To install a metal panel system, first snap a chalk
line on the sidewall level with the bottom edge of the
fascia board. Use this line as a guide for nailing the wall
hanger strip in place. Insert the panels, one at a time, into
the wall strip. Nail the outer end to the bottom edge of
the fascia board.
After all soffit panels are in place, cut the fascia
cover to length and install it. The bottom edge of the
cover is hooked over the end of the soffit panels. It is
then nailed in place through prepunched slots located
along the top edge. Remember to use nails compatible
with the type of material being used to avoid electrolysis
between dissimilar metals. Again, always study and
follow the manufacturer’s directions when making an
installation of this type.
ROOFING TERMS AND MATERIALS
LEARNING OBJECTIVE: Upon completing
this section, you should be able to define
roofing terms and identify roofing materials.
The roof covering, or roofing, is a part of the
exterior finish. It should provide long-lived waterproof
protection for the building and its contents from rain,
snow, wind, and, to some extent, heat and cold.
Before we begin our discussion of roof coverings,
let’s first look at some of the mast common terms used
in roof construction.
TERMINOLOGY
Correct use of roofing terms is not only the mark of
a good worker, but also a necessity for good con-
struction. This section covers some of the more common
roofing terms you need to know.
Square
Roofing is estimated and sold by the square. A
square of roofing is the amount required to cover 100
square feet of the roof surface.
Coverage
Coverage is the amount of weather protection
provided by the overlapping of shingles. Depending on
the kind of shingle and method of application, shingles
may furnish one (single
coverage), or three (triple
coverage), two (double
coverage) thicknesses of
Figure 3-13.-Roofing terminology: A. Surfaces; B. Slope and
pitch.
material over the roof surface. Shingles providing single
coverage are suitable for re-roofing over existing roofs.
Shingles providing double and triple coverage are used
for new construction. Multiple coverage increases
weather resistance and provides a longer service life.
Shingle Surfaces
The various surfaces of a shingle are shown in view
A of figure 3-13. “Shingle width” refers to the total
measurement across the top of either a strip type or
individual type of shingle. The area that one shingle
overlaps a shingle in the course (row) below it is referred
to as “top lap.” “Side lap” is the area that one shingle
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