Excel-Coat
F/S
Application Guide
Fire
System - Heavy Duty Pedestrian Traffic Membrane
ICBO No.
4804
MATERIALS
- Excel-Coat
#1
- Excel-Coat #200
- Excel-Coat
#300
- Excel-Crete
- Excel-Crete
Clear Additive
- Excel-Coat
Patching Compound
- 0.9 ounce
Fiberglass
- Urethane
Caulking
- Galvanized
Roofing Nails
- Galvanized
Staples
- Galvanized
Metal Lath
- Excel-Crete K/D
and Tinted Additive may be used an alternate texture for increased skid
resistance and durability
- Excel-Crete
Retarder (as needed for Excel-Crete Texture
TOOLS
- Fiberglass
Roller
- Hammer
- Razor Knife
- Wallboard
Scraper
- Roller Sleeves
- Roller Frame
- Staple
Gun
- Drill Motor
- Drill Mixing
Attachment
- 4" Paint Brush
- Air Compressor
(Optional)
- Hopper Gun
(optional )
- Caulking Gun
- Caulking Knife
- Steel Finishing
Trowel
PREPARATION
PLYWOOD
- All plywood shall be a minimum of 5/8" thick, exterior grade, AC or
better, plugged and filled.
- Check all joints. All edges must be blocked and supported. Plywood shall
be fastened with deck screws or nailed with ring shank or equivalent non-backing
nails in accordance with Local Building Code.
- Check for proper slope: 1/4" per foot.
- Check for
imperfections and damage to the substrate, perimeter building materials, and
substrate joists and beams.
Note: If the plywood
will be exposed for extended periods of weathering, it is recommended that the
plywood surfaces be initially treated with a coat of Excel-Coat #1. This will
aid in preventing delamination, deterioration or warping.
Excel-Coat Waterproofing Systems can be installed over other waterproofing
systems. Contact an Excellent Coatings representative to find out what options
are available for your particular application.
METAL
FLASHING
- Metal flashing shall have a bonderized finish (etched and galvanized) and
be a minimum 26 gauge.
- It is recommended that a bed of caulk be placed on the plywood and the
metal flashing seated into the caulk.
- Metal flashing shall be fastened three inches on center in a W pattern
with galvanized flashing nails. Flashing must be nailed down flat with no
buckling.
- All metal flashing must have a minimum 3" overlap at the connecting
seams. Corners must be tight and the entire perimeter must be flashed.
Overlaps shall be treated with a 4" strip of fiberglass saturated with
Excel-Coat #1. Soldering of overlap is also acceptable.
- All joints and seams shall be caulked with a urethane sealant. Remove
all excess sealant from the plywood and flashing.
Stair
nosing is recommended on all stairs and landings to minimize wear. The stair
nosing should be installed before the Excel-Coat membrane is installed. For
proper drainage, the nosing should be 1"-2" shorter than the step, and centered,
allowing a gap on either side of nosing to allow water to drain off the stair.
APPLICATION
The
entire deck surface should be covered with the 2.5 galvanized metal lath. Lath
shall be installed over horizontal edge of all metal flashing. All seams in the
lath shall be tight, with no gaps or overlap.
PREPARATION:
- Pull sheets of metal lath off the bundle in the same direction and lay
side by side.
- Seams in the metal lath must be a minimum of 3" away from a parallel
joint in the plywood.
- Using a few galvanized roofing nails, fasten the lath in place to prevent
the metal lath from moving while stapling.
APPLICATION:
- Using a 16 gauge, minimum 1" crown and minimum 5/8" leg galvanized
staple, begin to staple in the middle of the sheet and work toward the edges.
- Staple in a checker pattern using approximately 20-25 staples per square
foot.
- Adjust next sheet and repeat process.
- After all sheets have been fastened, staple all seams at a rate of one
staple per linear inch. Use galvanized roofing nails in any areas where the
staple gun will not reach or hold lath back ½ inch from angles and edges to
ensure all outside.
10/08