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Property Types & Construction

Lap Siding

Definition and meaning of Lap Siding in real estate.

Lap siding is a type of exterior house cladding consisting of long, horizontal boards that overlap one another to shed water and protect the home from the elements. It is one of the most common siding styles used on residential properties across the United States.

In more detail

The overlapping design, where the bottom edge of one board overlaps the top edge of the board below it, creates a barrier that prevents rain and snow from reaching the home's framing. Historically made of wood, modern lap siding is available in durable materials such as vinyl, fiber cement, and engineered wood.

Fiber cement lap siding is popular because it resists rot, insects, and fire while mimicking the look of natural wood. Home buyers and inspectors should look for proper clearance from the ground and check for signs of warping, peeling paint, or loose boards. Upgrading old siding can significantly improve a home's insulation and market appeal.

Key facts

CategoryProperty Types & Construction
Also known asClapboard or bevel siding
Common materialsVinyl, wood, fiber cement, and aluminum
Primary purposeWater shedding and weather protection
Example

During their home renovation, the owners replaced their damaged wood siding with durable fiber cement lap siding to lower maintenance costs and improve fire resistance.

Frequently asked questions

What is the difference between lap siding and clapboard?

The terms are often used interchangeably. Lap siding is a general term for any horizontal siding that overlaps, while clapboard traditionally refers to narrow wood boards.

How long does fiber cement lap siding last?

Fiber cement lap siding is highly durable and can last for fifty years or more when installed and maintained properly.

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