Flat Roof To Wall Flashing Detail

Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing.

Flat roof to wall flashing detail.

7 2 and 7 3 for rake and eave details. Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. 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 install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.

Open valleys have metal flashing to protect this critical area of the roof. Do not seal housewrap or building paper to step flashing. Size up the job. 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.

Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Other roof protrustions sothat notiiing obstructs tiieflow ofair from eave to ridge.

At roof to wall intersections see figure 1. 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 right in the real world. Flashing on a wall above a flat roof. See fact sheet nos.

Ideally this should be 150mm or a minimum of 75mm again common sense and exposure applies. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. Use step flashing that has a 2 to 4 inch longer vertical leg than normal.