Our low growth foam is designed specifically for window and door installations. It expands to fill voids that fibreglass batt insulation may not correctly access. In contrast to fibreglass, foam functions a vapour barrier that seals openings/gaps and minimize leakage. Stuffed into gaps, compressed fibreglass insulation loses its insulating value. https://cruzerbjq.blogs-service.com/63049908/the-best-side-of-replacement-window-in-keswick-ontario