How To Install Attic Insulation Vents

Step 3 fold the bottom edge of the raft r mate to form a tab that fits tightly over the wall s top plate.

How to install attic insulation vents. Continue installing additional strip vents until you reach the far end. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent. Fill every joist space completely and evenly with the insulation leaving attic vents uncovered. Fit each one snuggly in the bay with the bottom starting where the ceiling joist meets the roof rafter.

For diy attic insulation you ve got two choices. From the roof s peak. Drive nails up through the sheathing and shingles to mark roof air vent locations. The air enters through the soffit vents near the attic floor travels up toward the ridge vent and exits through the attic.

Loose fill or batt the common term for blanket insulation. Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation. Step 6 remove any insulation from the new vent photo by merle henkenius. With a helper to load the blower with insulation as needed start at the perimeter of the attic and work toward the attic access door.

You will need a baffle for each space between the rafters. How to install roof vents photo 1. Mark attic roof air vent locations center nails between rafters 18 in. Staple the tab to the top plate using 3 8 inch staples.

Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. Find a pre screened local home insulation contractor. Level uneven spots with a rake. Trim the last vent to length using aviation snips.

If your rafters have 16 inch spacing break the vents in half lengthwise along their perforated centerlines and install one half width section in each rafter bay. To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles. Both can be added to uninsulated attics or layered over existing material. To install the rafter vents staple them directly to the roof decking.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Use a cordless drill driver to secure the vent to the soffit with in long no. Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings. To allow this airflow install rafter vents at the soffits.

Just slide them along the underside of the roof to the soffit and attach them with staples.