Roof Sheathing Designs

For this type of wood it is most often seen when building a hostel in vietnam you can refer to alo nha tro for more details.

Roof sheathing designs.

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. Staples shall be not less than 21 gage. Common roof sheathing applications and installation recommendations are described in the related publications listed at right.

Fasteners for asphalt shingles shall be galvanized stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 2 67 mm shank with a minimum 3 8 inch diameter 9 5 mm head of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 1 mm into the roof sheathing. Plywood sheathing delivers outstanding rigidity strength and versatility and is an excellent choice for. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. Table m9 2 1 of awc s companion document the asd lrfd manual for.

A combination roof is quite literally a combination of types of roofs. For prescriptive roof sheathing applications provisions of the american wood council s awc s wood frame construction manual wfcm figure 2 1g or 2 1h can be followed. Slate and slate type shingles. It adds proven performance and durability to new homes room additions and renovations.

Correct installation of roof sheathing will ensure the best performance and help reduce complaints and callbacks. Blocking of unsupported edges may be required near gables ridges and eaves follow design drawings. Roof sheathing or decking is one of those elements. Often incorporating two or more designs for aesthetics and practical reasons combination roofs can feature a range of styles.

Sheathing layout install sheathing panels according to the recommendations of the engineered wood association apa. For all other conditions the basic capacity checks of awc s national design specification nds for wood construction chapter 9 apply. Unless otherwise indicated by the panel manufacturer leave a 1 8 inch gap. A clerestory and hip roof for example.

It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads. Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction and every piece meets the highest grading standards for strength and appearance. Plywood and oriented strand board osb are used in roof sheathing systems ranging from simple single family residences to large commercial buildings.