ADU: Difference between revisions

Line 24:

#Cut rafter ends so fascia matches with sheathing. Cut small piece of plywood to use as small straight edge screwed in to the rafter tail. Cut plywood at 3.56 to allow 90 degree rafter tails. Place sheathing at edge but far enough away to allow room for circular saw downward cut. Clamp a 2x4 at edge of sheathing for safety while leaning over and cutting with circular saw, alternatively using a ladder from inside of second level and reaching out with circular saw might be safer and easier. Another approach is to pull back the sheathing from 1 to 2 feet lie flat on the roof top, screw a 2x4 along the bottom edge of the sheathing and then reach out and down to access the roof edge.

#Install 2x10 fascia using heavy duty brackets screwed into bottom of rafter ends. They should leave room for a 2x10 to drop into place easily. Place the 2x10 at the edge of the roof and slowly from the center lift the 2x10 on end until it drops into both brackets simultaneously.

#There is no requirement that shear wall panel edge blocking match the depth of the wall studs, nor is there a requirement that it be oriented in the same axis as the wall studs. Shear wall blocking can be narrower than the adjacent studs (i.e. 2×4 blocking in a 2×6 wall) or rotated 90 degrees (oriented with the wide face of the blocking attached to the sheathing panel edges), provided the following conditions are met:

## The blocking is 2x nominal or greater as required in the American Wood Council’s Special Design Provisions for Wind and Seismic (SDPWS) section 4.3.6.1.

## The minimum nail penetration of the panel edge fasteners into the blocking (per SDPWS Table 4.3A) is still obtained.

ADU: Difference between revisions

Kirk (talk | contribs)

Navigation menu

Page actions

Page actions

Personal tools

Navigation

Search

Tools

@@ Line 24: / Line 24: @@
 #Cut rafter ends so fascia matches with sheathing. Cut small piece of plywood to use as small straight edge screwed in to the rafter tail. Cut plywood at 3.56 to allow 90 degree rafter tails. Place sheathing at edge but far enough away to allow room for circular saw downward cut. Clamp a 2x4 at edge of sheathing for safety while leaning over and cutting with circular saw, alternatively using a ladder from inside of second level and reaching out with circular saw might be safer and easier. Another approach is to pull back the sheathing from 1 to 2 feet lie flat on the roof top, screw a 2x4 along the bottom edge of the sheathing and then reach out and down to access the roof edge.
 #Install 2x10 fascia using heavy duty brackets screwed into bottom of rafter ends. They should leave room for a 2x10 to drop into place easily. Place the 2x10 at the edge of the roof and slowly from the center lift the 2x10 on end until it drops into both brackets simultaneously.
+#There is no requirement that shear wall panel edge blocking match the depth of the wall studs, nor is there a requirement that it be oriented in the same axis as the wall studs. Shear wall blocking can be narrower than the adjacent studs (i.e. 2×4 blocking in a 2×6 wall) or rotated 90 degrees (oriented with the wide face of the blocking attached to the sheathing panel edges), provided the following conditions are met:
+## The blocking is 2x nominal or greater as required in the American Wood Council’s Special Design Provisions for Wind and Seismic (SDPWS) section 4.3.6.1.
+## The minimum nail penetration of the panel edge fasteners into the blocking (per SDPWS Table 4.3A) is still obtained.