Our low enlargement foam is made specifically for window and door installations. It expands to fill voids that fibreglass batt insulation might not properly attain. In contrast to fibreglass, foam acts a vapour barrier that seals openings/gaps and lower leakage. Stuffed into gaps, compressed fibreglass insulation loses its insulating benefit. https://vinyl-windows-in-scarboro04382.daneblogger.com/31485386/indicators-on-triple-glass-energy-windows-in-scarborough-ontario-you-should-know