Insulate vast hangar roofs and walls fast — spray foam seals huge spans and stops condensation dripping onto aircraft below.
Aircraft hangars enclose vast, open spans where huge volumes of air meet expansive cold steel roofs. As temperatures shift, condensation forms across the deck and drips onto aircraft, avionics and ground equipment below — a serious problem where moisture on airframes and electronics is unacceptable. Uninsulated hangars are also energy-hungry, with heated air escaping endlessly through a leaky, high-roof envelope.
Enverge closed-cell spray foam is sprayed across the hangar roof deck and steelwork, self-bonding as it cures into one continuous insulating, vapour-resistant blanket over the whole span. It lifts the deck above dew point so condensation can no longer form and rain down on aircraft, and seals the air leakage paths that make a building of this volume so costly to heat and control.
Operators get a dry, stable hangar that protects high-value aircraft and equipment from overhead moisture, plus a tighter, more efficient envelope that cuts heating demand. Because foam is sprayed fast across large areas, the programme stays short — important for keeping a working hangar moving — while delivering certified, long-life condensation protection across the entire roof.
Stops condensation forming on the deck and dripping onto airframes, avionics and ground equipment below.
Seamless spray application blankets huge hangar roofs continuously, with no joints across enormous open spans.
Raises the cold roof deck above dew point so moisture can no longer condense over the hangar floor.
High-output spraying covers large areas quickly, keeping a working hangar's downtime to a minimum.
Air-tight envelope curbs heated air escaping through the high roof, cutting the heating cost of vast volumes.
Nexseal LE carries a 25-year manufacturer-backed product warranty.
Closed-cell foam seals large-span roofs and walls fast, stopping condensation and insulating in one pass.
Enverge Nexseal LE closed-cell foam is spray-applied across the hangar roof deck and steelwork, self-bonding on cure into a continuous, low-permeability layer over very large spans. By holding the deck above dew point and sealing air paths, it controls condensation that would otherwise drip onto aircraft, while reinstating continuous insulation and air-tightness across the whole envelope.
Typical published values for Enverge Nexseal LE closed-cell foam. Full technical specification →
Closed-cell foam bonds chemically to profiled metal, box-profile and cement-fibre sheets, following every ridge and trough with no fixings, battens or framework. Because the foam carries its own integral vapour barrier, the cold underside that condensation forms on is removed in the same pass — a 15–25 mm coat is typically enough to stop drip, while 25–75 mm delivers a genuine thermal upgrade with U-values down to around 0.18 W/m²K in the right build-up.
Application progresses quickly across open spans, so live operations can usually keep running while zoned sections are sprayed. Where a fire-rated finish is specified, the foam is coated with DC315 intumescent to achieve Euroclass B-s2,d0, and every installation is handed over with full documentation and a 25-year manufacturer-backed product warranty.
Tell us about your hangars & building.
Free survey of your hangars & condensation check.
The right system for your hangars.
Approved applicators, minimal disruption.
Handover pack & 25-year warranty.
Closed-cell spray foam across a large warehouse-style venue roof.
Insulation for a temperature-critical manufacturing process.
Concrete spray foam eliminating cold-bridging and condensation.
Send us your building details and our technical team will specify the right system and a clear budget. No obligation.
Closed-cell foam insulates the hangar roof deck and keeps its surface above dew point, so warm internal air can no longer condense on the cold steel and drip down. That protects airframes, avionics and ground equipment from harmful overhead moisture.
Yes. Spray foam is applied as a seamless liquid that self-bonds and expands across the substrate, so it blankets vast hangar roofs continuously with no joints or panel lines — ideal for the enormous open spans typical of aircraft hangars.
High-output spray equipment covers large areas quickly, keeping the programme short. We plan works around hangar movements and protect the work zone, so a busy, operational hangar sees minimal downtime during application.
Yes. Hangars enclose huge air volumes that are expensive to heat. An air-tight, continuous foam envelope curbs heated air escaping through the high roof, reducing heating demand and making the internal climate easier to control.
Yes. Nexseal LE closed-cell foam carries a 25-year manufacturer-backed product warranty, giving hangar operators long-term assurance over a critical roof protecting high-value aircraft.
A 15–25 mm anti-condensation coat controls drip on most profiled metal roofs. Where thermal upgrade is the goal we typically apply 25–75 mm of closed-cell foam — the exact depth is specified after a free survey.
Enverge closed-cell foam achieves BS 476 Part 7 Class 1 uncoated, and Euroclass B-s2,d0 when finished with a DC315 intumescent coating. We specify the right build-up for your building's use.
Yes — application progresses across large areas each day in zoned sections, so production, storage and staff can usually continue working throughout.
Specialist commercial spray foam, installed UK-wide by the Duratite Group's spray foam specialists.
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