Dormer Roof Ridge Detail

Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.

Dormer roof ridge detail. Rule in total length. Of the gable end the 3 ft. Dormers added in combination such as pairs fig. The dormer ridge roof junction requires a two part custom made flashing see figure 2 that goes under both the main and dormer roofs and over the valley flashing.

Rule would allow the dormer to extend within 3 ft. Stretch the tarp out until it overlaps the roof ridge. Having one or more dormers as part of a roof s structure can boost the curb appeal of a home that might otherwise be a bit bland. For smaller buildings where the 15 ft.

The new design features can look good inside too. Roof pitch is another important variable. This is basically a gabled dormer but the dormer roof flares out in the same way that the main roof on a house often flares out to accommodate a porch or an addition. 12 should not exceed the 15 ft.

In general a 11 2 story house with a roof pitch of 8 in 12 or steeper is suitable for a shed dormer. Cut a common rafter for a pattern and lay it on the drawing to check for fit. Measure and cut the temporary post that supports the ridge. Intricate corbels support the overhang of the roof.

This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. Acquire a heavy duty tarp that is large enough to entirely cover the roof. The preferred setback should be at least. Some of these can support the roof and prevent ridge sagging and wall spreading.

Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to al low flashing laps to face away from wind driven rain. Valley gutter dormer roof junction a valley gutter see figures 1 and 3 collects water from the main roof and the dormer roof. Snap lines for the rafters then draw in the ridge and soffit detail. Refer to the details.

Include roof pitch roof geometry slope length and climatic factors such as heavy snowfall or rainfall. 5 affix the tarp to the roof screwing a 2 by 4 5 08 by 10 16 cm over it. Dormers add architectural interest accent and detail. Collar ties rafter ties tension beams structural ridge beams.