Baffles In Attic With Expanding Foam

Putting baffles in your attic is a crucial step in installing attic insulation.

Baffles in attic with expanding foam. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. The foam baffles hold up in michigan s humidity whereas cardboard baffles can absorb moisture causing them to fall and be ineffective. This guide covers the installation of this valuable. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles.

Earlier this year i got a question about a home that had spray foam insulation in the attic. Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic. In addition to offering airflow in your attic space baffles keep attic insulation off your roof deck which is especially important for cold michigan winters. Nothing unusual about that.