Roof Boards Vs Plywood

As roofing contractors in seattle we are often asked why do we need plywood over our old solid sheathing.

Roof boards vs plywood.

The ability of plywood to return to shape after wetting makes it a lot less risky in this application and while a little more expensive that s still cheaper than having to replace a floor. This is why plywood is considered as the better option for roofing. Plywood vs mdf vs particle board vs osb pros cons. Osb is cheaper than plywood by about 3 to 5 per panel.

The keyword here is solid it used to be standard to use shiplap 1 boards tongue groove or other boards for the roof deck. Contractors often prefer to use osb because of the significant. The edges may also swell during this time creating small yet visible ridges on the roof where the boards meet. When sheathing a roof.

These 8 to 12 inch wide boards were nailed together tight. Both cdx plywood and osb have advantages and disadvantages when it comes to plywood for roofing. To begin with let us try to understand more about each of these four types of wood. Osb vs plywood screw holding.

According to dmitry lipinskiy owner of roofing insights there is a 5 chance that older homes will need a completely new decking system when their roofs are repaired. Is plywood or osb best. Severe weather 1 2 in common douglas fir plywood sheathing application as 4 x 8. In 2001 oriented strand board surpassed plywood in terms of square footage produced.

In an ideal world you would schedule your roof construction during a dry period if possible. Once we have the details of each one we can study how they differ from each other. Even though the wood is porous it is more natural and it can dry quickly. Home osb is about 700 less expensive compared with plywood if used as the subfloor sheathing and roof decking.

Osb is now used for about 70 percent of all floor wall and roof sheathing in north america. At the end of the day what kind of plywood should you use for your roof. When the roofing material dries quicker it can be used to make sure that the roof will stay firm for a longer time. Overall plywood is a little bit better for roofing.

For a typical 2 400 sq. Cost of plywood vs osb.