Thicknesses range from 5 16 to 3 4 inch and the proper one to use.
Osb roof sheathing thickness canada.
Multiply the length of the roof in feet by the width of the roof in feet to find the area of the roof in square feet.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Loads will vary with the pitch of the roof.
Most roofs will be sheathed in plywood at least 3 8 inch thick.
For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load.
The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.
Thickness or rating 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.
Once the area is known divide by the area of a 4 8 sheet to find how much sheathing is needed.
Price match guarantee free shipping on eligible orders.
The ontario building code thickness or rating 9 23 15 7.
Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8.
That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.
Find the area of a roof.
Never attach roof sheathing with staples.
Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.
The typical thickness range for sheathing is 3 8 to 3 4 inch.
In canada osb panels are manufactured to meet the requirements of the csa o325 standard.
8d ring shank nails should be used instead.
If you have multiple sections of roof find the area of each and add them together to find the total area.
For pricing and availability.
For heavier loads a 40 20 rated panel 19 32 or 5 8 will support a 130 psf live load and 48 24 rated panels 23 32 or are good to175 psf.
The wafers or strands used in the manufacture of osb are generally up to 150 mm 6 in long in the grain direction 25 mm 1 in wide and less than 1 mm 1 32 in thickness.
Shop osb top brands at lowe s canada online store.
Compare products read reviews get the best deals.
