Roofing Insulation FAQ


Roofing insulation is vital to overall comfort and impact your energy spending. Knowing the wrong type of insulation or improper installation or replacement will cost you dearly, we strongly advise you do your homework and research thoroughly before investing. Below are some commonly asked questions regarding attic insulation. If you don’t see your questions listed here, feel free to contact us by phone or email at G &R Roofing.

Q: I live in a flood zone area, what’s the best choice for attic insulation?

Closed-cell SPF is listed as a Class 5 Flood Damage-Resistant Material per FEMA. It’s “highly resistant to floodwater damage, including damage caused by moving water. These materials can survive wetting and drying and may be successfully cleaned after a flood to render them free of most harmful pollutants.”

Q: Can spray foam insulation be installed D-I-Y?

No, the equipment that is required for spray foam insulation cannot be rented, nor is it advised to attempt this installation yourself. It takes extensive training and knowledge that only certified technicians possess.

Q: How does spray foam work?

It’s a two-part mixture that is installed appropriately by trained professionals. The mixture expands quickly to fill all cracks and voids, completely and permanently adhering to wood, masonry, concrete, metal, and most other construction materials.

Q: Why do I need insulation in the first place?

Insulation is vital in any home or building by resisting the flow of heat. Heat is drawn to cooler environments, so it flows out in the winter and inward during summer. The role of insulation is that it slows the heat flow for your ac system to function efficiently. Insulation equals more overall comfort. Insulation also means the most cost-savings possible on your bills.

Q: Can I put new insulation on top of my current insulation?

Yes, but not if the current insulation is wet or shows signs of having been wet before. Wet insulation leads to mold, rotting, and health risks for all inhabitants. If you need your attic insulation removed, contact us and we can remove the old insulation and install your new insulation.