Parapet walls are a difficult detail with a long history of failure.
Parapet wall roof to wall flashing detail.
Paraguard expansion joint roof to wall with parasolo flashing.
Where the roof slope is parallel to the parapet or at right angles to the apex of the roof the reconstruction detail after removing the parapet can be relatively simple by incorporating a cavity behind the cladding and flashing the top of the parapet.
This article illustrates and discusses alternate or rather goofy attempts at roof wall intersection flashing to prevent leaks water damage and points out where leak risks may remain.
No membrane under the parapet flashing.
Skylight roof hatch flashing.
High wall flashing detail 5 wide sheets.
In our page top photo my grandson tanner gilligan points out the white caulk that was installed as a stopgap.
Air leakage into and out of everything and everywhere.
No vapor control layer and thermal bridging everywhere.
Furthermore parapets are often inadvertently connected to interior space via balloon framing gaps in structure or penetrations for wiring and mechanicals introducing warm moist.
Parapet wall with edge grip.
This detail shows a flashing condition at a vertical wall or parapet.
Copper base flashing which extends at least 8 up the wall.
Flashing over rooang fascia sheatiiing 2 x 4 sleepers aligned w rafters provide.
Roof area divider curb type.
Ct 07 concrete or masonry wall base flashing with a 5 course flashing system not suitable for stucco wall assemblies pdf.
Detail drawing pdf pdf 187 kb en thru wall counterflashing.
Figure 8 flashing single wythe walls at roof parapet intersection ref.
Wall base termination.
High wall flashing detail 10 wide sheets.
Ah but not in the way you think.
Parapet with paraguard coping and parasolo flashing.
Unlike standard exterior walls parapet walls are exposed to the elements on three sides.
Paraguard expansion joint roof to roof with parasolo flashing.
And to make matters worse structurally we also tend to have some issues.
Exterior wall parapet rafters prep.
To wall sloped roof no overhang ledger support.
Ct 06 base flashing wall cover on wood parapet wall.
6 interior wall treatments concrete masonry walls with an interior treatment may also utilize a through wall flashing installation of flashings as shown in figure 9.
Roof wall flashing detail specifications snafus.
The counterflashing laps the base flashing a minimum of 3.
The roofing squares are locked into a 20 oz.
No air control in either the roof assembly or the wall assembly.