Installation Instructions
Allura Fiber Cement Siding Installaon Manual
2
Glossary
Because this manual was written for building professionals, we have freely used the
language and jargon of the siding industry. To avoid confusion, we thought it a good
idea to share our understanding of each of these terms with you.
Back Sealing/Back Priming—Applying a sealer or primer to the back of a
cladding material. This practice is not recommended with Allura Fiber Cement.
Band Board—A decorative piece of horizontal trim placed between two floors
along the rim joist.
Beaded—A narrow, half-round molding at the base of a lap siding panel.
Blind Nailing—Fastening through the top edge of lap siding so that the
fastener head will be covered by the next course of siding.
Butt end/Joint—A joint created by placing edges of lap siding end-to-end
without overlapping.
Casing—Molding of various widths used to trim door and window openings at
the jambs; also referred to as lineal, window, or door surround.
Contraction—Commonly refers to building products contracting due
to heat loss or moisture leaving the product, especially as outside
temperature changes.
Course—A row of siding panels running the width of the house.
Dormer—A gabled extension built out from a sloping roof to accommodate a
vertical window.
Drip Cap—A horizontal flashing placed over exterior door or window frames to
divert rainwater.
Dutchlap—Refers to a drop-style panel that was popularized by early
American settlers in the seaboard states; lap siding panel with a horizontal
bevel at the top of the panel that sits just below the bottom of the next course
of siding.
Eave—The overhang of a pitched roof at the bottom edge, usually consisting
of a fascia board, a soffit for a closed cornice, and appropriate moldings.
Expansion—Commonly refers to building products expanding due to
heat build-up or moisture entering the product, especially as outside
temperature changes.
Exposure—The width of the exposed face of each panel of siding; also referred
to as reveal.
Face—The side of the siding, trim, or soffit that is exposed to view after the
product has been installed.