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How far should roof sheathing overhang fascia?
Ideally the sheathing should be on top of the fascia without extending beyond it. Guesswork can create a situation in which it extends too far and it interferes with flashing installation, or you have to cut it. If the fascia is to be one layer of 1x, I overhang the sheathing 5/8.
What is the minimum thickness of roof sheathing?
Sheathing must be a minimum of 19/32-inch thick. Never affix roof sheathing with staples; 8d ring-shank nails need to be used instead. The normal thickness range for sheathing is 3/8 to 3/4 inch.
How do I plywood my own roof?
Take two 2x4s long enough to extend above the roof line by about 2′. Attach another section of 2×4 across them to hold them together at a height that will allow you to stack the plywood on it so that the top of the plywood sticks up above the top of the jack stand at the roof line.
Can plywood be used for roofing?
Most Common Thickness For rafters spaced 20 or more inches apart, 1/2- or 5/8-inch plywood is recommended. The most common rafter spacing is 24 inches, and 5/8-inch plywood is recommended for that. It will support roof loads for most situations and is the standard for most roof applications.
What goes on first roof or fascia?
Fascia and soffit are installed after the roof installation is finished. It is ideal that soffit and fascia materials be installed before you place tiles or any other type of roofing material on the roof.
What do you use to sheet a roof?
Oriented Strand Board (OSB) or plywood can be used, although plywood will provide higher nail head pull-through resistance. Use panels rated as “Exposure 1” or better. Install sheathing panels according to the recommendations of the Engineered Wood Association (APA). Use panels no smaller than 4 feet long.
Should sheathing overlap fascia?
When sheathing a roof, the first step is to snap a line so that the first row goes on straight. But if you snap it at 40 inches, then the sheathing will not project over the subfascia or true fascia. This opens the door to the possibility of water damage by letting gravity work against you. Don’t do that.
Which is better for roofing OSB or plywood?
Plywood Holds the Moisture Advantage Over OSB When plywood gets wet, it tends to swell. OSB takes longer than plywood to get saturated, but also takes much longer to dry out. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks.
Is OSB better than plywood?
Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists. However, nail-holding ability controls performance in shear wall applications.5 days ago.
What thickness OSB should be used for roofing?
Standard roof sheathing thickness is ½” to ⅝” thick. If you are using OSB for your roof deck, then ⅝” is the recommended thickness. For plywood, which is slightly stronger than strand board, ½” thick is appropriate. Another factor is how far apart your trusses or rafters are spaced.
Should you use tongue and groove OSB for roof sheathing?
Tongue & Groove Boards T&G roof decking, however, looks classy and rich. In fact, T&G boards are most frequently used when the sheathing is visible from the inside such as in cathedral ceilings or in some cabin-style homes, especially if the span of the rafters is greater than 2 feet.
How many sheets of plywood do you need for a roof?
Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. If your roof area is 1,600 square feet, 1,600 divided by 32 will mean you need about 50 sheets to cover the roof.
What type of plywood is used for roof sheathing?
CDX Plywood A special grade of plywood called “CDX” is a popular choice for roof sheathing. No, the “X” in CDXplywood does not stand for “exterior.” Rather, it references the kind of glue used to bond the layers of veneer together. CDX plywood can withstand temporary exposure to rain and other moisture sources.
How do you lift a 4×8 plywood?
Lean the plywood sheet on its long edge and slip the rope around the two bottom corners. Then reach over the sheet, grab the rope in the middle and lift, steadying the sheet with your free hand. With the 4×8 secured between your arm and torso, it’s easy to walk without losing your balance or straining a muscle.
Is 3 ply or 4 ply plywood better?
So what is the difference between 3-ply and 4-ply plywood? 3-ply plywood is the standard for internal-use plywood, featuring 3 layers of wood. While 4-ply plywood is available, it is very rare, and 5-ply plywood would be a better choice if you’re looking for increased structural ability compared to a 3-ply.
How thick should plywood be for a shed roof?
Plywood thicknesses for roofs start at 3/8” in areas with light load requirements on rafters at 16” centers. Thicknesses of 1/2 to 5/8 inch are common with rafters spaced at 24” centers. For heavy load rated areas, 3/4-inch-thick plywood is recommended, regardless of rafter spacing.
What’s the best wood to use for a roof?
Cedar has earned a reputation for being strong, flexible, and weather resistant – qualities that make for an effective roofing shingle. Among roofing shingle manufacturers, cedar is the go-to material, all thanks to its durability.
What is the trim under the roof called?
Soffit: The underside of the eaves, or roof overhang, which can be enclosed or exposed.
What is difference between fascia and soffit?
An exterior soffit is located on the span beneath the rafter tails, while the fascia is the exposed horizontal band you see at the end of the rafters. These architectural elements found along the eave area do more than just add visual interest and give a finished look to your home.
What is under a soffit?
Soffit. The soffit board is tucked away under the fascia board. It is usually the board that you see most of from street level. The soffit can be ventilated to allow the flow of air into the roof area. Alternatively, ventilation can be provided over the top of the fascia board.
