Intersection Of Wall And Roof Waterproofing

Flashing provides the extra protection these spots need.

Intersection of wall and roof waterproofing.

The installer tacked a row of asphalt shingles to the wall caulked their top edge and hoped for the best. Typical waterproofing details of foundations above the roof slab shall be followed as per approved shop drawing. 82 build supplement flashings section 4 roof wall intersections figure 79b step 2. 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.

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. A vertical structure through the roof that ventilates smoke and combustion gases from a fireplace boiler or stove to the outside atmosphere. On completion of waterproofing membrane and before undertaking any further activity it shall be tested by plugging the outlets and flooding 50mm above the highest. Proper roof wall flashing example.

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. Above we show a feeble attempt at flashing and counter flashing at the roof wall intersection of a low slope roof. Anywhere surfaces intersect on a roof is a prime spot for water seepage.

A waterproofing seal installed at the intersection of the roof and chimney and used to prevent moisture penetration. Unauthorized entry shall be restricted to the waterproofing areas. Figure 79a flashing the junction step 1.