Common terms to know for following along the installation instructions:
Read more about measuring vinyl siding
Profile
The contour or outline of a siding panel as viewed from the side.
Nail flange
Flat area along top of panel with slots for nailing; slots allow for expansion and contraction.
Lock
Molded area just under nailing flange into which butt leg/locking leg of next panel above is secured.
Exposure
The width of the exposed face of each panel of siding; also referred to as reveal.
Texture
Visual and tactile characteristics of the siding panel; designed to recreate the authentic look of natural wood grain, stucco, smooth painted clapboard, etc.
Read more about installing vinyl siding accessories
Panel Thickness
An important element of siding quality. Thicker panels are more durable, stand up to impacts and high winds, and look straighter on the wall.
Butt leg/locking leg
The bottom part of a siding profile that connects or locks into the panel below.
Panel projection
Common to products with multiple faces (i.e. Double 4 or Triple 3). It is the dimension required for the proper selection of receiving channels (e.g., J-Channels and corner pieces).
CertaWrap installation
