How Far To Overlap Fiber Cement Siding

This calculator can be used to calculate the amount of boards needed to cover a wall when using siding that comes in fixed board lengths such as engineered wood siding and fiber cement siding.

How far to overlap fiber cement siding. Measure down from the top of the installed board 1 1 4 inches every four feet and make a mark. A 6 inch wide clapboard with a 1 inch overlap has a 5 inch exposure. Install the first lap. The portion that s visible not overlapped is called the exposure.

Flash above doors and windows leaving a gap between the flashing and siding. If you need to cut cement siding a 100 acrylic latex primer must be used to reseal the surface. Measure and cut to length the first piece of siding and nail it in place photo 7. Always follow the manufacturer s directions.

For example you install fiber cement lap siding in much the same way as wood siding but most manufacturers advise you to leave 1 8 inch gaps at the ends of the boards to allow for expansion and then caulk the gaps. Fiber cement panels butt together at the edges making layout a no brainer. Fiber cement siding shall have a 1 8 gap between trims of windows and doors. Fiber cement siding should be installed 6 or more above the grade level of the house with a 1 2 gap between horizontal surfaces like decks steps or adjacent roofs.

Nail the board to the house every 16 to 24 inches with a roofing nail along the nail line printed on the top of the siding board. Install a 1 inch wide strip of siding material just above the marked line. Fiber cement engineered wood siding calculator calculate the amount of fiber cement engineered wood siding needed to cover a wall online. This strip will kick out the bottom of the first lap as if it were sitting on top of another lap.

Most lap siding is beveled meaning that the bottom edge is thicker than the top. Install all butt ends and joints in contact with one another. Gap where the end meets the corner board photo 7 inset and make sure the other end lands on a stud line. How to stagger lap siding for walls longer than 12 feet you ll need to butt additional lengths of siding together.

It s best to stagger the joints in each successive course to avoid noticeable patterns. With clapboards and shingles each course overlaps the next by at least 1 inches.