Your source for Replacement Siding in Metro Denver and Northern Colorado. Fiber-Cement and Hardboard siding products in stock!
Different areas of the country use different types of siding. Here in the Colorado area, Composite Siding or Fiber-Cement sidings (cement with fiberglass strands to reinforce) are becoming more and more popular.
However, in the past, Hardboard sidings were used most commonly. Hardboard siding uses essentially sawdust and resins to form various patterns to use.
Composite Siding comes in “lap” and “panel”.
“Lap” sidings are in strips or individual board sizes ranging in width from 4” to 16”.
“Panel” refers to sheets (generally 4×8 or 4×9 sizes) in plywood, wafer board, fiber-cement or hardboard versions. On existing construction, siding is the hardest item to match to pattern and size.
Hardboard Sidings are basically a mix of sawdust and resins/epoxies to obtain a particle type of board. These are molded to meet a particular pattern and are generally always primed at least on the exposed side. Those patterns generally mimic what wood boards would look like under the same type of pattern/application.
A variety of manufacturers now produce trim boards in normal board sizes for trim that are made of the same types of materials, also all primed. Trim boards generally come in both “4/4” (3/4”) and “5/4” (1”) thicknesses for different applications. The use of the 5/4 trim will give you better definition next to most sidings to accent windows, doors and other trim surfaces.
There are many manufacturers who offer an exterior version of trim board. Miratec is a one-piece product (not a two-piece laminated product) with high grade resins made in both 4/4 and 5/4 nominal thicknesses.
Bring a sample!
It is strongly recommended that you bring a sample (even if very weathered or damaged) to obtain the best possible match. Matching older siding is ALWAYS a challenge for us due to the wide range of ages and the varieties manufactured.
Hardboard Siding Reminders
Re-looking at the two major hardboard siding manufacturer’s installation and warranty details, we thought it would be great to review a few details we commonly see forgotten:
- Fastening must not exceed 16” on centers
- All lap products require the butt joints to be located on the studs and nailed at those joints
- Fasten from one end to the other OR from center to ends.
- A minimum of 4 dry mils, including factory primer, is required. This is best achieved by applying two coats of finished paint.
- Staples are not an acceptable fastening device.
- Blind nailing is not acceptable.
- Siding must be finished within 90 days of installation. If siding must be exposed for a longer period, re-prime the siding with a premium alkyd oil-based primer or a premium acrylic latex primer.
- Siding must have a minimum 2 inch separation from concrete or be appropriately flashed. Siding must be 6 inches or more from soil or landscaping materials of any type.
- Where the siding meets the roof, it must be spaced a minimum of 2 inches from the plane of the roof and be properly flashed. Cut edges in these locations, like elsewhere, must be primed and painted.
The failure to do this last one is responsible for the huge majority of damaged/deteriorating sidings we see!