Roof Sheathing Help Leak Tight

As described above water collects on the top of windows and is forced to the window s edge where the flashing leads water beneath the foam.

Roof sheathing help leak tight.

Sometimes the water shows up at a ceiling spot distant from the leak. Use enough water to mimic heavy rains. Run water over the low side of the penetration for several minutes while the helper watches for any water droplets. 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.

If you tuck window flashing under the foam sheathing you may create a leak. Nail the drip edge to the roof sheathing at roughly 18 24 spacing intervals using roofing nails. Begin soaking low on the roof just above where the leak is visible inside the house. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures.

Points to the installation of ice and water shield along the lower roof eaves protecting against ice dam leaks that are common on un vented roofs in cold weather or snow climates. Some roof leaks are tough to locate.