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Installation Guide

ManualsBrandsUnbranded ManualsDimensional LumberRough Green Western Red Cedar Lumber (Common: 2 in. x 4 in. x 8 ft.; Actual: 1.75 in. x 3.5 in. x 96.0 in.)
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3. JOB SITE STORAGE
Until installed, Western Red Cedar siding needs
protection from direct sunlight, water saturation,
snow, ice, dirt, and other elements. Store the siding
at and off the ground on stickers and a vapor
barrier so that moisture is not absorbed through
the bottom boards of the stack. Protect with a
waterproof covering elevated in the center so
that water does not pool on the cover. Do not
completely seal the bundle, as good air circulation
is required. Ideally, the siding should be stored in
an enclosed building such as a garage prior to use.
4. FINISH SIDING PRIOR TO INSTALLATION
Before installation (job site), applying a nish to all surfaces (including ends) is recommended. Factory applied
nishes are best. They ensure the best performance of the nish. The type of coating will be determined by nal
nish and look selected. The nish protects the wood from moisture absorption and UV degradation, helps
prevent staining caused by mildew and extractives and will increase the service life of top coats.
Recommended Procedures for Finishing Western Red Cedar Siding
More information about finishing is available on the WRCLA’s website and in the “How to Finish Western Red Cedar” publication.
5. FIELD CUTS
Regardless of the time of the year of the installation, all eld cuts must be nished. The end grain of all wood
products absorbs liquids up to 250 times more rapidly than other wood surfaces. 100% acrylic-latex primer is
acceptable as long as it is able to properly cure according to the primer manufacturer’s instructions. However,
where temperatures drop below 50 degrees Fahrenheit either during application or within the curing period, use
an alkyd oil wood primer to coat end grain exposed by jobsite cuts. Siding with end cuts coated with alkyd oil
primer can be installed before drying without compromising the coating’s effectiveness. Above 50 degrees, a high
quality 100% acrylic-latex primer will sufce to coat exposed end grain if allowed to dry before installation. With
either primer, follow manufacturer’s recommendations.
6. FASTENERS
Stainless steel nails are the best choice, especially if the siding is to be nished with transparent, semi-transparent
stain or bleaching oil. Use No. 304 stainless for general siding applications and No. 316 for seacoast exposures.
BEFORE YOU START
WESTERN RED CEDAR
SIDING
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