Flash Parapit Wall To High Roof Wall

The roofing squares are locked into a 20 oz.

Flash parapit wall to high roof wall.

Water from either of these locations may bypass flashing and enter the backup wall directly. Air leakage into and out of everything and everywhere. How to attach flashing to a parapet wall. See sbs roof systems 12 6 cap flashings base flashings and reglets parallel standards are shown.

Bigger step flashing is better. And to make matters worse structurally we also tend to have some issues. No vapor control layer and thermal bridging everywhere. Prior to the installation of the parapet coping a metal flashing material shall be adhered to the structural wall.

The profile of specific components their. On the inside face of a parapet or wherever a masonry wall intersects a lower roof i have seen cases where the masonry flashing exits the wall one or more courses above the top of the retaining bar for the roof base flashing. Many apartments and condominiums have flat sections of roof designed for air conditioning or other roof mounted equipment. The metal flashing shall lap the parapet wall.

On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically. Architects of ultra modern. Roof leg and a 7 in. The installation of the coping to wall termination provides waterproofing protection and allows for differential movement between the two construction components.

Fabrication procedure 1 metal cap flashing. Water may be entering the coping at the top of the parapet or entering the roof side of the parapet. Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings. No air control in either the roof assembly or the wall assembly.

No membrane under the parapet flashing. The counterflashing laps the base flashing a minimum of 3. The narrower step flashing just isn t wide enough to protect the intersection fully. Ah but not in the way you think.

Cut to form a 25mm 1 wide flange for seam fabrication at cap flashing wall transitions. Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a. This detail may be used where wall heights are 24 48 inches above roof surface. Copper base flashing which extends at least 8 up the wall.

Accounting for roof penetrations when dealing with parapet walls the extra material needed to cover the vertical surface of the inside face of the parapet isn t the only added factor to take into consideration. I recommend 12 in wide step flashings bent for a 5 in. This detail shows a flashing condition at a vertical wall or parapet.