Our reduced growth foam is intended especially for window and door installations. It expands to fill voids that fibreglass batt insulation might not correctly get to. Compared with fibreglass, foam acts a vapour barrier that seals openings/gaps and reduce leakage. Stuffed into gaps, compressed fibreglass insulation loses its insulating worth. https://doorcompaniesinkeswickont90098.daneblogger.com/31363222/a-review-of-doors-supplier-in-keswick-ontario