Difficulty
Moderate
Steps
5
Time Required
00:01:30
- Module 8a + b 5 steps
In Progress
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Quiz
0
Introduction
We are going to break down the framing into 11 framing modules that will be assembled on the ground in parallel with other construction processes.
This is the how-to for the modules of the 2nd floor. Starting from the south, they are labeled 4-9 with an "a" and "b" distinction referencing their location on either west or east respectively.
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Gather materials for Mod. 8a+b
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6: 2x4x12'
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2: 1/2"x4'x8' Plywood
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2: 3/4"x4'x8' OSB
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~100: 3-1/8" construction screw
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~100: 1-5/8" coated deck screw
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Cut all framing members for Module 8a
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2: 2"x4"x3'4-7/8" (horizontal top and bottom members)
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4: 2"x4"x5'5/8" (vertical members)
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Assemble
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Verticals go inside of horizontals, one on each edge, one at a distance of 2.5" from the left-most vertical, and one 1'2-1/2" from the right-most vertical. This layout should result in a 1'5-7/8" gap between the inner-most verticals.
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Use 3-1/8" screws to attach all framing. Screw through horizontals into end grain of verticals (2 screws per joint)
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Exterior Sheathing for Module 8a
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Measure and mark 5'11-1/8" up one side of the OSB and over 3'10-1/2". Cut the module's exterior sheathing using a 7-1/4" circular saw.
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Align the sheathing with a 5" overhang on the left and a 6" overhang from the bottom plate. The offset will create 5/8" gap on the right side for the previous module to attach to. The top overhang should be 1.5" to cover the top plate that will unify the modules during installation. The bottom overhang will cover the width of the bond beam.
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Fasten the 3/4" OSB to the framing using 1-5/8" coated deck screws around the perimeter and interior studs @ approximately 16" spacing.
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Insert R13 fiberglass insulation batts
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Cut insulation strips a little over-size so it will hold itself in place, and install them into the stud cavities with the paper faced side closest to the interior.
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Interior sheathing for module 8a
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Measure and mark 5'5-1/8" up one side of the plywood and over 3'5-7/8". Cut the module's interior sheathing using a 7-1/4" circular saw.
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Align the sheathing with a 5" overhang on the right (edge furthest from narrow stud-gap) and flush with the bottom plate. The offset will create 4" gap on the left side for the previous module to attach to. The top overhang should be 1.5" to cover the top plate that will unify the modules during installation.
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Fasten the 1/2" plywood to the framing using 1-5/8" coated deck screws around the perimeter and interior studs @ approximately 16" spacing.
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