Roof Sheathing Thickness Alberta

Loads will vary with the pitch of the roof.

Roof sheathing thickness alberta.

Allowable spans for lumber floor and roof sheathing a b for si. If the spacing is greater than 1 4 install a layer of 3 8 minimum thickness apa labeled exterior grade plywood or osb over the wood planking. The typical thickness range for sheathing is 3 8 to 3 4 inch. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.

Cgsb ca cgsb 37 54 polyvinyl chloride roofing and waterproofing membrane national building code of canada 2005. Never attach roof sheathing with staples. Comes in standard 4 by 8 foot sheets is strong. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

Wallace stine and my250r11 e. When reroofing plywood or o s b. 8d ring shank nails should be used instead. In exterior walls add insulating sheathing to achieve a greater r value in your wall system.

Use the home depot app to locate products and check inventory. We ll take you to the exact aisle and bay. 1 inch 25 4 mm. Ready to find the supplies you need in your local store.

For new construction the roof decking shall be minimum 11 mm 7 16 thick o s b. 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. If you re in search of quotes for a roof sheathing job improvenet can put you in touch with up to four local contractors for free. 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. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Roof sheathing materials plywood. Most roofs will be sheathed in plywood at least 3 8 inch thick.

Or minimum 12 7 mm 1 2 thick plywood sheathing.