UKFR - ROOFING AND INSULATION SPECIALISTS
Order your flat roof insulation boards with confidence when you shop with UKFR. As both flat roofing and insulation specialists, you can be sure that our range of flat roof insulation is of the best quality with trusted brands including Rockwool, Recticel and Kingspan. Browse our selection for high performance flat roof insulation boards with excellent fire ratings.
Browse Flat Roof Insulation Boards Categories
Showing products per page
Get a Quote
Planning your next project and need cost assistance. We help projects of all sizes and offer money-saving alternatives and discounts for large orders. We strive to respond within 24 hours.
Shop a wide selection of high-performance flat roof insulation boards designed to secure your home from fluctuating temperature changes.
From reputable and trusted brands including Ecotherm, Recticel, Kingspan and Rockwool, you can find highly efficient thermal insulation solutions for your flat roof.
Browse our flat roof insulation boards and enjoy fast shipping from our UK branches.
Our range of insulation flat roof boards is designed to bring high thermal performance to any building with ease, saving you time and money in the process.
We supply market-leading brands including Ecotherm, Recticel, Kingspan and Rockwool - each suitable for a variety of applications:
If you're installing insulation for a pitched roof, check out our full range including Kingspan TP10,Kooltherm and Celotex PIR insulation boards. Alternatively, you can visit our full range of insulation materials including glass fibre and mineral wool insulation.
At UKFR Roofing & Insulation, we're a proud supplier of flat roofing insulation products, keeping customers across the country warm throughout the year.
With over 50 years of experience in the construction industry, we understand the importance of finding the right insulation. If you are unsure about what insulation you need for your flat roof, please feel free to get in touch with us and we'll be happy to help.
Flat roof insulation allows interiors of any home to feel warmer during the winter, and cooler during the summer. Hardrock and PIR work well as insulation for flat roofs and can be often found in modern constructions. This is due to them being rigid board with high quality thermal properties compared to older types of roof insulation, such as glass wool.
PIR stands for polyisocyanurate which is a type of rigid foam insulation that's used in building construction
For any flats or homes that are uninsulated, you should aim to insulate your flat roofs with insulation boards totalling around 150mm in thickness.
New government guidelines from 2021 that were updated in 2022 have stated that for flat roofs target U-value W/(m2-k) of 0.11 for new build dwellings, 0.15 for Extensions and 0.16 for refurbishments and 0.18 for other buildings that are not classed as dwellings.
Below is an example of how to understand how thick your flat roof insulation should be:
These calculations are based on a timber deck with Single Ply / EPDM Rubber Roofing.
For more information on U-Value Calculations, please click the following links for all associated brands
Check out the government guidelines here.
Yes, installing flat roof insulation boards should be done alongside a vapour barrier to prevent dampness, mould and rot from occurring.
Rockwool Hardrock is the most fire-resistant insulation, with a euro class rating of A2-s1,d0 (BS EN 13501-1) and fire resistance up to 120 minutes.