d.
Tiles overlapping sheet metalwork shall have the nails so placed
as to avoid puncturing the sheet metal. Tiles overlapping sheet
metal shall be fastened with copper wire and plastic cement.
e.
When tile is applied tight method, short course
covers shall be
installed over regular pans at eave and regular
covers over short
course pans at ridge. Top edge of covers shall
abut bottom edge
of pans in the succeeding course throughout the
roof.
f.
When covers are laid at random exposure, 10 percent extra covers
in the first three courses at eave shall be used to avoid
horizontal and diagonal lines and maintain this effect throughout
roof.
g.
Gable rakes shall be cemented to field tiles and fastened with
nails.
h.
Hip rolls shall be cemented in laps and fastened with 50 mm 2 inch
copper nails.
i.
Ridges shall be cemented and fastened with 63 mm 2-1/2 inchcopper
nails in laps and where they rest on roof tiles.
j.
Where tiles join hip stringers they shall be made waterproof with
flashing cement.
k.
When hip starter and closed ridge end fittings have not been
specified, the voids at ends of hips and ridges shall be filled
with mortar colored to nearest match of tile color.
l.
Tile in contact with cement mortar shall be immersed in water for
at least 2 minutes before laying.
m.
When ridge angles and hip/ridge terminals have not been specified,
they shall be mitered on job, nailed or wired, and set in plastic
cement.
n.
When short course tiles are not otherwise specified for rafters
which do not accommodate full courses, they shall be cut and
drilled on job by roofer unless a plus or minus 25 mm 1 inch
adjustment of regular tile overhang at eave is sufficient.
3.10
FLAT SHINGLE TILE APPLICATION
3.10.1
Wood Strips
Wood stringers, 25 mm 1 inch wide and of proper height, shall be applied on
hips and ridges to carry hip roll and ridge. A 18 by 25 mm3/4 by 1 inch
cant strip shall be applied at eaves.
3.10.2
Tile Application
a.
Tiles shall be laid to straight lines parallel to ground level,
lapped 75 mm 3 inch vertically.
b.
Each tile shall be fastened with the quantity of nails, wind locks
and/or hurricane clips recommended by the manufacturer for the
specified roof slope, building height, and wind velocity.
SECTION 07320A
Page 14