has been sustained by moisture accumulating in your roof. This is because so much of the roofing system is not visible from the surface. As it’s out of sight, it’s also out of mind, and this is the reason why many property owners don’t realise they need a roof moisture survey until substantial damage has already been done.

A roof moisture survey will help to identify any issues that lie under the surface of your roof, for example a decaying roof deck or damp insulation.

Any damp in your roof must be addressed as a matter of urgency. Roof insulation is not only important to insulate your property, but also provides support for your roof. If it becomes damp, it will hold extra weight, putting immense strain onto the building frame and potentially causing major issues with your property’s structure further down the line.

It’s important to have a roof moisture survey done to reveal any damage before it’s too late. This will help to keep your family and tenants safe, in the case of residential properties (or equipment and employees in the case of commercial buildings).

Moisture Scanning

Moisture scanning, is used as an alternative moisture detection method when your roof sits atop a building which is rarely heated, contains sources of heat at roof level, or your roof surface comprises of chippings. In these situations, an infra-red thermal survey may not provide accurate results, so instead we employ a mobile non-destructive scanner to analyse your roof’s moisture levels and in turn provide you with the most relevant solution to your roofing trouble.

Asbestos Testing

Our professional PASMA trained commercial and industrial roofing specialists take careful samples of any asbestos from the roof. Then they transfer them in sealed containers to our certified testing partners.

Throughout the testing procedure, we will make sure that any suspected areas are made safe and weatherproofed, to ensure any contamination is avoided. Any potential risk to the wider public is limited by reducing the level of fibrous asbestos particles in the air.

Once the asbestos testing has been completed, and you’ve been notified of the results, our commercial and industrial roofing specialists will provide advice on how to resolve any highlighted problems. These can often be treated with effective asbestos overcladding.

What is a commercial roof survey?

A commercial roofing survey is carried out by professional roofing contractors and is used to determine the condition of your commercial roofing or industrial roofing system. It can identify any problems before they become much bigger issues, including:

• Ponding water – which can occur mainly on a flat roofing system. It’s a typical problem in areas that lack sufficient drainage, and that haven’t been maintained properly. These pools of water can collect on the surface of the roof and lead to costly damage.

• Water leaks or ingress – is when water is getting into your building, mainly due to defects in the roofing system. Moisture getting inside could result in a costly and time-consuming repair job if it’s left unchecked.

• Wear and tear – can occur on any type of roofing system over a period of time. This can be caused by damage from UV rays, rain, snow or even the wind. It’s best to get general wear and tear checked before it turns into more extensive damage.

• Membrane tears and rips – are most common in a flat roof that hasn’t been created with resilient and durable materials. This type of erosion can also occur due to poor roof design, and the incorrect application of adhesive or mechanical fixings.

• Points of failure – can occur on a roof at any time, whether from holes, rotten roof decks, or exposed insulation. A professional commercial roof survey will locate these issues so that they can be addressed quickly.

The benefits of getting a roof survey

So, getting a professional roof survey can help to identify any of the above issues and more, and this will bring you a number of benefits, including:

• Timely fixes – are always required to stop a small issue from turning into a much more expensive problem. And a roofing survey will offer you the timely solutions you need.

• Purchase decisions – will be easier to make after carrying out a roof survey. If you’re looking to purchase a new commercial property, any faults can be found quickly. Meaning you’ll be able to better negotiate the price to accommodate any potential repairs.

• Cost savings – are likely to result after getting a roof survey, as you’ll be made aware of any potential problems, and you’ll also be provided with solutions before further damage occurs.

• Decision making – overall will be a lot easier after a survey. For example, if you’re hoping to install a new roof, knowing the condition of your current roof should be a top priority, as this will influence any decisions you make.

Even if you’re unsure as to what kind of roof survey you need, it’s always a good idea to get your commercial roofing or industrial roofing system fully checked over.

At NWIR, we have decades of experience providing high-quality roof surveys and diagnostics. And our specially trained commercial roofing contractors can provide you with a free, transparent quote on any repairs you’ll need.

What kind of things will be highlighted in a roof survey?

A roof survey is perhaps the most important examination of a property following a full home-buyers survey. You can have these both done separately or as a complete service, that is completely up to you. Although, it is a wise move to do both separately so that you spread the cost and use a dedicated professional for each element. In this post we are going to highlight some of the things that will be highlighted in a professional roof survey.

Roof Covering

First and foremost, a roof survey will inspect your roof covering and check to see how old it is. From this, an expert will be able to predict your roof’s longevity and compare it to the condition of other similar properties. This part of the survey will also highlight any suspected leaks and potential repairs that need to be made. If your property has a flat roof then the survey will also check the decking for soft spots.

Roof Structure

Next up is the structure of the roof with both external and internal examination. Here, a professional roof surveyor will check for roof spread and roof sag, as well as any issues with condensation. Ventilation, wall plates, tie bars and internal lighting conditions are all features that will be inspected in a roof survey.

Gutters and Rainwater System

Your building’s rainwater system is extremely important to the overall health and safety of your property. A survey will assess which type of system is currently in place and advise of any better alternatives. You will also be made aware of any potential problems, damages, cracks or blockages. These can all lead to leaking joints and seepage elsewhere, so it is vital that you have this checked out. Leaks can cause serious structural damage if left unrepaired for a long period of time.

Tile Condition

A professional roof survey will also check the condition of your roof tiles and mortar. Roof tiles play a huge role in your rainwater system as they allow the flow of water into the gutters. Any cracks, breakages or missing tiles will cause water to leak into your building and leave the property exposed to the elements. Again, this can cause a lot of heartache and unnecessary costs later on down the line.

Windows and Skylights

If your property has a roof window or skylight then it is important that you have these checked too. A roof survey will examine the quality of the installation and check for signs of cracked glass or fogging. A skylight can be an extremely attractive feature, but only if it is installed and maintained properly. The only way to truly tell if your windows are up to scratch is to hire a roof surveyor.

Chimney Stacks

This is just as, if not more, important as checking your roof windows; because loose chimney stacks can fall and pose a huge risk to those in and around your building. A roof survey will check the condition of your brickwork and mortar, as well as identifying any loose chimney pots. The type and condition of the flashings are also taken into consideration.

Contact us today to arrange a roof survey

Hopefully after reading this extensive guide, you’ll have a good idea as to whether you require a roof survey, and what type of roof survey you’ll need. But this guide is just a brief overview, and there are many more technical aspects that are taken into consideration when it comes to a thorough roof examination.

If you’re still unsure what kind of roof survey you need, contact RCG today. Our friendly and knowledgeable experts can advise you as to the best course of action and provide you with more information on our professional roof surveying service. Call us on 0800 046 1500 or send us a message and we’ll get back to you shortly.

When the owners of commercial properties are asked to name their number one priority when it comes to roofing, their first answer is inevitably insulation. A well-insulated roof provides a number of benefits, but your eye will be caught mostly by the purported savings on energy expenditure.

However, if your commercial roof system isn’t equally sufficiently ventilated, the costs of repairs and damage from excessive internal moisture will wipe out any potential energy savings.

In basic terms the presence of adequate commercial roof ventilation prevents damp. Condensation can build up very easily if warmer air from your property has nowhere to escape and colder air cannot get in, and when areas of moisture form on the interior surfaces of your roof you are in for a world of trouble.

One of the ways we diagnose the build-up of moisture in your roof is using a thermal roof survey or moisture scanning techniques.

Whereas many commercial property owners think that leaks are the only cause of moisture, the simple fact is that damp can just as easily come from a lack of industrial roof ventilation in your property. If you feel your property may be at risk from condensation and a lack of ventilation then it is important to know what to look out for.

The signs of condensation damage caused by poor ventilation include rotting woodwork, patches of damp and mould, damage to wallpaper or paintwork, and plaster erosion. You may also notice insulation materials have become degraded thanks to moisture exposure, and in some cases you may even suffer structural damage to your joists and fixtures.

One of the most effective ways of combating condensation and allowing air to move freely within your roof is the installation of industrial roof vents. This ventilation method is most commonly placed within your roof’s eaves and ridges, with the ridge vents allowing warm air to escape whilst the eaves draw in cooler air into your roofing system.

This balance ensures your roof’s internal temperature is similar to the outside temperature, and when used in conjunction with a properly insulated roof you should feel no difference to the internal temperature in the rest of your property.

Other systems used to increase your roof’s ventilation include breathable felt membranes placed underneath your tiles and slates, and tile vents which blend in with your roof’s appearance whilst maintaining the functionality of a traditional vent. There are many different approaches to take when it comes to ventilating your roof, and NWIR are of course happy to advise on which might be the most appropriate method for your commercial property.

The most effective way of retaining your commercial roof’s integrity is to maintain a regular routine of cleaning and inspecting. Spotting problems early and nipping them in the bud is proven to be far more financially astute than simply waiting for the inevitable to happen and shelling out a fortune on repair bills.

By observing a carefully considered commercial roof maintenance schedule, not only can you avoid the unnecessary costs associated with leaks and damage, you will also give your roof the best chance possible of extending its lifespan. But what exactly is “best practice” when it comes to cleaning and maintaining a commercial roof?

How often your roof needs a full cleaning depends on a variety of factors such as the size of its surface area, the materials used to construct it, and how exposed it is to various other elements.

Industrial roofing contractors will be able to give you an honest appraisal of your roof’s current condition and how often you should undergo the process, but commercial property owners can also judge for themselves by keeping an eye out for moss build-up, lichen, fungi and algae.

Allowing such materials to build up on roofing can cause leaks and discolouration, and when foliage starts to clog up your commercial guttering you can have some serious stability and drainage issues.

Tree branches and animal interference can also cause significant problems to your commercial roofing, so it is important that you and your staff know what to look out for when undertaking visual inspections. By seeing the cleaning process as an important part of your roof’s maintenance – rather than just an aesthetic issue – you will go a long way towards retaining your roof’s integrity.

When hiring a roofing contractor for a cleaning or inspection job it is also unwise to simply go for the cheapest provider, as not only might they lack experience but they may not be providing the exact service your roof requires.

Approximately 40% of all roof problems are caused by damage from humans repairing or poorly installing your roof’s components, so it is vitally important that you acquire the services of a team of experienced professional roof contractors rather than skimping on price.

Invest in other types of roof survey

Also by opting for more thorough inspections such as thermal roof surveying, electronic leak detection, or comprehensive drone surveys, you stand a better chance of identifying problems before they become exacerbated and cost far more than a simple survey.

The more modern roof inspection processes involving advanced technology do not only inspect your roof for current problem areas, they are also sophisticated enough to detect possible future trouble-spots, allowing you to remain one step ahead of the game and avoid any nasty surprises.

This aversion to increased costs should also be discarded when considering your roof replacement options. Whilst you may be able to put up with the unsightly appearance of a patched and repaired roof, can your business absorb the increased costs and disruptions to your business caused by constant repairs?

When a fully replaced roof system is unavoidable it is also wise to consider how easily maintained your new roof will be, and whether your commercial roof contractor offers any repair and restoration services for this particular type of roof.

When all is said and done those who maintain a regular state of vigilance over their commercial roofing systems save a significant amount of money compared to those who do not. A roof which is inspected professionally at least twice a year, cleaned at regular periods, and visually inspected by its owners will last on average 21 years – compared to 13 years for those who leave their roof’s integrity to chance.

You will also pay on average 18 pence per square foot in repair bills if you neglect to have your roof inspected often, with those undergoing regular maintenance paying only 10 pence. For a 10,000ft square roof this means you would save £6400 alone on maintenance costs over your roof’s lifetime, a figure which does not even take into account the additional savings made by not having to replace your roof 8 years early.

If you would like to discuss an appropriate cleaning and maintenance routine for your commercial roof, contact NWIR today on 0800 046 1500.

One of the biggest problems many roof drainage systems fail to accommodate is the unexpected build-up of large amounts of water. Without an adequate drainage system able to cope with occasional periods of heavy rainfall your roof can become waterlogged or even severely damaged within a very short period of time.

Traditional drainage systems tend to operate inefficiently during heavy rain, which is why at NWIR we recommend the installation of a syphonic drainage system.

Sadly in the early 1990s there were several scare stories regarding the efficacy of syphonic drainage systems, as a number of high-profile syphonic failures caused many to lose confidence in the technique. In reality, these failures were due to the poorly designed nature of those individual systems, and it was found that some installation companies were not following guidelines set out by the Siphonic Roof Drainage Association.

NWIR always adheres to every guideline with regards to syphonic roof drainage, and you can be certain that a system installed by us will protect your commercial property from severe flooding. But how exactly does syphonic drainage work?

What is Syphonic Drainage?

Despite what its name may suggest the process of syphonic drainage does not actually involve the syphoning of water at all. Instead, syphonic drainage technology employs the use of a gravity induced vacuum pump to remove water at high-velocity from multiple roof drains at once.

This pump requires no external power as it is activated by rainfall filling the drain beyond its anti-vortex plate, at which point air flow to the pipe is cut off. The vacuum created along with the natural gravitational flow means the water is drawn horizontally from your roofing system and pumped towards a single downpipe to a location of your choosing.

A syphonic drainage system is not only cheaper to construct than a typical roof drainage system – especially when a large industrial roof has to be covered – but the system’s design means there is no need for the pipe pitch or gradients found in typical roof drain piping.

The vacuum pump does all the work instead, and you also have the added benefit that the anti-vortex plates make it difficult for anything other than water to penetrate the system. This means you will rarely have to deal with clogged pipes unless a breakage has occurred, as the pipes themselves are essentially self-cleansing with little need for maintenance. However, it is still recommended that your system is checked over by a qualified roof maintenance technician at least three times a year.

Within the United Kingdom you will find most drainage systems of any type are installed in a fashion which allows them to deal with a 108mm/hr rate of rainfall, a rate which tends to occur at least several times a year on average. With all roof drainage systems in the UK based on a 2 minute storm time, a good system needs to evacuate this water fully within one minute to reduce the risk of flood.

Syphonic systems are the most efficient method of doing this, and whilst they can be applied to most industrial roofing designs you must always ensure that your system is installed by competent syphonic drainage contractors make sure your system runs properly.

Contact NWIR today using our contact form for a quote.

With any commercial investment it is important that business owners are able to see both demonstrable benefits and a concrete return on their outlay. When it comes to commercial roof replacement some advantages are obvious – your roof will be aesthetically more pleasing, a new roof should require less maintenance, and depending on the style of roof you opt for you may benefit from increased building efficiency in terms of your heating costs. But exactly how quantifiable are the benefits of roof replacement in terms of cold hard cash?

If you are considering selling your commercial property then installing a replacement roof could be a very lucrative move. According to commercial property agents the nearly half of your premises’ curb appeal comes from its roof, with some estimates claiming as much as 6% in value can be added to your sale price with the addition of a new roofing surface.

If the sale of your property is a likely step you should aim to investigate what prospective tenants expect of your roof, in order to avoid under or overspending on roofing styles which may not be financially beneficial.

The Benefits of Commercial Roof Replacement

Much of the purported additional value from a new commercial roof comes from the assumption that a newer surface will provide the new owner with financial benefits in the form of lower maintenance costs.

By replacing a roof with a modern, reliable surface you not only reduce future spending on roof repairs, but you also eliminate the costs associated with the damage a leaking roof can cause. Eliminating the risk of mold, rot and pests in your commercial property is certainly going to add value to it, especially if this protection can be demonstrated over a significant period of time.

Adding increased efficiency to your commercial premises is another easily quantifiable financial benefit of full roof replacement. By calculating your current heating costs and the projected amount saved by the use of a more insulating surface, you can directly predict when your outlay will bring about substantial returns.

If you add additional features such as solar panelling or green roof systems these figures can be boosted further, with equally measurable financial outcomes. With many new tenants considering a building’s green credentials before purchasing, the energy efficiency rating of your property could end up being worth thousands of pounds more than the costs required to achieve it.

Of course it is recommended that you should discuss your financial expectations with commercial roofing contractors before undertaking any work, but most roof replacement specialists are happy to advise on the most financially worthwhile strategy for both your roof and budget.

If you have any questions on which roofing style might increase the value of your commercial property the most, contact NWIR today for friendly, expert advice.

Whether you’re planning a new build or maintaining a current property, choosing the right material for the job is essential if you want something that’s going to last; and nowhere is this more important than in the construction of your commercial flat roof.

There are a range of options out there for flat roof materials, many of which are still surprisingly under-used by the roofing construction industry. Take a look at our list of the most common roofing material choices below, and weigh up carefully which might be the one for you.

Single Ply Bitumen Felt

Pros: A single ply layer of modified bitumen felt applied to your roof can last quite a long time due to its flexibility, which can absorb any substrate movement and changes in weather conditions. It is also environmentally friendly and its reflective nature makes it highly energy efficient. Bitumen roofing is easily repaired, albeit rather scruffy looking once fixed.

Cons: Some older installation methods can be quite dangerous and require the use of a blowtorch, so try to find a contractor who provides a more modern installation. The material is also prone to scuffing and tearing, so avoid using it if your roof sees heavy foot traffic.

Built Up Roof (BUR)

Pros: A built-up roof comprises of an aesthetically pleasing layer of gravel on the top coat, and several insulating layers beneath it. This is a cheap option and therefore unsurprisingly it is very commonly used.

Cons: The weightiness of a BUR requires joists in the existing roof to be reinforced in order to cope with the excess load. This extra cost needs to be factored in to the overall savings against other roof types, as does the extra installation time required.

Single Ply EPDM

Pros: This single ply membrane is a durable roofing material, with some contractors offering 50 year guarantees on its lifespan. Easily repaired, but like bitumen it will look scruffy once patched. If expansion and contraction is an issue for your roof due to temperature, EPDM is definitely the choice for you.

Cons: Seams in an EPDM roof are adhesive fixed, and therefore susceptible to splitting. This makes for a maintenance intensive roof over the long term. They are also not particularly pleasing to look at, especially if it has been poorly fitted. The perceived simplicity of EPDM installation leads to quite a few botch jobs.

Single Ply PVC

Pros: Very durable and reflective, which leads to lower energy costs, sometimes by as much as 25-50 percent. Very easy to install, a PVC single ply roof resists water pooling due to its non-permeable nature. Its recyclable nature also adds to your building’s green credentials.

Cons: Much like EPDM the main flaw in PVC roofing relates to its installation method. The material is applied in rolls, which means that the roof is susceptible to damage at the seams. With proper attention these areas can be made waterproof, but it will never be as easily maintained as a seamless roof system.

Liquid / Spray Roofing

Pros: Spray or liquid applied roofing uses a silicone coating to coat your roof entirely, obliterating the seaming problems from most single ply installations. This style of roof is resistant to water pooling, highly reflective, and sustainable. This leads to lower energy costs, fewer maintenance issues, and an environmentally friendly roof repair method.

Cons: The best things in life are never cheap, and liquid or spray applied roofing is expensive. They can be one of the most costly roof covering methods to initially install, but of course this should looked at in context with the constant repairs required of seamed styles, and of course the reduction in energy expenditure.

Regardless of your budget, environment or building demands, there are many commercial flat roof materials for you to select from. For further information about the types of flat roof material that are available, don’t hesitate to contact us and book your FREE site survey today.