Table of Contents
What do I put under cedar shingles?
Synthetic underlayment: With modern improvements and manufacturing techniques, synthetic underlayments are now considered the best material installed under cedar shingles. Synthetic underlayments are made from polyester, fiberglass and polypropylene.
How much do you overlap cedar shingles?
Cedar shingles should lap at least 18 cm (7 in.) over each side of valley flashing.
Can I use roofing nails for cedar shingles?
Correct Nails for Cedar Shingles The ideal nail types for cedar shingle roofing projects include corrosion-resistant varieties like stainless steel and hot-dipped galvanized. At Cedar Roof Coatings, we advise against the use of plain steel nails to keep the cedar roofing stain-free over time.
How do you bend cedar shingles?
Ten or 15 minutes of steaming will soften up shingles. Once they’re soft and you’ve bent them into the shape you want, douse them with cold water and they’ll hold that form.
Do cedar shingles need underlay?
While cedar is one of the most versatile and durable materials you can use to build your roof, no roofing job is complete without a proper underlayment for protection. Underlayment is placed right over the roof deck beneath everything else, including insulation.
Can I use Tyvek under shingles?
DuPont Tyvek Protec 120 Roof Underlayment is an engineered synthetic roofing underlayment with industry-leading walkability. It is ideal for slopes 2:12 or higher and can be used under a variety of roofing materials, including asphalt shingles, cedar or metal roof cladding.
What is the difference between cedar and cedar shingles?
Appearance – Cedar shingles have a smooth and uniform look that spans the entire roof surface while cedar shakes have a more rugged appearance because each piece looks a little different than the rest. Cedar shakes are split off while shingles are sawn smooth on both sides and cut tapered.
Do you need to treat cedar shingles?
Without treatments, cedar shakes can degrade over time, with constant exposure to the sun’s UV rays, the elements, and water, of course. It also means that the cedar shakes can suffer from fungus and algae growth without proper treatment. Most importantly, without treatment, cedar shake shingles can catch on fire.
What is better red or white cedar shingles?
Overall, red cedar shingles are more energy efficient and environmentally friendly than white cedar shingles. This is partly due to the red shingles’ unique cellular composition that results in the capturing of small pockets of air and improves insulation capabilities.
Where do you nail cedar shakes?
When it comes to the actual installation of the shakes, you may want to avoid using a nail gun completely. Instead, you should install each shake by hand, ensuring you use two nails that are four inches from the top of the shake, and one inch from the sides.
Is it better to nail or staple shingles?
Fasteners for asphalt shingles should be roofing nails or staples. Both nails and staples have sufficient strength to resist small uplift load on the shingles, as long as the tabs remain sealed. If staples are properly installed, they offer nearly the same wind resistance as nails.
Can you use screws on cedar siding?
Do not use common nails or screws. Use of these will lead to eventual bleeding of rust over time, causing an unsightly stain in the cedar siding. Use only hot dipped galvanized, aluminum, or stainless steel nails or screws when fastening Western Red Cedar.
How many nails are in a square of cedar shingles?
Most shingle manufactures recommend using four nails per shingle on the main area of your roof and five nails per square in the first row of roofing. This adds up to an average of 320 nails or 100 square feet.
How many cedar shingles do I need?
A standard bundle of white cedar shingles covers 25 sq. ft (2.3 m2) if the exposure is 5 in (12.5 cm). Cedar shingles are measured in squares, 1 square = 4 bundles.Calculating the right quantity. Width of exposure Quantity Area covered 4 in (10 cm) 1 square 80 ft 2 (7.3 m 2 ) 5 in (12.5 cm) 1 square 100 ft 2 (9.3 m 2 ).
Can you use house wrap under shingles?
Housewrap, a common type of weather-resistive barrier (WRB), is installed between the cladding layer and the sheathing, while roofing underlayments go directly under shingles or other roofing material, forming a second line of defense against the elements.
Can you install cedar shakes over siding?
With some knowledge and skill, shakes can also be applied over existing siding. from Cedar Shake and Shingle Bureau Exterior and Interior Wall Manual. The shakes or shingles can be applied directly over the existing siding; however, rain screen application is necessary over brick, stucco, and foam sheathing.
What is the minimum pitch for cedar shingles?
The minimum roof pitch for shingles is 14 degrees and the minimum pitch for shakes is 20 degrees with a gauge of 190mm. 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 under cedar shake roof?
Under the Cedar Shakes are furring strips. Furring strips are 4” wide boards that are spaced apart several inches, to hold up cedar shakes while allowing them to breathe.
Are cedar shingles waterproof?
Are cedar shingles waterproof? Cedar wood shingles are prone to mold, mildew, and insects. It is important to note that the wood on a cedar roof is not intended to be waterproof, and is therefore quite susceptible to wind-driven rain. Any natural product exposed to water is vulnerable to mold, mildew and erosion.
