Specialist flat roof insulation for commercial, industrial and agricultural buildings in Durham and across Yorkshire & the North East — installed by ThermoFoam, part of the Duratite Group.
Flat roofs on Durham's commercial buildings are high-risk: interstitial condensation, deck rot and patchwork board insulation full of gaps. Sprayed from below, closed-cell foam forms one continuous layer that follows every upstand, penetration and detail — the gaps board systems always leave are simply never created.
Condensation risk is assessed against BS 5250:2021 before installation, and the system is chosen to suit the build-up: Nexseal LE closed-cell (λ 0.027 W/m·K) with its integral vapour barrier, or Sucraseal open-cell (λ 0.039) where breathability is required. Full documentation and a 25-year manufacturer warranty at handover.
Typical published values for Enverge closed-cell systems. Full flat roof insulation service page →
Send us your building details and our technical team will specify the right system and a clear budget. No obligation.
Not every one — that's why condensation risk is assessed against BS 5250:2021 first, and the system specified to suit the specific build-up.
Usually no — application is from below, to the underside of the deck, without stripping the covering.
Yes — Durham and the surrounding area, as part of ThermoFoam's UK-wide operation. Free surveys, written specifications.
All of Yorkshire & the North East and the surrounding towns and villages — ThermoFoam installs UK-wide as part of the Duratite Group. See our Durham area page or call 01208 832 602.
