Flashing Metal Roof Against Wall
Bigger step flashing is better.
Flashing metal roof against wall. It s kind of like a step so water hits it comes off and moves off the roof. Another term for this is a step flashing. Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
We have our z trim installed and tape seal on top of the z trim so we can install this and. Metal flashing also called roof flashing goes against a stucco wall to protect it from water damage. 105 degrees for my 15 degree pitch roof. Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings.
The final thing to do is install the end wall trim. It is important that you use the right method when you install flashing. Open valleys have metal flashing to protect this critical area of the roof. Even though roof flashing is one of the most important elements of a roof not many people know how to install roof flashing against a wall properly.
Flashing is usually made of sheet metal and is used to seal and protect joints in a building like those where a roof meets the brick walls of a chimney from roof leaks by directing the flow of. I recommend 12 in wide step flashings bent for a 5 in. Roof leg and a 7 in. Or to use angled 150x150mm metal sheet fixing it down on the metal roof using stitching screws and then flashing it against the wall using flashing tape.
Follow the photo for illustrated instructions. Before we install the end wall flashing we have to apply tape sealant to the top of the z trim so that there s a water tight barrier between the end wall flashing and the top of the z. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Proper roof wall abutment flashing examples.
Install base flashing under shingles or over metal roofing material. The main problem with this as i see is getting the angle of the abutment sheet correct. The narrower step flashing just isn t wide enough to protect the intersection fully. 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.
For areas where the walls meet the roof you will need to use the step flashing technique but you will need kickout flashing in other areas.