Attic Insulation Baffles Installation

As with attic floor insulation moisture and heat removal are the reasons for creating proper air.

Attic insulation baffles installation. Make sure the fill s depth is uniform across the attic. As listed in the definition above the baffle is meant to regulate the flow of air. 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. If your roof rafters have been covered over with drywall or plywood you will have to remove it in order to install the baffles.

They come in several widths so purchase the baffle that fits between your rafters. Even with a 3 12 2 4 truss you are looking at a minimum r15 at the farthest edge. To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles. You can situate the baffles where the circulation is mainly required.

For ceilings without attics vented install both ventilation baffles and chutes. Without this air movement any moisture that gets into the attic area becomes stagnant and causes mold and mildew to develop. Installing rafter vents between the rafters along the soffit on the. Step 2 in the bay.

For ceilings with attics it is only necessary to install ventilation baffles. Cut at least two 24 inch squares of inch plywood to use as seat boards when crawling out into the attic. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. By installing the baffles properly you can increase the r value all the way out to the exterior sheathing.

To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space. You will need a baffle for each space between the rafters. Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation. Reduce gap to when using blown in insulation.

Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping. Ado products durovent 23 1 2 in. Ventilation chutes should be installed with a 2 gap between the ends. 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.