Attic Insulation Baffles Installation

Baffles establish a channel for air to circulate between the insulation and the roof sheathing.

Attic insulation baffles installation. Ventilation chutes should be installed with a 2 gap between the ends. As listed in the definition above the baffle is meant to regulate the flow of air. Even with a 3 12 2 4 truss you are looking at a minimum r15 at the farthest edge. As with attic floor insulation moisture and heat removal are the reasons for creating proper air.

Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. Attic ventilation system with built in baffle 10 per carton 4 4 out of 5 stars 3 accuvent 14 5 x 50 16 o c flame retardant pvc high energy vent 50 pack acbp18429. Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation. For ceilings with attics it is only necessary to install ventilation baffles.

You can situate the baffles where the circulation is mainly required. To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles. Without this air movement any moisture that gets into the attic area becomes stagnant and causes mold and mildew to develop. Reduce gap to when using blown in insulation.

Step 2 in the bay. Make sure the fill s depth is uniform across the attic. For ceilings without attics vented install both ventilation baffles and chutes. The main function of an attic baffle is to draw the air in from outside your home and allowing it to circulate around your attic.

Ado products durovent 23 1 2 in. Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping. If your roof rafters have been covered over with drywall or plywood you will have to remove it in order to install the baffles. Installing rafter vents between the rafters along the soffit on the.

You will need a baffle for each space between the rafters. By installing the baffles properly you can increase the r value all the way out to the exterior sheathing. They come in several widths so purchase the baffle that fits between your rafters. Cut at least two 24 inch squares of inch plywood to use as seat boards when crawling out into the attic.