No vapor control layer and thermal bridging everywhere.
Flash parapit wall to high roof wall.
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.
Architects of ultra modern.
The roofing squares are locked into a 20 oz.
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.
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.
Cut to form a 25mm 1 wide flange for seam fabrication at cap flashing wall transitions.
Fabrication procedure 1 metal cap flashing.
How to attach flashing to a parapet wall.
Ah but not in the way you think.
The profile of specific components their.
I recommend 12 in wide step flashings bent for a 5 in.
On walls greater than 36 inches high membrane wall flashing sheets are suggested to be strapped i e installed vertically.
With it parapet walls are indicated automatically on the roof sketch as flattened panels similar to an unfolded pizza box.
See sbs roof systems 12 6 cap flashings base flashings and reglets parallel standards are shown.
Air leakage into and out of everything and everywhere.
And to make matters worse structurally we also tend to have some issues.
No membrane under the parapet flashing.
Bigger step flashing is better.
No air control in either the roof assembly or the wall assembly.
This detail shows a flashing condition at a vertical wall or parapet.
Mortar bridges below the through wall flashing may be allowing water to cross the cavity into the backup wall.
The installation of the coping to wall termination provides waterproofing protection and allows for differential movement between the two construction components.
This detail may be used where wall heights are 24 48 inches above roof surface.
Wsrca suggests for walls 24 inches and taller that wall cladding be considered in lieu of membrane wall flashings per detail tp 8a.
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.
The narrower step flashing just isn t wide enough to protect the intersection fully.
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.
