Intersection Of Wall And Roof Waterproofing

Step 2 flashing 2 covers both the apron flashing upstand and the wall underlay.

Intersection of wall and roof waterproofing.

Flashing provides the extra protection these spots need. Yes even flat roof to wall intersections are not being properly done. The omittance of the termination metal leaves an opening at the top of the coping and allows for moisture infiltration at the space between the parapet wall and the structural wall.

Anywhere surfaces intersect on a roof is a prime spot for water seepage. Above we show a feeble attempt at flashing and counter flashing at the roof wall intersection of a low slope roof. Figure 79a flashing the junction step 1. 82 build supplement flashings section 4 roof wall intersections figure 79b step 2.

Unauthorized entry shall be restricted to the waterproofing areas. The most common mistake at this intersection is to allow the metal coping to but up to the wall without the application of termination metal. Typical waterproofing details of foundations above the roof slab shall be followed as per approved shop drawing. A vertical structure through the roof that ventilates smoke and combustion gases from a fireplace boiler or stove to the outside atmosphere.

A waterproofing seal installed at the intersection of the roof and chimney and used to prevent moisture penetration. Proper roof wall flashing example. These problem areas include the edges of skylights and chimneys soil stacks vent fans and roof valleys as well as the intersection of the roof deck and dormer walls.