Frequently Asked Questions

Microposite Siding Products are available through approved building materials dealers. For a list of stocking dealers, please go to BlueLinx.

Microposite is priced at a premium to other wood siding alternatives, including vinyl and fiber cement, but less than other exterior products such as real wood, brick and stone.

Microposite Siding Products deliver six key benefits:

• Water resistance: Provides a highly effective defense against moisture.
• Workability: Lightweight and requires no special woodworking tools.
• Durability: Easy to maintain and fire-resistant, resists buckling, warping and insect damage.
• Green: Natural materials, distribution efficiency and low-energy manufacturing.
• Energy efficient: R-Value rating 3.5 times higher than fiber cement.
• Aesthetics: Natural wood grain pattern, and 7/16" thickness for deeper shadow lines.

For more about our benefits click here.

When available, a list of stocking dealers will be available on BlueLinx.com.

The thickness of our 7/16" board yields deeper, more pronounced shadow lines that mimic the look of traditional wood lap siding. Our microsphere technology helps boost our R-Value rating to 3.5 times higher than fiber cement and 1.5 times higher than wood.

Microposite siding products have been referred to as the next generation of siding products. Finally, there is a siding product that delivers superior performance in all key areas, such as product durability, aesthetics/appearance, and ease of installation. Microposite siding's main advantage is that being a composite product, it is water resistant which means no rotting or decay. It is also totally resistant to termites and other wood eating insects, and will not warp, buckle, crack, or split. Microposite also offers a natural wood grain pattern which gives our siding the look and feel of real wood. The ease of installation will allow the professional installer to focus more on the craftsmanship to deliver a truly beautiful exterior finish. Microposite's patented technology advances the performance of siding products. Take a look at our comparison chart to see how Microposite Siding compares to other premium siding products.

Microposite offers a "hassle-free" 50 year product warranty. Properly installed Microposite siding will not crack, rot, or delaminate. Microposite is non-combustible and resists damage caused by termites. The Microposite warranty claim process is simple and is structured for fast response to the homeowner. For more information, go to Warranty.

Microposite siding uses a patented closed-cell technology which results in a lightweight, water resistant and highly insulative product. The product is made from perlite (80%), which is a naturally mined mineral that is frequently used in building materials such as drywall, beams and columns, combined with urethane resins (15%) and fiberglass (5%).

It is no secret that there is a groundswell of concern regarding moisture penetration into exterior siding products and the problems this causes. Water intrusion is considered public enemy number one. It can lead to many serious problems from rot and decay to mildew and mold. Several previous siding product failures were directly related to water absorption which led to widespread rot and decay of the siding structure. Eventually, many of those products had to be taken off the market. Microposite Siding Products are  water resistant. Microposite's patented closed-cell composite structure eliminates water penetration, providing you with the water resistance you should expect and demand in a siding product.      

No, Microposite contains no hazardous materials.

Microposite Siding Products have been submitted for evaluation by the International Code Council (ICC). At this time, we cannot predict when we will receive our final product evaluation report.

Microposite is environmentally friendly. It's manufactured using a low energy, self-curing process. This patented technology allows for R-Values higher than most other siding products on the market. Microposite Siding Products don't contain any harmful substances. Additonally, the lightweight product allows for more product per truckload which means more efficient distribution.

The R(Resistance)-Value of a material indicates its resistance to heat flow and its effectiveness as an insulator against conduction. R-Values are commonly used to characterize thermal insulation materials in homes and buildings. R-Value is an important factor when considering the purchase of a siding product. Products with a higher R-Value provide greater insulative properties and reduce the energy costs of cooling and heating a home.

Microposite's R-Value is 3.5 times higher than fiber cement and 1.5 times higher than wood which means our technology creates a product that is very energy efficient

Because of its patented technology and closed-cell design, Microposite Siding Products are easily cut using a variety of standard installation tools and blades. Microposite produces no harmful substances when cutting. Whether you are cutting, drilling, or routing―the end result is a crisp, clean edge. To install, common fasteners such as 6D (6 penny) siding nail or an 11ga roofing nail are recommended. Nails must be corrosion resistant, galvanized (preferably hot dipped), or stainless steel to provide maximum service life and to prevent rust bleed.

Microposite Siding Products can be hand or pneumatically fastened. Pneumatic fastening is recommended. No pre-drilling is required even if product is installed in low temperatures. Please refer to Microposite Installation Instructions for full details.

As a better building practice, Microposite recommends the use of a weather resistive barrier to enhance the performance of the exterior envelop. In all cases, refer to local building codes for requirements on the use of weather resistive barriers.

Microposite Siding Products can be blind or face nailed in accordance with our published Installation Instructions. In general terms, blind nail applications conceal the fasteners for a more aesthetically pleasing result. Face nail applications are typically reserved for severe high wind conditions. Refer to published wind load tables or confer with an authorized Microposite representative with questions regarding specific application. Microposite board may be fastened to within 3/8" from the edge.

Any durable trim product can be used in conjunction with Microposite siding. Leave a 1/8" gap between Microposite boards and all trim, windows, and doors for easement. All gaps must be sealed, caulked, or flashed in a manner that prevents moisture intrusion or buildup. Trim should be thick enough such that the siding does not extend beyond the face of the trim. For 7/16" Microposite board, we recommend using a minimum 5/4" nominal width trim (1" true width).

No. Microposite comes ready for applying the final color coat. For long term durability concerns, please consult your paint supplier for their recommendations on the number of coats needed to ensure long term performance.

Yes Microposite Siding Products must have a finish coat applied within 180 days of installation. Use high quality acrylic latex finishes only.

This depends on the amount of direct exposure. Acrylic Latex protection varies in each location. Please contact your coating supplier for their recommendations.

Yes, when available, a list of stocking dealers will be available on BlueLinx.com.

No, Microposite siding cannot be stained.