joints which receive counterflashing with caulking compound. Caulking is
covered in Section 07920 JOINT SEALANTS. Turn up the concealed edge of
counterflashings built into masonry or concrete walls not less than 6 mm
1/4 inch and extend not less than 50 mm 2 inches into the walls. Install
counterflashing to provide a spring action against base flashing. [Where
bituminous base flashings are provided, the counter flashing shall extend
down as close as practicable to the top of the cant strip. Counter
flashing shall be factory formed to provide spring action against the base
flashing.]
3.1.13
Metal Reglets
Caulked type or friction type reglets shall be factory fabricated with a
minimum opening of 6 mm 1/4 inch and a depth of 30 mm 1 1/4 inches, as
approved.
3.1.13.1
Caulked Reglets
Provide with rounded edges and metal strap brackets or other anchors for
securing to the concrete forms. Provide reglets with a core to protect
them from injury during the installation. Provide built-up mitered corner
pieces for internal and external angles. Wedge the flashing in the reglets
with lead wedges every 450 mm 18 inches, caulked full and solid with an
approved compound.
3.1.13.2
Friction Reglets
Provide with flashing receiving slots not less than 16 mm 5/8 inch deep, 25
mm one inch jointing tongues, and upper and lower anchoring flanges
installed at 24 inches maximum snaplock receiver. Insert the flashing the
full depth of the slot and lock by indentations made with a dull-pointed
tool, wedges, and filled with a sealant. For friction reglets, install
flashing snaplock receivers at 24 inches o.c. maximum. When the flashing
has been inserted the full depth, caulk the slot and lock [with wedges] and
fill with sealant.
3.1.14
Polyvinyl Chloride Reglets [Temporary Construction Installation]
Rigid polyvinyl chloride reglets ASTM D 1784, Type II, Grade 1, Class
14333-D, 0.075 inches minimum thickness may be provided in lieu of metal
reglets for temporary construction.
3.1.15
Gravel Stops and Fascias
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NOTE: On projects having smooth surfaced roofs, the
upstanding leg of the gravel stop may be omitted.
Specify in the appropriate roofing section.
Coordinate installation requirements for sheet metal
gravel stops and fascias with the referenced roofing
section.
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Prefabricate in the shapes and sizes indicated and in lengths not less than
2400 mm8 feet. Extend flange at least 100 mm 4 inches onto roofing.
Provide prefabricated, mitered corners internal and external corners.
Install gravel stops and fascias after all plies of the roofing membrane
have been applied, but before the flood coat of bitumen is applied. Prime
roof flange of gravel stops and fascias on both sides with an asphalt
SECTION 07600
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