Roof Sheathing Thickness Ontario

The typical thickness range for sheathing is 3 8 to 3 4 inch.

Roof sheathing thickness ontario.

That in a nutshell is the one big advantage plywood holds over osb. Never attach roof sheathing with staples. The ontario building code thickness rating and material standards 9 23 16 2. Division b part 5 page 5 11 the national building code now dictates that all flat roof deck and balcony areas are considered roofs and when specifying a pvc.

For sub floor s. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Ontario building code wall sheathing requirement. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.

Loads will vary with the pitch of the roof. 1 the thickness or rating of roof sheathing on a flat roof used as a walking deck shall conform to either table 9 23 14 5 a. The ontario building code thickness or rating. Cgsb ca cgsb 37 54 polyvinyl chloride roofing and waterproofing membrane national building code of canada 2005.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Our 20 yr old house has no sheathing except on the roof single storey 1600 sqft bungalow usual windows and doors 6 12 combo gable and cottage roof typical 20 yrold construction around here walls are 2 by 4 plus sm outside then vinyl siding the usual letin steel diagonal bracing on the. Sheathing should be a minimum of 19 32 inch thick. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.

8d ring shank nails should be used instead. Plywood s advantage over osb.