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PU Foam Insulation
Spray-applied polyurethane foam that seals cavities, fills gaps, and delivers strong thermal and air-tight performance.
Air-sealing insulation for tight building envelopes
IBS PU Foam fills irregular cavities, gaps, and penetrations to form a continuous thermal and air barrier with excellent insulation value.
Why installers choose it
- Rapid expansion fills voids and seals edges
- High R-value per inch for compact insulation layers
- Creates an effective vapor and air barrier
- Ideal for roof decks, voids, and concealed spaces
Common uses
Best used where a continuous seal is essential and where traditional board insulation cannot fit.
Roof cavities
Delivers continuous insulation and seal around rafters and slabs.
Pipe penetrations
Seals service penetrations and gaps to prevent air leaks.
Voids & perimeters
Fills irregular voids and perimeter joints with durable foam.
Benefits for buildings
Minimizes heat transfer through concealed cavities.
Stops air leakage around joints and penetrations.
Sprays into place without extensive cutting or fitting.
Installation notes
- Apply to clean, dry surfaces free of dust and debris
- Allow for controlled expansion and avoid overfill
- Trim cured foam flush for finishing or coverings
- Use protective coatings where foam is exposed
Frequently asked questions
Can foam be used in humid conditions?
Yes. The foam cures in place and forms a moisture-resistant seal once installed properly.
Does this foam require protection?
Exposed foam should be covered or coated to protect against UV and physical abrasion.
Is it suitable for exterior roofs?
Yes, when used with a protective top layer or roof finish system.