On older homes planks were often spaced for wood or slate roofs with wider exposures than the standard 5 inch tab on asphalt shingles.
Plank roof decking.
There are three types of wood roof decks.
Roof decking comes in at least five different types.
Plank decking in older homes plank decking may have been used for the roof decking substrate.
Since the boards used for shiplap were manufactured here in the pacific northwest it was still cheaper than plywood up through the 1960s.
Molin concrete offers two types of hollow core plank.
Structural decking also known as roof decking should not be confused with lumber intended for residential and non residential outdoor decks.
Solid sheathing most new homes built after the mid to late 80 s typically have solid roof sheathing.
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.
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.
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.
Those include the plank step plywood oriented strand board osb and tongue and groove boards.
Until the 1940s exterior grade plywood was not available.
Roof decks on homes built before 1970 are often 1 8 fir pre plywood shiplap.
It concluded that a roof is a unified product comprised of all its component parts and materials including.
Tongue and groove plywood or osb sheathing plank sheathing.
There are two most common features of the wooden t g roof deck type that you can use to identify it.
Spaced or skip decking many older homes in older.