Roof Plywood Thickness Pennsylvania

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

Roof plywood thickness pennsylvania.

It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal. It adds proven performance and durability to new homes room additions and renovations. You can get plywood sheets with a length of up to 10 feet. You might be tempted to choose a inch thickness although it s unnecessary in most cases.

1 inch 25 4 mm. Sheathing should be a minimum of 19 32 inch thick. Plywood sheathing delivers outstanding rigidity strength and versatility and is an excellent choice for. Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction and every piece meets the highest grading standards for strength and appearance.

Although specialty plywood can have any number of plies above three most plywood is categorized as 3 ply 5 ply or multi ply. The standard width is 4 feet. In this case plywood should be a minimum of 3 8 inch thick. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.

However you may need to consider bolstering the plywood thickness for a roof that has a higher load. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Loads will vary with the. 8d ring shank nails should be used instead.

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. It is about 2 to 3 millimeters thick and is generally used indoors since it looks more decorative than thicker plywood boards. 3 ply is one of the most common types of plywood.

Never attach roof sheathing with staples. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.