For example: 18 shake bundles 12/12 should cover 100 square feet at 7 1/2 exposure.Simply so, what is the proper distance between wood shakes?
-inch minimum and ?-inch maximum; and. the IRC recommends ?-inch minimum and ?-inch maximum.
Also, what is the weather exposure for 3 ply #15 roofing? Trade 4
| Question | Answer |
| what is the weather exposure for 3 ply number 15 roofing? | eleven and one third inches. formula a full roll is 36 inches wide but allow 2 inches for the overlap at the seems. Divide the remaining 34 inches by the number of plies so 34 divided by 3 equals 11 and one third |
Likewise, what is the maximum exposure of 24 wood roofing shakes?
Machine-sawn, they feature smooth surfaces on both sides. The width is 4 inches at minimum, and a bundle of four together will measure about 2 inches thick. 24-inch royal shingles and shakes can be installed with a maximum exposure of 7.5 inches — and that is without any felt interlay between the courses.
How do I know if my cedar shake roof is bad?
If you have an aging cedar shake roof, make sure to check for leaks regularly after heavy rains or severe storms. Look for discoloration on your ceiling or walls, or go up into your attic and look for water on the inside of the roof or discolored plywood. These can all be signs of water intrusion.
What is roof exposure?
Definition of shingle exposure. Roof shingle exposure amount is the portion (measured in inches or cm) of asphalt shingle that remains exposed to weather as successive courses of shingles are installed up the roof slope.How do you install cedar shake roofing?
Starting Right - Install spaced sheathing. Cedar shingles must always be nailed to sheathing for ventilation.
- Install drip edge and valley flashing material.
- Install a starter course at the eaves of the roof, allowing a 4 cm (11/2 in.)
- Install the first course of wood shingles on top of the starter course.
What is a shake shingle roof?
A shake is a basic wooden shingle made from split logs. Shakes have traditionally been used for roofing and siding applications around the world. Higher-grade shakes are typically used for roofing purposes, while the lower grades are used for siding.How much do you overlap cedar shingles?
Leave a gap of approximately 1/8” to 1/4” (0.3 to 0.6 cm) between neighboring shingles to allow for expansion due to moisture. Joints of successive courses must always be offset by at least 1 1/2” (3.8 cm) to prevent water build-up. Treat shingle imperfections the same way.What goes under cedar shingles?
The order is: sheathing, pink paper, black paper, pink, black, shingles. There is no lath; the shingles are right against the black paper. There is no evidence of water damage to the sheathing, but there are countless layers of paint on the shingles too (which may have helped prevent water penetration).How thick are cedar shakes?
Thickness shall be nominal 5/8" or ¾": with a minus tolerance of 1/16" in 10% of the bundle. Limited defects are allowed 9" above the butt in 18" shakes and 12" above the butt in 24" shakes. Unlimited flat grain is allowed. Sapwood is restricted to 1" in width for the first 10 inches.What is the minimum pitch for cedar shingles?
The minimum roof pitch for shingles and shakes is 14 degrees. At these low pitches (14-22 degrees), care must be taken and a water impermeable, vapour permeable underlay MUST be used underneath, with a ventilated space between the membrane and the shingles.What is #15 felt paper?
The most common product is #15 felt. Before the oil crisis, felt weighed about 15 pounds per square (one square = 100 square feet) and hence the asphalt-impregnated felt was called "15#" and "15-pound felt". Modern, inorganic mats no longer weigh 0.73 kg/m2, and to reflect this fact the new felts are called "#15".How many nails are in a sheet of plywood?
You should use 3-inch ring shank nails to allow at least 1 1/2 inches of truss penetration when working with lumber slats. You can use 2-inch galvanized nails when working with plywood or oriented strand board (OSB) sheets, which measure 4 feet by 8 feet.Are cedar shake roofs good?
Cedar shakes are fairly easy to install and maintain. Cedar shakes are attractive, durable and resistant to insect activity. They typically last longer than shingles and many other types of roofing. They can be expected to last for between 20 and 30 years.What is the life expectancy of a cedar shake roof?
The average lifespan of a cedar roof is approximately 30-40 years. Climate, exposure and proximity to salt water may also affect the longevity of a cedar roof. It is recommended that you investigate the lifespan of cedar roofs in your area. Generally the lifespan of a shake roof is slightly longer.What does a cedar shake roof cost?
On a 3,000-square-foot roof, homeowners pay between $16,000 to $20,000 to install cedar wood shake shingles. It works out to $5 to $7 per square foot. Shake roofing prices out between $500 to $700 for every 100 square feet, or “per square.” This includes labor and materials.How much does a cedar shake roof cost?
Cedar Shake Roof Cost The average price range to install a 3,000-square foot shake roof is between $18,000 and $20,000, or about $600 to $670 per square. Low cost for installation is around $16,000 and high cost is about $27,000.How much do wood shingles cost?
Wood shingles are slightly less pricey at $6.50 to $10.50 per square foot or $650 to $1,050 per square, installed. For comparison, asphalt roofing can cost as little as $3.50 to $5.50 per square foot or $350 to $550 per square, installed. 
