Cost to Install Fiber Cement Lap Siding
Installing fiber cement lap siding means preparing the wall’s weather barrier and trim, then fastening overlapping planks into the wall framing. The work depends on accurate course layout, flashing at every plank-end joint, drainage details at openings, and properly finished cut edges. It is commonly taken on when existing siding is worn or damaged or when the exterior is being updated.
Common reasons homeowners do this job
- Existing siding is worn or damaged.
- The exterior is being updated.
- A wall needs new lap siding.
- Corner trim, siding, and opening details are being replaced together.
DIY or call a pro?
A professional should install fiber cement lap siding. Cutting fiber cement can create silica dust, so cutting must be done outdoors or with wet-cutting practices while using respiratory and eye protection and keeping others away from the cutting area. Planks are heavy and can break, and ladder or scaffold work requires care.
Frequently asked questions
- Can I install fiber cement lap siding myself, or should I hire someone?
- Hire a professional for this installation. The job requires reliable weather-barrier preparation, accurate layout, flashing behind every plank-end joint, and fastening each plank into every stud, along with controlled cutting and careful work from ladders or scaffolding.
- What makes fiber cement lap siding installation cost more?
- The price scales with the wall area, labor time, and materials. Walls with more area require more siding and installation work, while the required materials include siding, trim, flashing, drip caps, fasteners, caulk, primer, and paint where unfinished siding is used.
- What should be checked before the first siding plank goes up?
- Check that the wall sheathing and house wrap or building paper are intact, then locate and mark every stud with chalk lines. A story pole should be used to plan the courses so the uppermost course ends up a workable width.
- Why does every fiber cement butt joint need flashing?
- Place felt or flashing behind each plank-end joint, extending it onto the course below. Also maintain small gaps where planks meet corner trim and around windows and doors, and install drip caps at openings.
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