ADU: Difference between revisions

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[https://drive.google.com/file/d/17FwF63TaCTlKElkEAhxmn6Drv_XKkOdk/view?usp=drive_link Historic Evaluation 121 Myrtle]

[https://drive.google.com/file/d/1N9BMhMpOuCuyko2a7g5hjgvlCexDx-oJ/view?usp=sharing Title 24 Evaluation]

[https://drive.google.com/file/d/1qPkE_l4jqRCsGkSw8NsfNRyCGKESOiIl/view?usp=drive_link Elevation Certificate]

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#Fill floor and roof diaphragms with liquid flash immediately after nailing, this will protect in case of rain.

#Use 6" heavy rafter screws through header at a 45 for each rafter and 6" timber screws through header straight up into blocking.

#I used 6" screws up through header into blocking.

#Make sure upper ends of rafter joists are perfectly aligned before screwing in place. The bottom ends can be cut to match sheathing. Also use only screws until everything has been completely set in place. This allows for easy removal of a joist if needed due to unseen warp or twisting.

#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.

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## 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.

#A35's or LPT4 (when header matches blocking) must be used at 16" on all blocking sections.

#HDU's I placed holdown on stud with one screw to get accurate drilling placement before drilling then removed screw for drilling. It was very difficult to get drilling alignment just right when drilling from second to first floor. I also used predrilled lag bolts (13/32 bit required for pilot hole, but I used 12/32?) into large beams.

Sheathing Notes

# We lifted upper sheets into place with wench and set on top of two temporary screws, then locked it in place with a couple of screws into studs. Mostly did nailing later.

# I doubled up studs when needed at edges of two exterior pieces of plywood.

# inspector said when nailing is 4" or less on edges this requires a structural engineer to inspect.

Roofing Notes

# I cleaned up roofing of all "shiners" and replaced with screws.

# Swept roof well before laying 36" self-adhesive underlayment.

== ADU Research Items ==

[https://www.abodu.com/blog/backyard-living/rules-requirements-for-adus-los-angeles Abodu LA County] [https://www.gatheradu.com/adu-info/GatherADU San Pedro ADU REQ] [https://pw.lacounty.gov/building-and-safety/adu/ LA County Building Dept]

== Photo Voltaic PV Solar Panels Inverter ==

[https://www.energy.ca.gov/programs-and-topics/programs/solar-equipment-lists California Energy Commission List of Approved equipment] [https://theinverterstore.com/portfolio-items/what-size-of-inverter-do-i-need/ Inverter Information] [https://sungoldpower.com/collections/solar-panel/products/450-watt-monocrystalline-solar-panel?variant=40934837616777 Solar Panels 450W Mono Perc] [https://www.asce.org/publications-and-news/asce-7 ASCE-7 Building Codes] [https://sno-safe.com/s5pvkit2mid.html Solar Panel Clamp] [https://sno-safe.com/s5sclampmini.html?srsltid=AfmBOoqkmSqaJNBQw7STXwx_9lqTFjHr3kVuW-ozVipz7F8HW08CIw87R0I Mini Standing Seam Clamps]

[https://diysolarforum.com/threads/requirements-of-pg-e-in-california.82362/ PGE Requirements] [https://www.pge.com/en/about/doing-business-with-pge/interconnections/contractor-resources.html PGE Solar contractor resources] [https://www.pge.com/en/about/doing-business-with-pge/interconnections/net-energy-metering-program.html#:~:text=For%20safety%20and%20reliability%20reasons,Connection%20requires%20an%20Interconnection%20Agreement. PGE Net Energy Metering Agreement] [https://yourprojects-pge.com/login PGE interconnection portal]

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@@ Line 22: / Line 22: @@
 [https://drive.google.com/file/d/17FwF63TaCTlKElkEAhxmn6Drv_XKkOdk/view?usp=drive_link Historic Evaluation 121 Myrtle]
+[https://drive.google.com/file/d/1N9BMhMpOuCuyko2a7g5hjgvlCexDx-oJ/view?usp=sharing Title 24 Evaluation]
+[https://drive.google.com/file/d/1qPkE_l4jqRCsGkSw8NsfNRyCGKESOiIl/view?usp=drive_link Elevation Certificate]
 <gallery mode="packed-hover">
@@ Line 57: / Line 61: @@
 #Fill floor and roof diaphragms with liquid flash immediately after nailing, this will protect in case of rain.
 #Use 6" heavy rafter screws through header at a 45 for each rafter and 6" timber screws through header straight up into blocking.
+#I used 6" screws up through header into blocking.
 #Make sure upper ends of rafter joists are perfectly aligned before screwing in place. The bottom ends can be cut to match sheathing. Also use only screws until everything has been completely set in place. This allows for easy removal of a joist if needed due to unseen warp or twisting.
 #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.
@@ Line 63: / Line 68: @@
 ## 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.
+#A35's  or LPT4 (when header matches blocking) must be used at 16" on all blocking sections.
+#HDU's I placed holdown on stud with one screw to get accurate drilling placement before drilling then removed screw for drilling. It was very difficult to get drilling alignment just right when drilling from second to first floor. I also used predrilled lag bolts (13/32 bit required for pilot hole, but I used 12/32?) into large beams.
+Sheathing Notes
+# We lifted upper sheets into place with wench and set on top of two temporary screws, then locked it in place with a couple of screws into studs. Mostly did nailing later.
+# I doubled up studs when needed at edges of two exterior pieces of plywood.
+# inspector said when nailing is 4" or less on edges this requires a structural engineer to inspect.
+Roofing Notes
+# I cleaned up roofing of all "shiners" and replaced with screws.
+# Swept roof well before laying 36" self-adhesive underlayment.
+== ADU Research Items ==
+[https://www.abodu.com/blog/backyard-living/rules-requirements-for-adus-los-angeles Abodu LA County] [https://www.gatheradu.com/adu-info/GatherADU San Pedro ADU REQ] [https://pw.lacounty.gov/building-and-safety/adu/ LA County Building Dept]
+== Photo Voltaic PV Solar Panels Inverter ==
+[https://www.energy.ca.gov/programs-and-topics/programs/solar-equipment-lists California Energy Commission List of Approved equipment]    [https://theinverterstore.com/portfolio-items/what-size-of-inverter-do-i-need/ Inverter Information]   [https://sungoldpower.com/collections/solar-panel/products/450-watt-monocrystalline-solar-panel?variant=40934837616777 Solar Panels 450W Mono Perc]    [https://www.asce.org/publications-and-news/asce-7 ASCE-7 Building Codes] [https://sno-safe.com/s5pvkit2mid.html Solar Panel Clamp]  [https://sno-safe.com/s5sclampmini.html?srsltid=AfmBOoqkmSqaJNBQw7STXwx_9lqTFjHr3kVuW-ozVipz7F8HW08CIw87R0I Mini Standing Seam Clamps]
+[https://diysolarforum.com/threads/requirements-of-pg-e-in-california.82362/ PGE Requirements] [https://www.pge.com/en/about/doing-business-with-pge/interconnections/contractor-resources.html PGE Solar contractor resources]  [https://www.pge.com/en/about/doing-business-with-pge/interconnections/net-energy-metering-program.html#:~:text=For%20safety%20and%20reliability%20reasons,Connection%20requires%20an%20Interconnection%20Agreement. PGE Net Energy Metering Agreement] [https://yourprojects-pge.com/login PGE interconnection portal]