Dow FROTH-PAK - Manual

installation information . commercial . united states/canada
Perimeter Seal and Parapet/Roof Repair
Using FROTH-PAK
™
Foam Sealant Kit
FROTH-PAK ™ Foam Sealant is a
portable, two-component, spray
polyurethane foam dispensing
system for air sealing, insulation
and moisture management around
the building envelope. Reducing
air leakage is crucial for enhancing
building envelope performance.
Often a source of air leakage is
around the perimeter of the building
between the roof deck and parapet.
Sealing this area during construction
can potentially reduce costly repairs
later, as well as improve building
performance.
FROTH-PAK ™ Foam Sealant also
can be a cost-effective way to repair
the parapet/roof deck area.
G e T T i n G R e A d y
ESTIMATE APPLICATION AREA
Before selecting a FROTH-PAK ™
Foam Sealant kit, determine the amount
of foam needed to complete the task.
For example, the FROTH-PAK ™ 200
kit has a theoretical yield of 200 board
feet (0.46 m 3 ) of foam.
MATERIALS ANd EquIPMENT
• FROTH-PAK
™ Foam Sealant kit
complete with gun/hose assembly,
dispensing nozzles, petroleum jelly
packet and operating instructions
• Protective clothing (including
long sleeves), goggles or safety
glasses, gloves and respiratory
protection
• Roofing knife or handsaw
• 10-12 mil polyethylene
• 5/8" to 3/4" (16 mm to 19 mm)
plywood if repairing (larger than
area to be repaired)
• Paintbrush or roller
• Protective roof coating (similar
or compatible to originally
applied coating)
S A F e T y A n d
C O n d i T i O n S O F U S e
• Read the instructions and Material
Safety Data Sheets carefully before
use.
• FROTH-PAK ™ spray polyurethane
foam contains isocyanate,
hydrofluorocarbon blowing agent
and polyol. Do not breathe vapor or
mist. Use only in well-ventilated
areas or with proper respiratory
protection. Supplied air or an
approved air-purifying respirator
equipped with an organic vapor
sorbent and a P100 particulate
filter may be required to maintain
exposure levels below ACGIH,
OSHA, WEEL or other applicable
limits. For situations where the
atmospheric levels may exceed
the level for which an air-purifying
respirator is effective, use a
positive-pressure, air-supplying
respirator (air line or self-contained
breathing apparatus).
• Isocyanate is irritating to the eyes,
skin and respiratory system,
and may cause sensitization by
inhalation or skin contact.
• FROTH-PAK ™ foam will adhere to
most surfaces and skin. Do not
get foam on skin. Wear protective
clothing (including long sleeves),
gloves, goggles or safety glasses,
and protective clothing. Cured foam
must be mechanically removed or
allowed to wear off in time.
• The contents are under pressure.
• FROTH-PAK ™ foam should not be
used around heaters, furnaces,
fireplaces, recessed lighting
fixtures or other applications where
the foam may come in contact with
heat-conducting surfaces. Cured
FROTH-PAK ™ foam is combustible
and will burn if exposed to open
flame or sparks from high-energy
sources. Do not expose to
temperatures above 240°F (116°C).
A P P l i C A T i O n
1. Remove all contaminants (water,
oil, dust, dirt, debris, old sealants,
etc.) that could affect the adhesion
between the roof deck, parapet
and foam. If in doubt, conduct an
adhesion test, waiting at least 1 hour
to assess the bond.
2. Check material compatibility.
FROTH-PAK ™ Foam Sealant is not
compatible with silicone coatings.
Remove any silicone coating at least
6" (15 cm) from the area to be sprayed.
Note: Always check with local
building officials and codes for
additional requirements prior to using
FROTH-PAK ™ Foam Sealant.
3. Follow the operating instructions
included in the FROTH-PAK ™ Foam
Sealant kit packaging. Contact your
local Dow representative or visit
www.dowbuildingsolutions.com
for more information.
SEAL PERIMETER (duRINg
CONSTRuCTION)
FROTH-PAK ™ Foam Sealant can be
easily installed around the perimeter
on the exterior side of the roofing
assembly. Install the foam prior to
installing the membrane or insulation.
FROTH-PAK ™ Foam Sealant meets the
requirements for use on the exterior of
a commercial roof per Section 2603
of the International Building Code.
The code requires that foam plastic
insulations have surface burning
characteristics of ≤ 75 flame spread
index and ≤ 450 smoke developed
index. The application of the product
is limited to an area of 8" (20 cm) wide
x 2" (5 cm) thick.
Note: During application, the foam
exerts force as it expands. Monitor
the amount of foam installed to avoid
overfilling restricted spaces.
1. Apply foam 2" (5 cm) thick or less
between the roof deck and parapet
(Figure 1).
2. In approximately 5 minutes,
remove any overspray with a
roofing knife. If additional shaping
is required, cut the cured foam with
a handsaw.
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
Figure 1