Duro-Last Duro-Guard Sopravap'r User Manual
Page 2

2 of 2
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Duro-Last, Duro-Guard and “World’s Best Roof” are registered marks owned by Duro-Last, Inc.
Created: 01/15/2014
DURO-GUARD
®
SOPRAVAP’R
INSTALLATION:
1. Limitations
a. The minimum ambient and surface
temperature before application should be
14
F and rising.
b. Do not use during wet weather.
c. Do not use on wet substrates.
d. Do not use on dirty or greasy substrates.
e. Do not use on substrates that show signs of
deterioration or loss of structural integrity.
f. Do not use product after expiration date.
2. Vapor barrier (immediately covered by a roof
system)
a. Install according to the 6 steps shown in the
pictures below.
3. Temporary roof (not immediately covered by a
roof system)
a. Install according to the 6 steps shown below.
b. Cover and seal all T joints, transitions and
any other openings with Sopramastic.
TABLE 1. PHYSICAL PROPERTIES
2
Standards
Results
Thickness
- 31.5
mils
Weight
- 0.16
lb/sqft
Tensile Strength
ASTM D 5147 64 lbf/in x 88 lbf/in
1
Elongation
ASTM D 5147
52% x 24%
1
Cold Bending
ASTM D 5147
-31° F
Static Puncture
ASTM D 5602
90 lbf
Tear Resistance
ASTM D 5601
84 lbf x 90 lbf
1
Lap Adhesion
ASTM D 1876
138 lbf
Water Absorption
ASTM D 5147
0.1% maximum
Peel Resistance
ASTM D 903
83 lbf/ft
Water Vapor Permeance
ASTM E 96
(Pro. B)
.017 perm
Air Permeability
ASTM E 283
(75 Pa)
< 0.007 L/sec
.
m
2
1
Values are shown for both machine and cross machine
directions. The machine direction results are listed first.
2
All values are nominal.
1. Roll out the Sopravap’r over a clean, dry
deck.
2. Once the membrane is in place, while
holding the membrane tight, peel off the
silicone release film by pulling diagonally.
3. Install subsequent rolls of membrane in
the same way, taking care to overlap the
longitudinal joints by 3 inches.
4. On steel decks, at the end of a roll, install
a metal plate (6 in. by 42 in.) to support the
membrane end lap between the metal flutes
ensuring a complete end lap seal. End laps
must overlap by 6 inches.
5. The membrane’s superior strength offers
extra protection from heavy foot traffic during
installation. The slip-resistant surface allows
for safe movement across the roof.
6. Once installation is complete, the
Sopravap’r membrane temporarily protects
against inclement weather. If not immediately
covered, follow extra steps per 3a and 3b in
the instructions above.