Pitch To Flat Roof Transition

Transition flashing installation guide 1.

Pitch to flat roof transition.

Most people view pitching a flat roof as a tedious job. We see this quite frequently in log home roofs with porches for example. This is a fairly common roof detail. Now we re going to look at something that does happen quite often.

Measure 1 1 2 from bottom edge of transition flashing. The flat roof already has a slight pitch as it is required by law. See the illustration below. The roof plane goes from one pitch to a lower pitch.

Install bottom roofing panels first 2. After bottom roofing panels have been installed set one piece of transition flashing down where the top portion non hemmed of the transition flashing lies flat on the upper roof 3. We are in the process of having a standing seam metal roof installed. Our 4 12 pitched roof transitions to a flat roof on three sides with two valleys feeding into the flat roof on the corners pls see pic we had the flat roof covered with tpo which runs at least a foot up the sloped roof on the three sides.

A very important detail is where the flat roof is connecting the pitch roof. Pitch transitions are a common roof detail. Armourfix and armourvalley membranes must be installed and extended 60 90 cm up the main roof underneath the shingles in order to assure a waterproof connection. You will need to ensure that you are in standards with your local building codes and have the permits required.

The starter strip and first row of shingles must be applied 25 cm from the bottom of the slope roof or main roof above the slope transition. Learn more about the installation of pitch transition trim by watching the short video or reading the transcript below.