What are commercial roofs made of? [ Infographic ]

Posted on 20 February 2023

Most commercial roofs are flat or low-sloping, unlike residential roofs which tend to be pitched. Flat roofs are not only easier to install and very affordable but they can often provide valuable space to store equipment. Since flat roofs do come with some downsides, including suffering harsh effects from the elements and requiring more maintenance, it’s important to ensure you choose the right material for your roof. If you’re wondering what are commercial roofs made of, read on.

What are commercial roofs made of

4 common materials for commercial roofs

Since a new roof is such a significant investment for most businesses, it makes sense to consider your options carefully before deciding which system to opt for. Consult with our experienced roofing specialists who will be able to offer you the expert advice that you need. Keep reading to discover the most common materials for commercial roofs in Grimsby.

Single-plyRoof Lead work in Grimsby

Single-ply is one of the most common materials for commercial roofs. A single-ply membrane roof consists of sheets of synthetic polymer which are made from either thermoplastics or synthetic rubber. Since we can reheat and remould thermoplastics, they are normally the most popular option for single-ply roofs. 

Not only are single-ply roofs incredibly durable, ensuring they will last long into the future, but they’re also eco-friendly when compared with other more traditional roofing materials. There are a few different types of single-ply membranes for commercial roofs. These include:

Polyvinyl Chloride (PVC)

Thermoplastic Olefin (TPO)

Ethylene Propylene Diene Terpolymer (EPDM)

Built-up felt

Also known as Reinforced Bituminous Membranes (RBM), built-up felt systems use felts that have very high tensile strengths. Even though they’re incredibly strong they’re also flexible, ensuring they can expand and contract. There are two different construction methods for installing built-up felt roofs – hot and cold. 

With the hot method, we use a gas torch to bond the felt to the surface. The cold method either attaches the felt mechanically, or bonds it using hot air and adhesives. Whilst both methods come with benefits, the hot method is usually the better option since it provides a more robust, longstanding solution. The cold method tends to be more common in lightweight projects or where the use of gas torches isn’t advisable.

Built-up felt roofing systems are not only quite impressive in regards to their durability but they’re also fairly inexpensive. Compared to other roofing membranes like PVC, asphalt and rubber, felt roofs tend to be much cheaper to install, maintain and repair should they become damaged.


When our customers ask us “What are commercial roofs made of?”, they rarely expect us to say metal. Metal roofs have become increasingly popular in recent years, especially for commercial buildings. Steel, zinc, aluminium and copper are common options. Not only are metal roofs incredibly hardwearing – withstanding harsh weather conditions including rain, ice and snow – but they also tend to be mildew, rot and fire resistant. Plus, we can install them on roofs with low pitches, unlike tiles and shingles. 

Metal roofs are a very eco-friendly option. As well as using recycled metals like steel, the roofs themselves are often recyclable. Metals tend to do a better job at preserving heat too, which means that heating your property will likely cost you less. At the same time, a metal roof can also help to keep a property cool in the hot summer months.

You might assume the downside of metal roofing is its appearance. You may be picturing corrugated metal sheets. However, whilst corrugated metal is still widely used, these days, metal roofing is modern and lightweight, with a large range of colours and profiles to choose from. Some look like traditional roofing tiles whilst still having the benefits of metal roofs. 

Facias in Louth

Liquid applied roofing

Liquid applied roofing refers to the process of applying a polyurethane liquid membrane as a roof coating to a new roof or existing roof. The aim is to make the roof waterproof and able to withstand the harshest effects of the elements. With an existing roof, it’s known as a “liquid overlay”. Liquid applied roofing is an extremely versatile solution since it can be applied to either flat, pitched or domed roofing systems, and on a wide range of different materials, including steel and asphalt.

One of the key benefits of liquid applied roofing is that it provides a totally seamless solution. Since we apply it as a continuous coat, there are no areas where water can get underneath. With systems such as single-ply, EPDM and bitumen felt, water can eventually penetrate the roofing and cause damage. Liquid applied roofing provides a long-term, watertight protective layer for your roof. 

Commercial roofs in Grimsby

Now you know the answer to the question “What are commercial roofs made of?”, you may be looking to hire a roofing company in your area. At Raven Roofing and Repairs, we specialise in the installation of commercial roofs in Grimsby, using a range of materials to meet our clients’ needs and budgets. Once we’ve installed your new roof, we’re on hand to carry out regular roof maintenance and repairs, ensuring that it stays looking and functioning its best long into the future. We’re on hand to deal with all your commercial roofing requirements. 

Contact us

If you’re looking for a leading installer of commercial roofs in Grimsby, look no further than Raven Roofing and Repairs. Call us on 01472 565 084 or 01507 640 072 to discuss your roofing needs with one of our friendly team. You can also get in touch by sending us a message via our website and we’ll get back to you as soon as we can. Whether you need more information about different roofing systems we offer or you’d like a quote, we can assist.

Customer Reviews Raven Roofing & Repairs LtdGreatRaven Roofing & Repairs Ltd4.2 Based on 38 reviews fromSee all reviews review us onmark appleby ★★★★★ Extremely Happy with Job!Chris, Quickly assessed the roof and gave options on what could be done.Once Date Agreed, delivered on time with a very professional looking job. Job was in Feb and Chris and Team went out of their way to get the job done even though weather was bad at end of week. They left Work area very clean. Highly reccomend them!Response from the ownerHi Mark! Thank you for the review and 5 stars. I'm glad to here you were satisfied with our services!The Raven Roofing Team Bev Barley ★★★★★ Thanks for doing a first class job would highly recommend Chris for a job well doneResponse from the ownerHi Bev! Thank you for the 5 stars and lovely review. We really appreciate it!The Raven Roofing Team Robert Meadows ★★★★★ Response from the ownerHi Robert, thank you for the 5 stars!The Raven Roofing Team Mike Downs ★★★★★ Fantastic, would recommend to anyone who needs roof work. Polite, helpful and super fast. Thanks so much.Response from the ownerHi Mike, thank you for taking the time to leave us a review. We really appreciate it.The Raven Roofing Team Lisa McMahon ★★★★★ Had a leak from my roof. Chris came out the same day althoughthe weather wasn't good. He surveyed the roof and found the problem immediately (a tile had slipped), took photo's before and after replacing the slipped tile. I asked how much I owed him - he said there was NO charge as it was a quick repair. What a lovely, kind, genuine guy! Would highly recommended him and his company.Response from the ownerHi Mrs McMahon! Thank you so much for your 5 stars and lovely review we really appreciate it.The Raven Roofing Team Roland Packer ★★★★★ We recently had the roof on our extension replaced by raven roofing. Chris and his young helper couldn't have been more helpful. Work done to a very high standard. Quote honoured to the penny. Genuinely nice people and a real pleasure to do business with. Will definitely call them for the services they offer, when needed.Response from the ownerHi Roland! I'm glad to hear you were happy with our services. I will pass your lovely comments on to the team!The Raven Roofing Team Michelle Packer ★★★★★ Can’t recommend this company enough. Did a great job on our roof , very friendly team , punctual, good quality work and good value for money . Many thanksResponse from the ownerHi Michelle! Thank you for the 5 stars. We're glad to hear your happy with the quality of our work! The Raven Roofing Team Carol Howden ★★★★★ Very friendly team and carried out a great job. Arrived and just got on with the job. Looks greatResponse from the ownerHi Carol, I'm glad to hear you was happy with our services! Thank you for the review.The Raven Roofing Team. andrew engeham ★★★★★ Competitive price and excellent workmanship.Highly recommended.Response from the ownerHi Andrew, thank you for the kind words and 5 star review. The Raven Roofing Team. Keith Brown ★★★★★ Great company great serviceResponse from the ownerHi Keith, thank you for the 5 stars! We really appreciate it.The Raven Roofing team. John Hornsby ★★★★★ Came on time very Satisfied with wat was done. Will be using them again if neededResponse from the ownerHi John!Thank you for the lovely review and 5 stars. The Raven Roofing Team Omer Khalifa ★★★★☆ Response from the ownerHi Omer, thank you for the 4 stars.The Raven Roofing & Repairs Team renegade jokerrr ★★★★★ Fantastic service! Nice and friendly guys! Very quick work! Great customer service! If I need any repairs in the future i will use Raven again.Response from the ownerHi Renegade,Thank you for taking the time to leave the nice comments.The Raven Roofing Team Margaret Dabb ★★★★★ After being let down by another firm i rang Chris in desperation. Within an hour he arrived, looked at work, discussed, priced and booked a date. Arrived on time, everything ran like clockwork even in the awful heat they had to work through. Very well organised, very tidy, would have no hesitation in recommending his work. Many thanksResponse from the ownerHi Margaret, thank you so much for the 5 stars and lovely review!The Raven Roofing Team Zoe Gibbons ★★★★★ Can’t recommend Chris and his team more, they were all friendly, polite and efficient and left my patio tidier than it was before! Nothing was too much trouble and good quality work and price. I’d definitely recommend Raven Roofing to all my friends and family.Response from the ownerHi Zoe, thankyou for the 5 stars and lovely review!The Raven Roofing Team Alan Grosschmidt ★★★★★ Would Recommend Raven Roofing.We had new gutters and facias fitted all round the house.We were really pleased with the completed job.I did point out a minor oversight, which Chris promptly dealt with.The quote for the job was very competitive and I doubt you could get it done cheaper.So deserves 5 Stars.Response from the ownerHi Alan thank you for taking the time to leave the nice comments..The Raven Roofing Team Andrea Goforth ★★★★★ Was very happy with the prompt, professional, and friendly service provided by this company . They were so quick to help me out and repair a badly storm damaged roof. It is such a joy to have a service provider come when they say they will! Reasonable price and good quality workmanship too . Thank you, Raven Roofing .Response from the ownerHi Andrea, thanks for the 5 stars and the comments we were happy to assist you.The Raven Roofing Team Mandy ★★★★★ We had the tiles down the gulley re-bedded.Very professional and cleaned up afterwards. Really friendly and very kind guy and we will definitely be using Raven Roofing again in the new year to do our guttering! Thanks Chris 👍🏻Response from the ownerWe would like to say thanks for taking the time for the comments Mandy. We also love the 5 stars!The Raven Roofing Team Mike Prior ★★★★☆ they repaired a dislodged tile free of charge. Just asked To be remembered for other works and telling my friendsResponse from the ownerHi Mike thanks for leaving the review and the stars we appreciate it.The Raven Roofing Team Sally Melton ★★★★★ Had a skylight fitted. Excellent service, fitted my job in even though extremely busy. Was absolutely delighted the attention to detail was perfect. Made sure everything was tidied up and taken away. Thank you again. Would highly recommend.Response from the ownerHi Sally, thanks for taking the time to leave the comments and the 5 stars. We are glad you love your new skylight.The Raven Roofing Team Ali Wickham ★★★★☆ Response from the ownerHi Alister thanks for taking the time to leave us 4 stars!The Raven Roofing Team Peter Hogarth ★★★★★ These guys did a great job repointing my roof gulleysResponse from the ownerHi Peter thanks for taking the time in writing us a review we really appreciate it.The Raven Roofing Team Pamela Blow ★★★★★ Response from the ownerHi Pamela thanks for the 5 stars!The Raven Roofing Team Samantha Blow ★★★★★ Excellent service, I would highly recommend :)Response from the ownerHi Samantha thank for your comments and the 5 stars, we always aim to offer a high level of service to all our customers. Also thanks for the recommendation!The Raven Roofing Team Derek Coates ★★★★★ Chris promptly repaired the front guttering which is now ok.Response from the ownerHi Derek thanks for the 5 stars and the nice comments.The Raven Roofing Team Lee Popham ★★★★★ Rang raven to come and fix my roof after last months storm, came next day and repaired, very happy with service and price, will definitely use again.Response from the ownerThanks Lee for the great review and glad we got to soon enough! We always aim to get to our emergency clients as soon as we can.The Raven roofing Team Mark Barnard ★★★★★ Very good reliable service all work guaranteedResponse from the ownerThanks for the review mark we are glad you are happy with our work!The Raven Roofing Team kevin langley ★★★★★ When we needed urgent roof repairs, Raven Roofing & Repairs came to the rescue. Great quality work undertaken by true professionals.Response from the ownerThanks for the 5 stars Kevin we always aim to get to our emergency calls as soon as we can.The Raven Roofing Team Steve Nowell ★★★★★ I recently had repairs done to my roof. The response and service were excellent, nothing was too much trouble and the work carried out effectively and efficientlyResponse from the ownerHi Steve we appreciate your comments and thank you for 5 stars we like these!The Raven Roofing Team Kelly Brewer ★★★★★ Excellent service, recently had repairs carried out on my house roof, Chris was really friendly, work carried out to a great standard at a great price 🙂Response from the ownerHi Kelly thanks for the comments we always strive to offer a great service and a high level of service.The Raven Roofing Team AerinB ★★★★★ We have used Raven Roofing several times for small repairs as we didn't want to go to the expense of a new roof, but recent torrential rain forced us to accept we needed a new roof. We were dreading the bill but Raven Roofing were very reasonable (not sure if I'm allowed to say how much).The scaffolding arrived and was put up promptly, Raven Roofing arriving a couple of days later to start work, the only delays were due to bad weather and Raven Roofing contacted us to let us know about any delays which we really liked, usually builders don't bother. Raven roofing were polite, friendly and courteous at all times.Out roof was completely stripped and replaced in a week, all rubbish was removed and the gardens left looking tidy.The roof itself looks fantastic...we are very very pleased and highly recommend Raven Roofing.js_loader