Raft-R-Mate attic vents protect goods stored in your attic from moisture damage.
Owens Corning Raft-R-Mate attic vents are designed to allow fresh air to pass from the soffit to the attic of your home. This process keeps excessive heat from building up in your attic and reduces your summer energy bills. These vents also remove trapped moisture and prevent ice dams from forming and causing costly roof damage during the winter. Raft-R-Mate attic vents are made of rot-and-deterioration resistant extruded polystyrene. They are easy to install and can serve as air-stop and insulation blocks between rafters. You can install Raft-R-Mate attic vents in finished or unfinished attics.
Instructions
Insulation Block and Air Stop
1. Center a Raft-R-Mate between two rafters in your attic
2. Bend the vent down at its accordion hinge so its center protrudes outward and its edges lie flat against the rafters.
3. Fold the bottom of the Raft-R-Mate tightly over its crease. Fit the bottom tightly over the top plate and staple it to the top plate. Repeat for each rafter space you want to install the Raft-R-Mate in as an air stop and insulation block.
Installing Straight Vent
4. Remove any loose debris from the soffit vent.
5. Center a Raft-R-Mate between two 24 inch on-center attic rafters or snap it in half for 16 inch on-center attic rafters. Make sure the Raft-R-Mate is positioned through any existing fiber insulation in a way that it has direct access to the soffit vent.
6. Staple the top left and right flanges to the underside of the roof sheathing and staple the center valley if there is sheathing behind it. Staple every ten inches at both flanges as well as the center (if you are able to staple the center).
7. Repeat between each rafter for unfinished attics only.
8. Continue to place and staple Raft-R-Mate vents until you reach the peak of your attic. Cut full vents with a knife or scissors if you are unable to fit a full vent at any point. Insulate the peak of the attic with fiberglass insulation if it is not already insulated before you install the last Raft-R-Mate vent.
9. Insulate any remaining space between the rafters with fiberglass batt insulation such as Owens-Corning kraft-paper faced insulation with vapor barrier or an unfaced insulation with a separate four-to-six millimeter polyethylene vapor barrier. Install a finishing material such as gypsum tile over the insulation.
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