Seal Roof In Attic

Use enough of the roof patch to liberally cover the leaky area.

Seal roof in attic.

Map the roof leak. Seal air leaks where bearing or partition walls meet the ceiling in holes made for electrical wiring and where your attic floor meets the outside walls. If air can get in odds are moisture can as. Flex sealis a rubberized coating that sprays out the liquid seeping into those pesky holes in your roof.

Even though most of the gaps spilling warm air into your attic are buried under insulation you might be able to find evidence of them. Use a putty knife to spread the tar into the leaking hole on the inside of your roof. If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the opening. Let the wet areas dry and then apply the patch to the underside of the roof with a putty knife.

The number one prep step. Seal with silicone caulk. Find a diagram of common air leaks here here s a quick primer on fixing draft prone spots. Seal the gap between the flue and metal flashing with special high temperature caulk.

Before you leave your attic use a measuring tape to roughly map out where the leak is so you can find it once the rain stops. We also offer flex seal liquid a liquid form that can be poured brushed or rolled on with a paint roller. Begin by removing the shingles down to the wood sheathing and slip a strip of adhesive ice and water barrier available where roofing repair products are sold under the soffit main roof joint. Luckily the flex seal family of products can help fix.

Do not use spray foam. This construction approach was first used in the 1970s and it has been implemented much more widely since it was first included in the international code council s icc model building code in 2007 irc section 806 4. Look for areas where the insulation is darkened. Depending on how the roofs join you may have to cut a slot to work it in far enough.

Step 5 use a caulking gun to apply caulk to seal any holes that appear in the roof. Place the shingle or plywood onto the tar and spread more of the tar around the edges of your patch. When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic. Seal air leaks gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless.

Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.