Our very low growth foam is made especially for window and door installations. It expands to fill voids that fibreglass batt insulation might not efficiently attain. Contrary to fibreglass, foam acts a vapour barrier that seals openings/gaps and reduce leakage. Stuffed into gaps, compressed fibreglass insulation loses its insulating worth. https://windowsforhomesinscarboro94793.dgbloggers.com/32500210/not-known-facts-about-front-entrance-doors-in-scarborough-ontario