Attic Insulation Baffles Installation

Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation.

Attic insulation baffles installation.

You can situate the baffles where the circulation is mainly required. For ceilings without attics vented install both ventilation baffles and chutes. They come in several widths so purchase the baffle that fits between your rafters. 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. For ceilings with attics it is only necessary to install ventilation baffles. Measure the distance between your rafters and purchase enough rafter vent baffles to install one over each soffit vent. Ventilation chutes should be installed with a 2 gap between the ends.

Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation. Without this air movement any moisture that gets into the attic area becomes stagnant and causes mold and mildew to develop. 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. Cut at least two 24 inch squares of inch plywood to use as seat boards when crawling out into the attic.

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

To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles. Make sure the fill s depth is uniform across the attic. Reduce gap to when using blown in insulation. As with attic floor insulation moisture and heat removal are the reasons for creating proper air.

As listed in the definition above the baffle is meant to regulate the flow of air. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. Ado products durovent 23 1 2 in. Even with a 3 12 2 4 truss you are looking at a minimum r15 at the farthest edge.