If you’re working on a construction project with a flat roof, it’s vital that you insulate the flat roof during the build. It is very difficult to retrofit flat roof insulation; typically, it is much more challenging and it creates more mess. When you insulate your flat roof at the start of the job, you’ll achieve a far better result. The insulation will be of a better quality, higher performance and aesthetic standard. To help make your project a bit more manageable, the team at Online Insulation has written a short guide that explores what you must know about insulating a flat roof. Read below to learn more, and if you want to speak with an insulation expert – then please call us on 01509 649065.

What is Flat Roof Insulation?

Flat roofs are defined as roofs which have a pitch below 10°; the way that you insulate these types of roofs is different to pitched roofs. Flat roof insulation is commonly utilised to optimise a building’s energy efficiency and reduce heat loss. If you would like your room to feel more comfortable and warm in the winter months, or cooler in the summer months, then you need to invest in flat roof insulation. There are two ways you can install flat roof insulation – warm flat roofing and cold flat roofing. Warm flat roofing involves placing the insulation material on top of the roof, whereas, cold flat roofing places insulation between the joists. If you want to reduce your energy usage and energy bills, then warm roof insulation is the best choice. Alternatively, cold flat roofing costs less to install and is great for outbuildings. 

How Long Does it Last?

When you install flat roof insulation, you can expect it to last somewhere between 25 and 40 years. At Online Insulation, we supply premium quality insulation that is robust, durable and long-lasting so you’ll get many years of use out of your solution.

Steps involved in insulating a Flat Roof

Insulating a flat roof is generally a straightforward process. First of all, you should lay 12mm of plywood or OSB board across timber joists as a base. Next, install a vapour control layer to lower the risk of condensation and moisture. Thirdly, you should place butyl tape over marks where the vapour control layer will be pierced. After this, you should lay the rigid insulation board to the specified thickness. Following this, you should install an extra layer of plywood or OSB board. When this has been installed, you should fix the deck together. Finally, you should install a waterproof membrane, which will finish the deck and protect from the weather elements. 

Looking to Source Quality Flat Roof Insulation?

Having learned a little bit about insulating a flat roof, if you are trying to find a supplier of flat roof insulation – then Online Insulation is the place to come. We are a reputable online insulation and dry lining supplier, providing first-class products at competitive prices. Our range of products includes high performance flat roof insulation solutions such as the Kingspan Thermaroof TR26. This is a leading foil faced insulation board designed for flat roof applications. It features a fibre-free rigid thermoset polyisocyanurate (PIR) core, and is ideal for flat roofs waterproofed with mechanically fixed single-ply waterproofing.We offer a number of different sizes of the Kingspan product, so whatever your requirements or needs, you will find a suitable solution that covers your specific domestic or commercial application. If you would like to explore our wide range of flat roof insulation boards – also including the Kingspan TR27, then go to the Online Insulation store today. You’ll see unbeatable prices that give you top value for money, as well as, free nationwide shipping on orders over £350 + VAT. Delivery is speedy and affordable, so you’ll get your roof insulation delivered quickly and at a minimal cost. If you have any questions you’d like to ask, or want to find out more details about our different flat roof insulation options, then please contact us today on 01509 649065. We can answer any queries you have, and provide you with additional information about our products. In the meantime, visit our online site to discover our wider collection of insulation products including acoustic insulation, floor insulation boards, loft insulation, cavity wall insulation and polystyrene insulation.