low-e attic and decking radiant barrier
U.S. PATENT PENDING
Product Description
Radiance™ Low-E Attic and Decking Radiant Barrier is designed to be applied to the
underside of roof decks. It helps keep structures warmer in the winter, and cooler
in the summer, while at the same time reducing heating and cooling costs.
The physics behind Radiance is similar to
low-e glass windows, which reduce the loss of radiant heat in the winter and the emission
of heat into a building in the summer. The "e" in low-e refers to
emissivity, which is the ability of a surface to emite or absorb radiative energy.
The lower the "e" value the more efficient it is in managing energy and the
greater the energy savings.
Radiance Low-E Attic and Decking Radiant
Barrier is applied like a normal paint onto plywood decks, or properly prepared
metal or masonry surfaces. It's a smart coating which slows the heat loss of a
building in the winter and slows heat gains in the summer. Radiance has microscopic
reflective particles suspended in a infrared transparent binder matrix. In the
winter more than 50% of the radiant heat which would normally escape is reflected back,
slowing the loss of heat from the building. In the summer, it keeps more than 50%
of the sun's infrared energy from emitting into the building, keeping the building and its
occupants cooler and more comfortable.
Where to Use Radiance™ Low-E Attic and Decking Radiant Barrier
- Plywood and chip board roof decking
- Sheetrock
- Primed or coated metal roofing
- Ceiling tile
- Pre cast concrete
Features and Benefits
- Reduces heating and cooling bills
- Reflects up to 50% of radiant energy
- One coat coverage on base wood and primed
metal
- Low emissivity ...."e" value is
0.49.
HOW TO APPLY RADIANCE™
Surface preparation
Aluminum and Galvanized Steel:
Remove all surface contaminants by washing with an appropriate cleaner. Any
corrosion must be removed with hand tool cleaning, steel wool or other abrading method.
Drywall: Remove all
surface contaminants by washing with an appropriate cleaner. Fill cracks and nail
holes with patching paste/spackle and sand smooth. Joint compounds must be cured and
sanded smooth. Remove all sanding dust. Water stains may be sealed with a
commercial stain killer.
Masonry, concrete, cement brick and
block: Remove all surface contaminants with an appropriate cleaner. All
surfaces must be fully cured. Remove all form release and curing agents. Rough
surfaces can be filled to provide a smooth surface.
Plaster: Base plaster must
be cured and hard. Textured, soft, porous, or powdery plaster should be treated with
a solution of 1 pint household vinegar to 1 gallon of water. Repeat until the surface is
hard, rinse with clean water and allow to dry.
Steel: Remove all surface
contaminants by washing with an appropriate cleaner. Rust and mill scale must be removed
using sandpaper, steel wool, or other abrading methods. Bare steel must be primed the same
day as cleaned.
Wood: Remove all surface
contaminants by washing with an appropriate cleaner. Sand any exposed wood to a fresh wood
surface. Patch any nail holes and imperfections with a wood filler or putty and sand
smooth.
Previously painted surfaces:
Remove all loose coatings and corrosion by scraping, sanding or other abrading
method. Dull glossy and non-porous surfaces with sandpaper or abrasive
cleaner. Remove all surface contaminants by washing with an appropriate
cleaner. Patch and fill areas as needed. Spot prime any bare areas with the
appropriate primer.
Mildew: Mildew must be
removed before painting by washing with a solution of 1 quart household bleach and 3
quarts warm water. Wear rubber gloves and protective clothing. Apply the
solution and scrub the mildewed area. Allow the solution to remain on the surface
for 10 minutes. Rinse thoroughly with clean water and allow the surface to dry 48
hours before painting. DO NOT ADD DETERGENTS OR AMMONIA TO BLEACH SOLUTION.
Mixing
Stir thoroughly before each use.
Application
Radiance Low-E Attic and Decking Radiant
Barrier may be applied by brush, roller, or sprayer. The preferred method may be spraying
because of protruding roofing nails.
Roller: Use a 3/16" or 3/8"
synthetic-nap roller cover.
Airless sprayer: Recommended pressure is
2,000 psi using tip size 0.018" to 0.021".
Dry Time
Dries to the touch in 2 - 4 hours at 77°F
and 50% relative humidity. Only one coat is required, but allow 8 hours between
coats.
Clean up
Use warm, soap water. Follow sprayer
manufacturer recommendations when cleaning equipment.
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