Tongue And Groove Roof Decking Detail

Tongue and groove wood decking shall be installed with tongues up on sloped or pitched roofs and outward in direction of laying on flat roofs.

Tongue and groove roof decking detail.

In my experience the need for tongue and groove or edge clips is determined by the thickness of the roof sheathing and the spacing of the rafters. Tongue and groove porch flooring is another beautiful screw free decking material option for areas that are fully covered by a roof. When random lengths are furnished each piece must be. Structural tongue and groove wood decking is the perfect complement for a timber structure.

Plywood or osb sheathing. Say what you want about them but osb and plywood do not offer a very attractive finished look. Tongue groove structural decking structural decking also known as roof decking should not be confused with lumber intended for residential and non residential outdoor decks. It is machined with a single tongue and groove a v joint face and is end matchedallowing the use of random lengthpieces.

The other one is plywood. If right now you are thinking about which deck choice to add to your new roof design or to replace the old or damaged one you are in the right place. Tongue and groove decking provides the customer with an outstanding solution for roof and subfloor structure where exposed to the lower level. Useful in an old fashioned country cottage or cabin decor.

There are three types of wood roof decks. 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. This is usually 2 6 with a tongue formed on one edge of the board that fits snugly into the groove in the board adjacent to it. It is to be laid with pattern faces down and exposed on the underside.

Some use clips as convenient spacers. Decking is available in a variety of species thicknesses and lengths. For 5 8 or thicker roof sheathing on 16 o c. The main reason to use tongue and groove boards these days is appearance from beneath the roof.

Rafters it shouldn t be an issue. Each piece shall be square end trimmed. Tongue and groove boards were used for decades prior to the widespread adoption of plywood as a sheathing material in the 1950s and 1960s. Because tongue and groove porch flooring has no gaps between the deck boards it is imperative that the deck be pitched away from the house or structure to drain any standing water off the deck surface.

Tongue and groove roof decking especially the one from solid wood boards is one of the two most common choices for residential use right now. Also available are solid and laminated versions of many decking species. A sample of solid 1 grade 2 x 6 edge vee one side ev1s douglas fir decking.