How Much Overlap Does Siding Have

Lap board for horizontal installation.

How much overlap does siding have.

Whereas 76 series lap siding may be installed on studs a maximum of 24 inches o c. Hardie plank siding is a fiber cement based siding product produced by the james hardie corp. Different materials and styles of siding have varying requirements for the minimum amount of overlap needed to keep the wall water tight and maximize the durability of the siding. Other than material thickness one main difference is 38 series lap siding may be installed on studs spaced a maximum of 16 inches o c.

Today lap siding is made from. Manufacturers have vinyl siding and accessories that mimic the look of wood stone and other natural siding materials. A wash down with a garden hose handles much of the cleaning. As its name lap implies an upper siding board laps over the board below it by 1 to 2 inches.

Each panel has an overlap ridge at one end and an underlap ridge at the other end. Most lap siding is beveled meaning that the bottom edge is thicker than the top. The exposure of the board is the amount of the board that is exposed to the elements. Built from water wood pulp portland cement and fly ash fiber cement siding provides the durability of masonry work while mimicking the look of wood and other materials.

In other words you can some times see the seams or joints where 2 siding pieces meet. Often the minimum amount of overlap is 1 1 1 2. The upper plank slightly overlaps the plank immediately below it. Hardie plank siding has a nail line across the top of the board that is 1 down from the top and nails are supposed to fall between and 1 from the top of the board to give the best hold.

When the panel is laying flat on a surface the side that touches flat is the underlap side. Because vinyl siding is long strips of molded plastic that gets nailed to the house on strip at a time if it s not properly installed you can see the areas where pieces overlap the next board. The opposite end the overlap side will be elevated slightly above the surface. You have plenty of options with vinyl siding if you want an authentic look.

Originally lap siding was made of wood planks placed on the side of the structure horizontally.