Plank Roof Decking

It concluded that a roof is a unified product comprised of all its component parts and materials including.

Plank roof decking.

Roof decks on homes built before 1970 are often 1 8 fir pre plywood shiplap. Solid sheathing most new homes built after the mid to late 80 s typically have solid roof sheathing. Standard structural decking patterns are 2 nominal tongued and grooved t g and 3 and 4 double t g products available with vee or eased edges to meet discriminating architectural requirements. There are three types of wood roof decks.

Until the 1940s exterior grade plywood was not available. And shingles 7 it reasoned that the wood shingles which served as the decking were an integral component of the roof and that the cost to replace the wood shingles was a covered loss. Spaced or skip decking many older homes in older. Tongue and groove plywood or osb sheathing plank sheathing.

Roof decking comes in at least five different types. Structural decking also known as roof decking should not be confused with lumber intended for residential and non residential outdoor decks. Those include the plank step plywood oriented strand board osb and tongue and groove boards. On older homes planks were often spaced for wood or slate roofs with wider exposures than the standard 5 inch tab on asphalt shingles.

Primarily used for floors and roof decks hollow core is a precast slab of prestressed concrete designed for greater structural efficiency. Since the boards used for shiplap were manufactured here in the pacific northwest it was still cheaper than plywood up through the 1960s. Hollow core plank is a cost effective and versatile solution for almost any building project. Molin concrete offers two types of hollow core plank.

As a result at least one but often many of the shingle nailing lines end up falling smack between boards or so close to the edge that the nails lack holding power.