Roof Sheathing Thickness Ohio

Minimum thickness most roofs will be sheathed in plywood at least 3 8 inch thick.

Roof sheathing thickness ohio.

Where flashing is of metal the metal shall be corrosion resistant with a thickness of not less than 0 019 inch 0 483 mm no. Wall and roof intersections at gutters wherever there is a change in roof slope or direction and around roof openings. Loads will vary with the. I was told that the spring of 2008 it changed.

Underlayment shall be applied in accordance with section 1507 2 8 except all laps shall be a minimum of 4 inches 102 mm. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. Does anyone know what is the current ohio residential code is for roof decking.

Sheathing should be a minimum of 19 32 inch thick. Rafters shall be nailed to the top wall plates in accordance with table 602 3 1 unless the roof assembly is required to comply with the uplift requirements of section 802 11. The typical thickness range for sheathing is 3 8 to 3 4 inch. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

1 inch 25 4 mm. Underlayment shall be attached using metal or plastic cap nails with a head diameter of not less than 1 inch 25 mm with a thickness of at least 32 gage 0 0134 inch 0 34 mm sheet metal. Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. This is for a re roof of a shed style roof of a garage with 2x6 rafters not trusses.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 9 5 mm head complying with astm f1667 of a length to penetrate through the roofing materials and not less than 3 4 inch 19 1 mm into the roof sheathing. Where the roof sheathing is less than 3 4 inch 19 1 mm thick the fasteners shall penetrate through the sheathing. Allowable spans for lumber floor and roof sheathing a b for si.

That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. That s considered to be the minimum. 8d ring shank nails should be used instead. I am trying to find out the decking thickness for 24oc.