Flat Roof Against Wall

Ideally i like to start by installing a 3 ft.

Flat roof against wall.

Metal roof flashing is a galvanized sheet metal bent at right angles with about eight to 12 inches on each side of the angle. Sheet of housewrap or even better a piece of self adhering roof underlayment to the wall before the first truss or roof rafter is placed against it. Follow the photo for illustrated instructions. The sheet acts as a backup at a vulnerable junction.

If the roof runs flat up against the brick wall you must install the roof side of the flashing either under the last layer of shingles or over the roof material if it is metal. It is commonly used in two story and side split houses. 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. Below are two photographs of roof wall step flashing completed and effective of a slate roof against a brick wall below left and in process with step flashing against a dormer sidewall before the dormer siding has been put in place below right.

Here the rubber roof will need to run up the walls and glue to the sheathing. 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. On two sides the roof abuts a parapet a short wall common around flat roofs as well as a wall for the third floor. This video demonstrates where flashing could be leaking from on a brick wall.

Some roof leaks are tough to locate. Sometimes the water shows up at a ceiling spot distant from the leak. Metal roof flashing can be use to seal gaps between roof walls. Housewrap creates the foundation.

Proper roof wall abutment flashing examples. The roof framing itself in this. Flashing on a wall above a flat roof. When the roof of an addition garage porch or patio meets a brick wall the intersection creates a number of concerns.

These kinds of houses often have a roof that butts against a 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. To keep water from pooling at these inside corners tom rips 2x4s lengthwise on a 45 degree bevel with a table saw. How to frame a roof against a brick wall.