DECK
FASTENER
___________
___________
shall just penetrate through underside
of deck.
Plank board,
Slater's plain shank nail, at least 25 m
1 inch or more in 37 mm. 1-1/2 inch
thickness shall not penetrate deck.
Gypsum plank or
Nailable Concrete
Stainless steel or silicone bronze
nails with spiral threads, 37 or 50 mm
1-1/2 or 2 inch long. Nail shall
penetrate deck at least 1/2 thickness
but no more than 3/4. Underside of
deck shall not be penetrated. If deck
If deck material is old and excessively
hard, smooth shank shall be used.
Metal
Sheet metal screw and mastic
Fibrous cement
Tile-tie system
Note: All fastening and flashing metals shall be of like material in order
to avoid galvanic action.
3.7.4
Poured Concrete Deck
Poured concrete decks shall have embedded 25 by 50 mm 1 by 2 inchbeveled
wood strips, extending from eave to ridge, spaced 500 mm 20 inches on
centers. Concrete shall be smooth and flush with strips. Felts weighing
23 kg per 9.3 sq. meters 50 lbs. per 100 square feet shall be fastened with
lath nailed over embedded strips. Twenty five by 50 mm One by 2 inch wood
strips, spaced to suit tile, shall be applied horizontally across lath.
Tile shall then be laid as directed for a sheathed roof.
3.7.5
Chalk Lines
Horizontal and vertical guide lines shall be chalked on the membrane to
assure proper appearance. The chalk lines shall be spaced by measuring the
delivered tiles for average length and width exposures. An exposure length
of 6 mm 1/4 inch beyond the average shall not be exceeded.
3.8
ONE-PIECE BARREL TILE APPLICATION
3.8.1
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 25 by 50 mm1 by 2 inch
strip shall be applied for end bands. A 25 by 50 mm1 by 2 inch cant strip
shall be applied at eaves if eave closures are not specified.
3.8.2
Tile Application
a.
Eave closures shall be installed first.
b.
Tiles shall be laid to straight lines parallel to ground level and
shall be lapped 75 mm 3 inches vertically.
SECTION 07320A
Page 12
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