| SB60™ Self-Adhesive Shingle Underlayment
SHINGLE UNDERLAYMENT creates a waterproof barrier that
can be exposed to the sun for up to 12 MONTHS before
being covered with shingles.
- Install under roofing to provide a moisture barrier wherever
wind-driven rain or excessive water is expected.
- Self-seals around nails and screws.
- Apply to entire roof deck or at eaves, valleys, vents, skylights,
- Granular non-slip surface for improved walking.
- 10 year limited warranty.
SB-60 ™ is a self-adhering
mineral surface underlayment which is applied directly to the roof
deck to protect from leaks due to wind-driven rain or roof failure.
The specially formulated rubberized asphalt adhesive seals around
nails and forms a long-lasting barrier.SB-60 is
backed with a protective release sheet which removes easily during
application. The release sheet is perforated in the middle for easy
valley applications. An adhesive selvedge ensures a water-tight seal
between courses ofSB-60.
Do not use under metal roofing unless approved for use by the metal
1) The membrane should be applied in fair weather at a minimum temperature
of 50° F. Minimum slope for installation is 2 inches per foot.
2) The surface to receiveSB-60 shall
be clean, dry and smooth. Prime masonry, OSB, and aged and metal
surfaces with an asphalt primer to achieve maximum adhesion.
3)SB-60 is installed
by removing the release sheet and pressing the membrane onto the
roof deck. The selvedge should be on the upward slope to seal to
the next course ofSB-60 . CPI recommends
peeling back 12” of the release sheet to expose the adhesive
and pressing theSB-60 onto the roof
deck. Continue to remove the release sheet as theSB-60 is
unrolled and pressed onto the roof deck.SB-60 is
easily cut with a knife or scissors.
4)SB-60 has a perforated
release film. It may be installed by unrolling the amount ofSB-60 required,
separating the release film at the perforation, and sticking one-half
of theSB-60 to the roof
deck. Then, fold up the half that still has release film, remove
the release film, and press SB-60 on
to the roof deck.
5) Overlap ends at least 6 inches. If SB-60 is not
going to be covered immediately by the roof, prior to applying the
next roll, you must cover the 6 inch lap area with a continuous application
of asphalt caulking or roofing mastic to ensure a water tight seal.
6) Extend SB-60 above the
highest level water is expected.
7) If applying to more than one course of SB-60,
make sure the side laps are at least 3 inches and installed in a
shingle-like manner so that the water will run over the lap seam.
Remove the protective film covering the selvedge, roll out the next
course of SB-60 and firmly
press into place.
8) Ridges, valleys, chimneys, dormers and other areas requiring
flashing may need special attention. Make sure that all overlaps
are installed in a shingle-like manner and sealed with asphalt caulking
or roofing mastic.
9) Cover SB-60 with final roofing
within 12 months of application.
Read complete Installation Instructions
on package before applying SB-60.
||2.5” - 3”
||60 mils min.
||>42 lb MD
||>33 lb CD
|Elongation at Break
||>60 lbs/sq CD
||>50 lbs/sq MD
||2 : 12
||50˚ F - 100˚ F
||-30˚ F - 170˚ F
All testing per ASTM D 1970 unless otherwise