ANSI 119.5 covers:
1. Fuel Systems and Equipment,
2. Health, Fire and Life Safety
3. Plumbing Systems and
4. Construction Requirements.
NFPA 70 (National Electric Code) is used for the electrical with special attention to Article 551 and 552 (RVs and PMRVs).
We “plus” these with structural and energy guidelines.
· R 13 INSULATION IN WALLS AND FLOOR
· R 19 INSULATION IN CEILING.
· STUDS 16” OC (24” O.C. with advanced framing method) MINIMUM, 2X4 WOOD OR METAL STUDS, OR SIP PANELS
· ½ CDX OR 7/16 – 9/16” OSB SHEATHING NAILED 4” ON EDGES AND 8” IN FIELD FOR WALLS. 8 D RING SHANK OR SCREWS WITH METAL STUDS ALL EDGES WITH SOLID BACKING
· HOUSE WRAP OR ZIP BOARD
· ROOF SHEATHING ½ CDX OR 7/16 (OR 9/16 FOR 24” OC RAFTERS) OSB SHEATHING NAILED 3” ON EDGES AND 6” IN FIELD FOR WALLS. 8 D RING SHANK.
· INSULATED WINDOWS AND DOORS.
· ROOF/WALLS ANCHORED TO THE TRAILER WITH ½” ANCHOR BOLTS 4’ OC AND STRAPPING. (EX SP1 & SP2 SIMPSON HANGERS ON TOP AND BOTTOM STUDS, H 2.5 SECURING RAFTER TO THE TOP PLATE.
· PROPERLY SIZED HEADERS AND JACK STUDS.
· UNDERLAYMENT AS NEEDED.
· AIR EXCHANGER OR OTHER MOISTURE CONTROL.
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.
Builders will now have the option of using International Plumbing Code 903.6 Extension Through the Walls. Vent Terminals through the wall shall terminate not less than 10” above ground and not under an overhang with soffit vents. Side wall vents shall be protected against birds or rodents from entering the vent. You must terminate 4’ below, 3’ above and 10’ horizontal of an opening or air intake.