Stage 2 Framing. Trailer connection; framing of walls and roof.
Inspection tips for framing.
*IMPORTANT:
NOAH will no longer approve electrical panels in any storage/sleeping loft, as ANSI 119.5 code requires it to be easily accessible. All homes are now required to have a Stage 2 Dry in inspection prior to roof being covered.
Measure the total height and width of the unit. The maximum width is 8’ 6”; maximum height is 13’6”. Total means total!!! Be sure to include overhangs and protrusions. This measurement will be done at the Stage 3 framing and the Stage 5 final inspection.
Note: If these measurements are exceeded you will need a special permit to move the home.
Note: if floor plywood will cover floor insulation or trailer attachment, a separate partial inspection of these items must be performed prior to installing plywood. Then frame up the home and schedule the Stage 2 Framing inspection.
The following is what to expect the inspector to look for.
- Attachment to trailer (example: ½” all thread welded to the trailer 1’ from each corner and every 6’ of exterior wall)
- If welding is not an option then the ½” bolt or all thread will have to go through the frame with a lock washer and nut.
- Floor (example: 3/4” pressure treated plywood screwed to the trailer cross members)
Walls (example: nominal 2×4 no.2 or better studs 16” o.c. with single bottom and double top plates, ½” zip panel sheathing or equivalent, glued and nailed 4” on the edges and 8” in the field with 8D rink shank nails.)
Ceiling/roofs (example: nominal shed roof, 2×6 rafter/ceiling joists 24” or 16”o.c. with maximum span 7’6”; ½” OSB sheathing nailed 3” o.c. on the edges and 6” o.c. in the field with 8D rink shank nails. If using 24” o c then ½” H clips at the plywood joints between rafters will be needed.
Strapping. (example: Optional, GoBolts connected to each anchor bolt with 2” long Needs connectors, 1’ from each corner, every 6’ of wall and on either side of all openings greater than 6’, penetrating the double top plate with a 3”x3” washer, a lock washer and ½” nut. The rafters attach to the top plates with a Simpson H2.5 strap on the end of each rafter. 10D galvanized hanger nails 1 ½” long were nailed into each nail hole of each strap.)
Framing wall to bottom plate connection.
In addition to the rafter ties ( Hurricane ties) you will also have to mechanically attach all exterior king wall studs to the bottom plate. This is only the studs that go from the bottom plate unbroken to the top plate. This can be done by using Sinpson H2.5 twist rafter ties or equivalent.
Simpson hangers
hurricane straps
Simpson strong ties
- Headers: A properly sized header must be used in all bearing walls including the span over the wheel well.
- Shear/rack walls: (example: The exterior walls with the above plywood, studs, nails and nail pattern create the shear walls of the home, however the rear wall with the entrance door and window does not have enough plywood area to create a sufficient shear wall. A 3 ½” by 12” glue lam header is installed under the window for added shear strength.)
- A builder may also use engineered sip panels, engineered metal framing or engineered trusses in the build. The inspector will need engineer’s specifications to insure proper use and installation of these systems.
When framing a roof the collar tie is a 2x connecting the two opposing rafters in the upper third of the roof and a rafter tie is a 2x connecting the two opposing rafters in the lower third of the roof. A ceiling joist, rafter or truss usually sits atop and is fastened to the top plate. If there is a single top plate, I.E. Advanced Framing, the rafter or truss must be directly above a stud or header.
Tyvek is no longer needed when using the new zip panel sheathing. What is the thickness and nail pattern of the sheathing? Make sure all wall sheathing has a framing member behind the joint. Make sure 24” o.c. rafters use an H clip or framing at the joints.
T111 or ½” exterior plywood with batten boards will not require sub sheathing.
Check list.
- Length
- Width
Different parts of the country refer to the framing parts differently. Some call a tie beam a ridge beam or a ridge board. Above are some common terms.