Roof Sheathing Thickness Ohio

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

Roof sheathing thickness ohio.

Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. I was told that the spring of 2008 it changed. 802 4 3 hips and valleys. 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. Never attach roof sheathing with staples. 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. 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.

That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. This is for a re roof of a shed style roof of a garage with 2x6 rafters not trusses. 1 inch 25 4 mm. Does anyone know what is the current ohio residential code is for roof decking.

8d ring shank nails should be used instead. Allowable spans for lumber floor and roof sheathing a b for si. Sheathing should be a minimum of 19 32 inch thick. Where the roof sheathing is less than 3 4 inch 19 1 mm thick the fasteners shall penetrate through the sheathing.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Loads will vary with the. The typical thickness range for sheathing is 3 8 to 3 4 inch. That s considered to be the minimum.

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. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. I am trying to find out the decking thickness for 24oc. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.