What Is Roof Sheathing Definition

Roof sheathing also known as roof decking is a strong layer of wood boards that are fixed to your roof s joists and trusses.

What is roof sheathing definition.

Roof sheathing basics the skeleton of a roof is formed with rafters or trusses generally spaced 16 inches or 24 inches apart from the center of one rafter to the center of the next. Plank sheathing is generally susceptible to distortion thanks to weather changing. Definition of sheathing in construction the covering of a structural system on the wall roof ceiling etc. Your roofer will attach your shingles to these squares or planks of wood.

Roof sheathing is structural providing lateral bracing of roof framing members and it carries both live and dead loads from above to the rafters and trusses below. Sheathing is normally plywood plyscore fiberglass panels insulation board etc. The skin of the structure is created with the use of sheathing which can be made up of a variety of materials. Roof sheathing or sheeting the wood panels or sheet material fastened to the roof rafters or trusses on which the shingle or other roof covering is laid.

8d ring shank nails should be used instead. The trusses and beams of the roof give the roof its initial pitch and structure and then the sheathing is applied so the actual underlayment and roof covering can be applied. Wood shingles tend to be expensive when it comes time to tear down and replace them so using re sheathing over the entire roof is a far cheaper method. Roof sheathing is the material that goes on top of your roofing structure including the trusses and beams that the roofing system is constructed on.

These boards can be installed in two different ways and based on the installation method we can differentiate between two types of roof sheathing. Roof valley the v created where two sloping roofs meet. Never attach roof sheathing with staples. Plank sheathing meanwhile is typically something that was used before plywood.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Similar to exterior wall wood sheathing roof sheathing includes plywood oriented strand board and waferboard. Sheathing protective covering consisting for example of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior. It is most commonly made out of plywood in the form of planks or roof boards.

To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed.