Face nailing Hardie lap siding is a common practice in the construction industry, especially for installing fiber cement siding like Hardie lap siding. In this technical guide, we will explore the process and considerations for face nailing this type of siding to ensure a secure and durable installation.
Understanding Hardie Lap Siding
James Hardie lap siding, often referred to as HardiePlank or simply Hardie siding, is a durable and weather-resistant building material made from a combination of cement, wood fibers, and other additives. It is a popular choice for residential and commercial exteriors due to its resistance to rot, termites, and fire.
What is Face Nailing?
Face nailing is a method of attaching siding to a structure by driving nails directly through the face of the siding and into the underlying substrate. This is in contrast to blind nailing, where nails are inserted into the top edge of the siding, and the next course of siding conceals them.
When to Face Nail Hardie Lap Siding
Face nailing Hardie lap siding is typically employed in the following situations:
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Butt Joints: When two pieces of lap siding meet at a butt joint, it’s common to use face nails to secure the ends in place. This provides additional support at the joints.
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Around Openings: Face nailing is also used around windows, doors, and other openings where it may be challenging to use blind nailing methods.
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Repairs and Replacements: When repairing or replacing damaged sections of Hardie lap siding, face nailing is often the most practical method.
The Face Nailing Process
Here’s a step-by-step guide to properly face nailing Hardie lap siding:
Tools and Materials:
- Hardie lap siding pieces
- Appropriate length and type of nails (hot-dipped galvanized or stainless steel)
- Nail gun or hammer
- Safety glasses
- Measuring tape
- Chalk line
Steps:
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Prepare the Surface: Ensure that the surface to which you are attaching the siding is clean, level, and properly prepared. It’s crucial to install a weather-resistant barrier, such as Tyvek, over the sheathing before attaching the siding.
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Measure and Mark: Use a measuring tape and chalk line to mark the precise location where the siding will be installed. This helps maintain a straight and even installation.
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Nail Placement: For Hardie lap siding, nails should be placed approximately 1 inch from the top edge of the siding and 1 inch from the bottom edge. Ensure the nails are driven through the siding and into the framing or sheathing beneath.
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Spacing: Space the nails at 16 inches on center, with additional nails at the butt joints or around openings as needed for extra support.
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Nail Angle: For optimal results, nails should be driven at a slight downward angle, so they penetrate both the siding and the substrate.
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Avoid Overdriving: Be cautious not to overdrive the nails, as this can damage the siding. Nails should be flush with the siding surface.
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Check for Alignment: Periodically check that the siding pieces are level and properly aligned as you progress with the installation.
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Sealing: After the siding is installed, apply caulk to the nail heads and any gaps to provide an additional layer of protection against moisture intrusion.
Conclusion
Face nailing Hardie lap siding is a practical method for specific installation scenarios, including butt joints, around openings, and repairs. By following the proper procedures and using the right tools and materials, you can achieve a secure and long-lasting installation that enhances the durability and appearance of your structure.