Property Edge Flashing Overlap For Flat Roof

It bends around the edge of the roof channeling any moisture that penetrates the shingles away from the roof decking.

Property edge flashing overlap for flat roof.

Non flat surfaces 2 0 0 3 0 0 flashing straight overlap sealed roof underlap soaker continuous beads of silicone continuous beads of silicone either timber or steel battens can be used indicates trough turn up. Get a piece of the flashing to cover and line the edge up with the area and bend it around until it meets and overlaps the starting edge. Like all flashings it is constructed in a system to work with the effect of gravity. When lapping the eave metal overlap them so the seam faces away from the direction of prevailing view.

One common method is to lay the edge metal under the eaves membrane and over the rake membrane. If the gutter is lower than the bottom edge of the drip edge install flashing behind the drip edge and over the back edge of the gutter to remove the gap. The base flashing laps the roof a minimum of 4. If leaks continue to occur from ice dams consider installing roof edge heating cables.

Metal drip edge flashing is an important element of any roofing edge. This keeps the water on top of the flashing and away from the roof deck. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. Drip edge roof underlap roof overlap wall side underlap horizontal sheeting.

Roof drip edge flashing serves multiple functions on a building the foremost of which is to assist water in leaving the roof edge with minimum damage to other building components by directing the water off of the roof and into the gutter. The cap flashing is set in the mortar joint between bricks. Roof drip edge flashing at roof eaves gable ends. If the overlap is too short fix it by placing drip edge under the first row of roof shingles and be sure that the exterior edge is reaching over the gutter.

Click to enlarge any image. Step one in steep slope roofing is the edge flashing. Draw a line with a marker and trim the excess with the tin snips. Overlap pieces at least a couple of inches shingle style with pieces higher up on the roof overlapping pieces lower down.

The layering uses gravity to direct water out of the assembly. Three tips for overlapping drip edge flashing. The base flashing is fastened to the roof with cleats spaced a maximum of 12 apart. Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter.

Another way is to storm proof the edge by folding the membrane down over the gap between roof deck and fascia layering metal flashing on top sealed with another strip of flashing membrane. Base roof flashing works like shingles it overlaps and sheds water.