TDS
Moving up the roof, install the next layer of felt with a 2 inch overlap. Set
the roll in place, straighten and fasten in the same manner as the rst layer
with approximately 5 nails in the upper right hand corner of the felt. Use the
guidelines (printed on the felt) to align the roll, overlap the rst layer properly and
ensure the felt is straight. Note: The bottom of the upper layer is always on top
of and overlaps the lower layer. When nailing the second and additional layers
of felt, stand on the lower layer of felt that has been completely nailed in place.
Nails will only need to be installed across the bottom and across the center. The
same pattern of every 6-8 inches should be followed. The top will not need to be
fastened as the 2” bottom overlap of additional layers of felt will server to fasten
the tops of the previous layers. Continue across the roof and then upward until
the last layer overlaps the ridge at the top of the roof by approximately 8 inches.
Nail the top layer in place and cut off extra material. If any wrinkles are present
after the application, slit them with a utility knife and nail down at. Then using
a thin layer of APOC ashing cement, seal the slit to waterproof the cut areas.
Repeat the process on the other side of the roof.
NOTE: NRCA recommends roong nails be 11-gauge or 12-gauge galvanized
steel or the equivalent corrosion-resistant roong nails. Nail heads should be
low-prole, smooth and at. Shanks should be barbed or otherwise deformed
for added pull-out strength. Nails should be long enough to penetrate through
all layers of roong materials and extend through the underside of the roof deck
or penetrate at least 1 inch into wood plank or board decks.
HANDLING PRECAUTIONS: Product safety information required for safe use is not
included. Before handling, read product safety data sheets and container labels
for safe use and for physical and health hazard information. Safety data sheets
are available on the APOC website at www.apoc.com. You can also obtain a copy
from your local APOC Distributor or APOC sales representative.
LIMITED WARRANTY AND DISCLAIMER: To the best of our knowledge, the technical
data contained herein is true and accurate at the date of issuance and is subject
to change without prior notice. User must contact APOC to verify correctness
before specifying or ordering. No guarantee of accuracy is given or implied.
For limited warranty and disclaimer information, visit our website at:
www.apoc.com/productwarrantyinfo.
Gardner-Gibson, Inc. • P.O. Box 5449 • Tampa, Florida 33675-5449
Phone: (813) 248-2101 • Fax (813) 248-6768 • www.apoc.com
I-18
COMPLIANCE: Exceeds performance requirements of ASTM D4869 Type II. Type
30.
DESCRIPTION: APOC organic felts are engineered with True-Breathe™
Technology, keeping rain and water on the outside of your home while allowing
water vapor from cooking, cleaning, bathing and other sources to escape home
entrapment. Tru-Breathe™ Technology helps prevent premature damage and
rotting of your roof deck materials which can lead to unsafe structures and the
development of mold. Make sure you use Tru-Breathe™ Technology on your
home or next project
Tru-Breathe™ Technology: Tru-Breathe™ Technology is designed and
manufactured to allow the transmission of air vapor while keeping water
out. Unlike “claims” by synthetic products, this creates a truly breathable
membrane, which helps prevent the rotting of wood decks (caused by synthetic
products) and helps roong materials last longer.
USES: APOC underlayments are manufactured for steep-slope roong such as
shingles, wood shakes, and tiles. In addition, they can be installed under all
types of building materials, ooring and siding, including stucco, aluminum,
vinyl and wood. APOC underlayments provide excellent secondary protection
barriers against wind, moisture, and other environmental elements.
PREPARATION: Always ensure the roof deck is properly prepared. All decayed,
rotting, rusted or broken materials must be removed and replaced before
installing underlayments. Remove and replace all loose nails and secure deck to
sound framing with the correct fasteners, clips and spacing as per local building
codes and or shingle or roong manufacturers published specications. If using
new OSB sheathing, a gap should be left between sheets to allow for expansion
and contraction of new sheathing and prevent bulging and ridges from forming.
Spacing should be approximately 1/8” at end joints and 3/16” at side joints;
however, this must be veried with shingle or other roong manufacturers
specications. To help alleviate expansion and contraction of new OSB, allow
the material to be pre-conditioned prior to installation.
VENTILATION: Always ensure adequate ventilation exists under the roof deck.
This can be in the form of ridge or other ventilation products. High or excessive
humidity can result in wrinkling, ridging or buckling of roong materials
and decks or telegraphing of expansion joints through the roong materials.
Elimination of open spaces from the house to the attic will also help prevent
excessive humidity build up. In hot and arid climates, ventilation is also helpful.
Heat build-up can result in drying, cracking and premature aging of roong
materials. Proper ventilation will help alleviate these concerns.
APPLICATION: First and foremost, never walk on un-nailed felt. Always run felts
horizontally and start at the bottom edge of the roof. In a kneeling position
carefully set roll in place at edge of the roof and unroll 2 - 3 feet. Align the felt so
the edge of the felt covers up to the edge of the rake and eaves but not over the
sides of the building. When the felt is properly positioned, install approximately
5 nails into the top right hand corner of the felt to hold it in place. Fasten nails
in a 2 inch square pattern with one nail in the corner. Next, roll out the felt
approximately one half way across the roof, or about 20 - 25 feet. In windy
conditions, work with approximately one half of this distance. Pick up the roll
and pull until tight. Line up the edge of the roll with the eaves and eliminate any
wrinkles or buckles.
Hammer a nail in the top corner next to the roll when the felt is aligned straight
and is laying at with no wrinkles. Install a nail ever 6 to 8 inches across the top
of the felt. Next, install strips of nails at the center of the roll and at the bottom
of the roll across the membrane. After nailing the rst section, continue in the
same manner across the roof. Make sure to leave yourself at least 3 feet from
the edge of the roof to work. Repeat the process of straightening and fastening
the felt while being cautious of roof edges. After the felt has been fully nailed,
unwind the roll to the edge of the roof and cut the felt even with the rake. Excess
can be easily trimmed and nailed in place.
TYPICAL PHYSICAL & PERFORMANCE CHARACTERISTICS:
Size 36” x 72’
Area 216 sq. ft. approx.
Net mass of saturated felt, min. lb/100 sf 13.0
Mass of saturant, min. lb/100 sf 6.0
Mass of desaturated felt, min. lb/100 sf 5.0
% Saturation, % by wt., minimum 120
Breaking Strength, min. MD & CD, lbf/in. 30/15
Liquid Water Transmission Test Pass
APOC
®
22 Felt #30 Standard Protection
DATA SHEET
AP 22
©2010 Gardner-Gibson, Inc.
Manufactured by / Fabricado por:
Gardner-Gibson, Inc.
P.O. Box 5449, Tampa, FL 33675
See SDS for more info