How to Install Fiber Cement Shake Siding

Before you install fiber cement shake siding, review and ensure compliance with all local building codes and regulations regarding the selection and proper use of sheathings, water-resistive barriers, flashings and other building materials and systems.

Individual Shakes must be installed over wall construction with framing spacing 16″ to 24″ o.c. (max.) and a minimum of 7/16″ OSB or 1/2″ plywood sheathing. Use double hot-dipped galvanized or stainless steel fasteners. Do not use electro-galvanized fasteners because they corrode faster, especially in coastal areas.

Starter Strip You can use fiber cement, vinyl utility trim, or PVC skirt board as a starter strip. When starting installation at ground level, establish a straight, level chalk line to guide the positioning of the starter strip and the shake starter course.

1. Find the lowest point of the sheathing and make a mark that is 1″ above the lowest point. The bottom edge of the siding will be 2-1/4″ below the mark you just made. Make sure this point is high enough to ensure that the shakes are installed at least 6″ above the finished grade or 1″ above surfaces where water may collect.
2. From this mark, snap a level chalk line to the opposite end of the wall. Repeat this step around the entire house.
3. Using the chalk line as a guide, attach a starter strip.

Starter Course To ensure that the keyways are fully backed by fiber cement, install the first course of Individual Shakes over a full starter course of 9-1/4″ lap fiber cement siding. If you are transitioning from less than 9-1/4″ Lap Siding to Individual Shakes, use 9-1/4″ Lap Siding as your starter course at the transition. If you are starting the wall with Individual Shakes, place a starter strip under the starter course.

Using the starter strip as a guide, attach the starter course so that the bottom edge will project at least 1/4″ below the bottom edge of the starter strip.

• Place the fastener 1″ from the top of the panel and no closer than 3/8″ from the edge. Drive the fasteners a minimum of 1-1/4″ into the structural framing, but do not over-drive the fasteners and do not place the fasteners in the center, unsupported area of the siding.
• Fasten from one end of the panel to the other.

First Course of Individual Shakes

1. Install the first shake with the bottom edge slightly below the starter course. Be sure to maintain a 1/8″ gap at all trim locations. Always caulk between the siding and the trim.
2. Place fasteners 1″ from the side edges and 9″ up from the bottom of the shake.
3. Continue installing shakes in a random manner, mixing the 6-1/4″, 8-1/4″ and 12″ shake sizes.
4. Maintain a 1/4″ keyway gap between shakes. Use the edge of a shake or a piece of 1/4″ plywood as a jig to maintain even spacing between Individual Shakes.

Second and Subsequent Courses

1. Select and position the shake 8″ up from the bottom of the previous course, such that course-to-course keyway spacing is no closer than 1-1/2″.
2. Place fasteners 1″ from the side edges and 9″ up from the bottom of the shake. Fasteners must penetrate the top of the shakes of the previous course.
3. Continue installing shakes in a random manner, mixing the 6-1/4″, 8-1/4″ and 12″ shake sizes to maintain the 1/4″ keyway gaps and 1-1/2″ minimum keyway spacing.
4. Individual Shakes are designed and installed to create a straight-edge, 8″ exposure finished application. Alternative applications, such as staggered edge, can be achieved with the Individual Shakes following the basic steps noted above. However, the exposure should never be less than 6-1/2″ and the fastening location should be kept 9″.

Deck Post Caps Are Available in Multiple Colors

Decorative Post Caps and Trim Add some personality to your custom deck with our expanded selection of post accessories provides the elegance of metal without the unwanted side effect of corrosion. Also available is a complete line of coated PVC post accessories — decorative post caps, solar post caps and post trims in five metallic finishes: Antique Brown, Antique Copper, Antique Gray, Antique Gold and Patina. All coordinate with 4″ x 4″ post sleeves.

New Exterior Trim Products Available

New products and finishes broaden your choices in cellular PVC trim.

6″ and 8″ Fiber Cement Skirtboard Manufactured with a unique beveled lap that automatically sets the first course for fiber cement siding installation, cellular PVC skirtboard can come into direct contact with the ground or concrete. Skirtboard ensures that fiber cement is installed at 6″ minimum clearance above the finished grade and can be used as a transition board between shakes and lap siding. With its patent-pending DualStart™ design, it’s reversible and flippable to either TrueTexture™ woodgrain or smooth finish. Skirtboard is available in 12′ lengths, 1″ and 5/4″ thicknesses, and 6″ and 8″ widths.

4″ J-pocket Trimboard with Cut-out Available in smooth/smooth or woodgrain/smooth texture, this new window trim features a cut-out that allows trimboards to lie flush around windows and doors with built-in nail flanges, taking the work out of making perfect miter cuts at the corners.

Column Wraps Square column wraps come pre-cut, pre-mitered, and pre-assembled to easily wrap around existing load-bearing 4″x 4″ or 6″ x 6″ porch posts to create a low-maintenance porch column. Available 8″ x 8″ and 10″ x 10″ square, the 9′ wraps come in a smooth finish and coordinate with any EverNew® vinyl or composite railing system. Choose from either Classic or Estate cap/base trim sets.

Satin Finish Profiles Our great profiles are now available with an enhanced satin finish that allows for improved paintability. The current glossy profiles will be phased out during the first quarter of 2012.

Beadboard with TightLap™ Featuring both a larger lap and traditional groove, the new Beadboard with TightLap™ delivers faster installation and a tight fit for better hold and a larger concealed nailing area. The 2TL is 1/2″ x 6″ x 18′, while the 3TL measures 1/2″ x 8-1/2″ x 18′. Both sizes feature a reversible smooth surface with two attractive repeat patterns.

New 2012 Colors in Fiber Cement Siding

New products and services for 2012.

Enhanced CertainTeed ColorMax® Stains will be available from all fiber cement manufacturing facilities. The three-layer ColorMax system includes our exclusive FiberTect® primer/sealer for protection against moisture, ColorMax base coat to further enhance resistance to weather and ColorMax semi-transparent coat that enhances the deep, natural grain pattern of WeatherBoards to create the rich look of stained wood.

ColorMax® Stains are available on:

• Perfection Shingles
• Random Square Straight Edge Shakes (7″ exposure)
• Random Square Staggered Edge Shakes
• 6-1/4″, 7-1/4″, and 8-1/4″ Lap Siding
• 12″ and 16″ Solid and Perforated Soffit
• 5/4″ trim in 4″ x 12′ and 6″ x 12′

Lap siding is offered in full and half units. Shapes, soffits and trim are offered in full and micro units.

In addition, we are adding four of our most popular CertainTeed vinyl siding colors to our Custom Color program: Pacific Blue, Cypress, Flagstone and Forrest.

New 2012 Colors in Vinyl Siding

The New Year brings new colors and products.

Seagrass is the newest “It” color, and we’re offering it in our most popular panels and accessories:

• Cedar Impressions® Shakes and all Vinyl Carpentry® accessories for Cedar Impressions
• Monogram® panels and all Vinyl Carpentry accessories for Monogram
• T 3-1/3″ InvisiVent® Soffit and Vertical Siding
• Universal Soffit and Vertical Siding: T-4″ solid and fully vented soffit

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