How To Flash A Flat Roof To A Vertical Wall. We describe the different flashing materials that can be used, how and where flashing should be installed at various building wall intersections. Flashing helps close a joint in walls or roofing applications to keep water from seeping into the materials used in construction.
Learn how to install roof flashing the right way to funnel moisture away from your new roof.
Flash any intersecting planes on the exterior of the structure. If you're doing this, make sure you only install the vertical closure strips on rafters that line up with the raised part of the horizontal closure strips. Read our guide on how to choose the right roof skylight for your home. We describe the different flashing materials that can be used, how and where flashing should be installed at various building wall intersections.