What is Open Cell Spray Foam?
Open cell spray foam is a soft, spongy insulation material that expands significantly during application. It's characterized by its low density (around 0.5 lb/ft³) and allows air and moisture to pass through its structure.
Quick Identification
- • Soft and spongy to touch (like a kitchen sponge)
- • Light yellow or cream colored
- • Can be compressed easily
- • Less expensive than closed cell (£20-30/m² installed)
Why Open Cell Foam Causes Issues
Moisture Concerns
Open cell foam is breathable, allowing moisture to pass through. This can lead to condensation issues and timber rot if not properly ventilated.
Mortgage Rejection
85% of UK lenders now require removal or specialist surveys before approving mortgages on properties with spray foam in the loft.
Hidden Timber Defects
Once applied, it completely covers roof timbers, making it impossible to inspect for rot, woodworm, or structural issues without removal.
Difficult Removal
Despite being softer than closed cell, proper removal still requires specialist equipment and expertise to avoid timber damage.
Open Cell Removal Costs
*Prices vary based on loft size, access, and foam thickness
Open Cell Removal Process
Free Survey
We assess your loft and confirm foam type
Careful Scraping
Foam is manually scraped from timbers to avoid damage
Timber Inspection
Full structural inspection once foam is removed
Waste Removal
All foam waste disposed of responsibly
Certificate Issued
Lender-approved removal certificate provided
Get Your Open Cell Foam Removed
Free quote within 2 hours. Lender-approved removal certificates.