Flash Parapit Wall To High Roof Wall

On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically.

Flash parapit wall to high roof wall.

Cut to form a 25mm 1 wide flange for seam fabrication at cap flashing wall transitions. See sbs roof systems 12 6 cap flashings base flashings and reglets parallel standards are shown. 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.

And to make matters worse structurally we also tend to have some issues. 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. Copper base flashing which extends at least 8 up the wall. 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.

The metal flashing shall lap the parapet wall. The roofing squares are locked into a 20 oz. Roof leg and a 7 in. The narrower step flashing just isn t wide enough to protect the intersection fully.

Air leakage into and out of everything and everywhere. Ah but not in the way you think. Fasten outside face with continuous concealed clip type fasteners or with two concealed discontinuous clips or cladding screws evenly spaced between seams. No air control in either the roof assembly or the wall assembly.

Prior to the installation of the parapet coping a metal flashing material shall be adhered to the structural wall. Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a. How to attach flashing to a parapet wall. Architects of ultra modern.

No vapor control layer and thermal bridging everywhere. This detail may be used where wall heights are 24 48 inches above roof surface. Water from either of these locations may bypass flashing and enter the backup wall directly. Many apartments and condominiums have flat sections of roof designed for air conditioning or other roof mounted equipment.

No membrane under the parapet flashing. The counterflashing laps the base flashing a minimum of 3. Bigger step flashing is better. With it parapet walls are indicated automatically on the roof sketch as flattened panels similar to an unfolded pizza box.

The profile of specific components their. Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall. Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings.