Parapet Wall Roof To Wall Flashing Detail

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.

Parapet wall roof to wall flashing detail.

Flashing over rooang fascia sheatiiing 2 x 4 sleepers aligned w rafters provide. Parapet wall with edge grip. Unlike standard exterior walls parapet walls are exposed to the elements on three sides. No air control in either the roof assembly or the wall assembly.

To wall sloped roof no overhang ledger support. High wall flashing detail 5 wide sheets. Detail drawing dwg dwg 425 kb en. No vapor control layer and thermal bridging everywhere.

Copper base flashing which extends at least 8 up the wall. Skylight roof hatch flashing. Capping or parapet flashing. High wall flashing detail 10 wide sheets.

No membrane under the parapet flashing. Paraguard expansion joint roof to wall with parasolo flashing. The roofing squares are locked into a 20 oz. 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.

Exterior wall parapet rafters prep. Parapet walls are a difficult detail with a long history of failure. Ah but not in the way you think. Figure 8 flashing single wythe walls at roof parapet intersection ref.

Parapet removal involves modification to both the wall and roof. Parapet with paraguard coping and parasolo flashing. Where this is unavoidable use an overflashing between the penetration and the ridge or parapet for roof sheet drainage design refer to the stramit roof slope design guide. Change of pitch flashing sits on batten roof fixing seal seal ensure that the underlap length is sufficient to prevent wind driven rain from.

The counterflashing laps the base flashing a minimum of 3. Furthermore parapets are often inadvertently connected to interior space via balloon framing gaps in structure or penetrations for wiring and mechanicals introducing warm moist. This detail shows a flashing condition at a vertical wall or parapet. And to make matters worse structurally we also tend to have some issues.

Wall base termination. Roof area divider curb type. Roof wall flashing detail specifications snafus. Air leakage into and out of everything and everywhere.

Paraguard expansion joint roof to roof with parasolo flashing.