Old Roof Decking

Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood.

Old roof decking.

Roof sheathing the material nailed to your trusses or rafters to which your roofing is attached is your roof s workhorse. If the deck is sound it may be possible to treat the deck much like concrete by priming the surface adhering thermal insulation and installing a new roof membrane. Why re sheet over shiplap. We knew that this old house had significant gaps in the wood p.

Most western washington residential homes during this time were built with shiplap roof decks rather than plywood. Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete. Typically plank decking material is either 1 x6 or 1 x8 lumber. If one is considering mechanically fastening a base.

Today a shiplap roof is usually 60 years old. It s important to know what kind of a substrate is underneath the wood shakes before removing. In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart. The anchor of the system that keeps.

Wood shingle are expensive so when these roofs need to be torn off and replaced it is cheaper to resheath the entire roof and go over it. Again if this type of decking is discovered during the tear off of the roof shingles a thorough inspection must be made to make sure that it is in good overall condition and that the gaps between the individual. After the 1960s the predominant residential roofing substrate became 1 2 cdx plywood. The thickness of plywood used for roof decking depends on the roof slope the spacing of rafters and the weight of other material to be put over the decking as well as the design load the.

This guide was developed and edited for old homes from original material in the u s. Housing and urban development hud rehab guide. Plywooding over old roof deck the house was built in 1953 it is a rancher in 1987 when i did her roof for her after my parents just moved in there was 3 coats of shingles on it we thought 2.