Roof To Wall Intersection Flashing

Sealing Structural Penetrations At Roof Wall Intersections Roofing Roof Repair Diy Roof Repair

Sealing Structural Penetrations At Roof Wall Intersections Roofing Roof Repair Diy Roof Repair

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Most mason contractors are diligently installing flashing and weep holes at the base of walls as well as at the window head and sill.

Roof to wall intersection flashing.

I cut the tape so that it laps onto the housewrap above and 3 in. Flashing joints are lapped 6 in the direction of water flow. Install step and kick out flashing at all roof wall intersections to protect walls from water intrusion and install boot or collar flashing at all roof penetrations to protect roofs from leaks. Flexible flashing tape seals the eave to the wall.

Use step flashing that has a 2 to 4 inch longer vertical leg than normal. The flashing extends up the wall at least 4. Raked metal apron flashings must have tapered stop ends to the lower end of the flashing to divert water away from the back of the upstand and into the gutter and have a 5 minimum cross fall see roof to wall junction in build 160. At roof to wall intersections see figure 1.

Thru wall flashing originates with a vertical leg in contact with the exterior sheathing tucked or shingled up under the house wrap and a horizontal leg that extends all the way through the masonry to the exterior surface of the wall. I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall. Figure 1 apron flashing at roof wall junction horizontal flashing. The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.

The metal flashing is formed with a hook edge and cleated on 12 centers. Product overview the gibraltar roof to wall flashing is made from trusted 28 gauge galvanized steel. Repair any damaged sheathing and framing. Step 1 flashing 1 is a typical apron roof flashing.

Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it. It is designed to cover and protect roof to wall intersections from water infiltration. Do not seal housewrap or building paper to step flashing. If there is no metal flashing installed at the wall roof intersection or if the existing flashing is damaged improperly installed or allowing water to damage the wall remove the siding and any existing flashing to expose at least 8 inches of the wall.

Roof to wall flashing is bent at a 110. 82 build supplement flashingssection 4 roof wall intersections. Proper installation of flashing and counter flashing at the intersection of a vertical wall with a roof surface is required to avoid roof leaks. Our page top photograph illustrates a successful installation of flashing and counter flashing along intersection of a roof surface with the side of a brick constructed dormer.

Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
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