Flashing Cmu Wall To Roof

Wait until the sealant becomes hard before you proceed to the next step.

Flashing cmu wall to roof.

Details concrete masonry roofing wrb flashing. It comes in 10 foot lengths or for step flashing 6 inch lengths. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. 3 includes such details.

There have always been problems with the flashing details at head walls rake walls and chimneys especially if stucco brick or stone veneer is used. All exterior wall coverings whether it is wood siding vinyl siding brick or stone veneer stucco etc. Wall intersection at shed roof. Although flashing is the primary focus of this tek it should be understood that the role of vapor retarders air barriers and insulation are also important elements to consider for any wall design as the performance of the entire system can be dependent on.

Roof to wall flashing. Metal roof flashing is a galvanized sheet metal that is bent at a 90 degree angle about 8 to 12 inches on each side of the angle. Under the eaves of a roof with little overhang and no gutters. Tek 19 5a flashing details for concrete masonry walls ref.

While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. This sealer will help the adhesive stick to the mortar much better. Step 3 seal masonry wall. In all cases make sure to detail the flashing membrane so that it sheds water.

Must be kept up off the surface of the roof a minimum 1 some manufacturers of exterior wall coverings require. Where an attached backyard deck meets the house. A sheet waterproofing membrane or water resistive barrier is utilized to flash over the back leg of the metal flashing see figure 4. The lower edge is hemmed and laps the base flashing and is formed to be a snug fit against the base flashing.

At the base of walls a sheet metal flashing assembly that extends from the face of the backup wall through the masonry should be used to form a drip outside the wall. Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof. Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies. Use a regular paintbrush to apply the sealer to the brick.

Step flashing to a brick wall involves a. The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high. It should tuck under the sheathing wrap above and over the flashing below. Above a lower roof where it abuts the wall.

Step flashing 2 brick. Use a good masonry sealer and spread it over the area where you are going to place the metal roof flashing. It is used to seal the gap between walls and intersecting roofs.