Spray Foam Insulation Retrofit Attic

In a non vented attic insulation is applied directly to the underside of the roof sheathing to insulate the entire attic from seasonal heat and or cold.

Spray foam insulation retrofit attic.

When injected into a wall cavity retrofit foam falls in its liquid form to the bottom of the cavity before it starts its expansion whereas traditional spray foam insulation expands and cures immediately. Additionally foam lok retrofit foam insulation reduces energy use in buildings beyond its stated r value because foam lok retrofit foam. Spray foam is installed between the roof rafters along the soffit areas and directly to all exterior surfaces such as gable walls dormers etc to produce an air tight building envelope. Retrofit foam is identical to our open cell spray foam except that the expansion reaction is slowed down.

The unvented attic space is considered the most effective and up to date building practice particularly by the spray foam industry. Nothing unusual about that. Unvented attics sometimes called sealed enclosed or encapsulated attics feature insulation on the underside of the roof decking rather than on the attic floor. Spray polyurethane foam insulation is commonly used in one of two ways to insulate your attic space.

With a move towards passive homes non vented attics are becoming the obvious choice for enhanced energy efficiency. A while back i wrote about the incompatibility of putting an atmospheric combustion furnace in a sealed attic. Moreover if you choose spray foam the material expands into the hard to get areas and fills in any holes and openings that cause drafts and water seepages. The good news is that some installers understand this problem and seek to address.

Earlier this year i got a question about a home that had spray foam insulation in the attic. Give us a call today at 763 241 2092 to schedule a retrofit insulation estimate. Vented attic and non vented attic.