Homeowners often ask if a vapor barrier is necessary for optimizing attic insulation and protecting their homes from moisture-related damage. The answer, however, isn’t one-size-fits-all.

This guarantees that the new blown-in attic insulation performs effectively and doesn't trap moisture or odors.

A well-insulated attic does a lot to prevent energy loss ... a lifespan of 20–30 years but can degrade faster if exposed to moisture, pest or animal infestation, or extreme settling.

Reviews and recommendations are unbiased and products are independently selected. Postmedia may earn an affiliate commission from purchases made through links on this page. Attic rain occurs when ...

moisture issues, or signs of pest infestations, which can degrade the material and create health issues. Inadequate Thickness: If you can see the floor joists of your attic space through the ...