Masonite Siding

Masonite is the name for commercial hardboard siding. It is also simple referred to as Hardboard. This type of siding is made of wood products and a binder. Glues, resins, and/or waxes are used to bind the products together. During the manufacturing process, heat and pressure is used to consolidate the wood fibers. The final product is a smooth, dense, compressed board that can be used for siding purposes.

Masonite siding is obtainable in two forms; horizontal lap siding and panels. Each form is made with equivalent strength on all sides. The siding is available in an array of colors and textures and is unique in how it resembles conventional lumber products. Different profiles, edge detail, finishes, thicknesses, widths and lengths are also available depending on the form.

Horizontal Laps

• Thicknesses of 7/16th inch and 1/2 inch.
• Lengths up to 16 feet.
• Beveled, shiplap, square and straight edge detail.
• Available in beaded boards, channel groove and clapboard.
• Primed, pre-painted, pre-stained, and pre-finished finishes.

Panels

• Thicknesses of 7/16th inch and 1/2 inch.
• Widths up to 4 feet.
• Lengths up to 9 feet.
• Primed, pre-painted, pre-stained, and pre-finished finishes.

It is important to note that Masonite siding will lose its color and start to look worn after 5 or 6 years. Other problems will start to arise after this 5-6 year mark. Generally, the siding will begin to expand slightly causing the area around the nail heads to become damaged. This damage allows moisture to pierce the board’s surface which expands the material and forces the paint to break. For this reason, you will need to re-paint your Masonite siding after the given amount of time. For the best results, exterior latex and acrylic paint should be used.

Installation is fairly simple with Masonite siding. However, the process does require certain knowledge and special steps so for the best results the job should be left to a professional. Faulty installation is the most common cause of problems associated with Masonite siding. Also, the manufacturer's warranty does not include problems related to faulty installation.

Benefits of Masonite Siding

• High bending strength.
• Tensile strength.
• Stability.
• Imitates real lumber.
• Available in a variety of colors and textures.

Disadvantages of Masonite Siding

• Susceptible to insect attacks, rot, peeling, cracking, and fire.
• Over time it naturally absorbs water and swells slightly. Moisture intake can lead to irremovable mildew, indoor leaks, cracked exterior paint, and damaged nails.
• Must be treated with fungus repellants and insecticides.
• May buckle and soften.
• Caulking must be maintained.
• Repainting is necessary.
• A number of class action lawsuits against the manufacturers of hardboard siding have been made.

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