Flash Parapit Wall To High Roof Wall

No vapor control layer and thermal bridging everywhere.

Flash parapit wall to high roof wall. I recommend 12 in wide step flashings bent for a 5 in. Water may be entering the coping at the top of the parapet or entering the roof side of the parapet. No membrane under the parapet flashing. This detail may be used where wall heights are 24 48 inches above roof surface.

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. Prior to the installation of the parapet coping a metal flashing material shall be adhered to the structural wall. The installation of the coping to wall termination provides waterproofing protection and allows for differential movement between the two construction components.

On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically. And to make matters worse structurally we also tend to have some issues. This detail shows a flashing condition at a vertical wall or parapet. 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.

Air leakage into and out of everything and everywhere. The roofing squares are locked into a 20 oz. The metal flashing shall lap the parapet wall. Fabrication procedure 1 metal cap flashing.

The counterflashing laps the base flashing a minimum of 3. Water from either of these locations may bypass flashing and enter the backup wall directly. Fasten outside face with continuous concealed clip type fasteners or with two concealed discontinuous clips or cladding screws evenly spaced between seams. Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall.

The profile of specific components their. Copper base flashing which extends at least 8 up the wall. Roof leg and a 7 in. Ah but not in the way you think.

No air control in either the roof assembly or the wall assembly. How to attach flashing to a parapet wall. The narrower step flashing just isn t wide enough to protect the intersection fully. Many apartments and condominiums have flat sections of roof designed for air conditioning or other roof mounted equipment.

Bigger step flashing is better. 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. Architects of ultra modern.