FIBERWEB 300
1. PRODUCT NAME
Reinforced Metal Membrane Flashing FIBERWEB 300
2. MANUFACTURER
Fiberweb Corporation
886 Washington Street
PO Box 381
Dedham, MA 02027
Phone: (617) 461-1946
FAX: (617) 461-1314
3. PRODUCT DESCRIPTION
Basic Use: FIBERWEB 300 is a durable, lightweight and easily formed metal flashing. It is impervious to
moisture penetration; not affected by caustic alkalis found in concrete and mortar mixes since the metal is
encapsulated between layers of polyester film; has longevity of 100 years or more.
Composition and Materials: FIBERWEB 300 is a lamination of metal encapsulated in between layers of
polyester film and reinforced with fiberglass scrim; fiberglass adds tear and tensile resistance during installation;
average finished thickness is 7 mils.
Sizes: FIBERWEB 300 is available in widths of 12", 16", 18", 20", 24", 36", and 48". Custom sizes over 48" are
available with a 4-6 week lead time. Standard length is 300 lineal feet per roll.
Tape: FIBERWEB Tape is the same polyester film as in the flashing. When used to repair a puncture, it will
restore the integrity of the flashing to its physical properties.
2" x 108 lineal feet per roll.
Applicable Standards: FIBERWEB 300 conforms to the requirements of the following specifications:
� Army Corps of Engineers
� CEGS-07600
� Navy Corps of Engineers
� MIL-1-631 D
� MIL-Y-1 140H
� MIL-P-1 4591 C (MR)
� HH-C-466b
4. TECHNICAL DATA
"Mylar" polyester film is made from polyethylene terephthalate, the polymer formed by the condensation reaction
of ethylene glycol and terephthalic acid. Its unusual balance of properties enables it to serve specific engineering
functions as a physical barrier in protective coatings, as a thermal barrier, as a structural barrier and as an
electrical barrier.
"Mylar" contains no plasticizers and does not become brittle with age at its normal operating conditions.
Test Performed:
� Moisture Vapor Transmission
� Tensile
� Puncture Resistance
� Mullen Burst
� Elongation
� Cold Temperature Flex
� Asphalt Exposure
Results:
Moisture Vapor Transmission
ASTM E 96 Procedure E
0.0064 Perms
Tensile Strength (lbs/ 1 inch width)
ASTM D 828
93.6 Machine Direction
83.8 Cross Machine Direction
Tensile Strength (psi)
ASTM, D 828
8320 Machine Direction
7200 Cross Machine Direction
Puncture Resistance, Beach Units
ASTM D 781
94
Tear Strength (Mullen Burst)
ASTM D 751
164.9 lbs/inch
Tear Resistance
ASTM D 1004-66 1222 lbs/inch Machine Direction
1631 lbs/inch Cross Machine Direction
Elongation
ASTM D 412-68
5%
Cold Temperature Flex
1/8" Mandrel @ 180 Degrees
@ -100 Degrees F
1/16" Mandrel @ 180 Degrees
@ -100 Degrees F
No cracking or peeling
Asphalt Exposure
30 Days @ 160 Degrees F
No change
Corrosion Resistance:
Freshly prepared concrete specimens were prepared employing a mixture of Portland cement, sand, water,
aggregate and admixtures. A strip of FIBERWEB sheeting was placed between the freshly prepared specimens
and already existing, plain and air entrained concrete slabs. This combination remained at ambient temperature
for a period of 14 days and 28 days and then evaluated for adverse effects.
Results: No changes in 14 days
No changes in 28 days
5. INSTALLATION
FIBERWEB is designed to be a protective membrane flashing against surfaces of structural steel beams, steel
lintels and other structural steel elements buried in masonry that needs protection from corrosion caused by
penetrating moisture.
THRU-WALL Flashing: Starting 1/2" from face, bend flashing to form drip. Extend through veneer and turn up a
minimum of 8".
For C.M.U. backup wall, bed flashing in the mortar joint closest to cavity and seal with a mastic. For wood, steel
stud or framed back-up, seal into sheathing. Lap flashings around corners and at end joints a minimum of 6
inches and seal with an approved mastic.
CONCEALED Flashing: Install at windows and doors as specified in spec plans using a minimum of 6 inch
strips of flashing at jambs and extending 4" above the head. At head, apply a 6" inch strips of flashing over jamb
flashings. At sills, flash as for thru-wall installation instructions. Seal all laps with an approved mastic.
OUTSIDE CORNERS (Mitres- left to right): Wrap flashing around the corner, and starting 1/8" from the right
side of the corner, cut flashing at crease to end of flashing. Secure Flashing into wall. Wrap the adjoining flashing
from right of wall back around the flashing making the same incision as above and lap 6" over the left side.
Apply FIBERWEB tape at all laps and cut area and then a coating of an approved mastic to ensure a long term
seal.
INSIDE CORNERS (Mitres): Wrap flashing around into corner. Starting 1/8" from innermost point of corner,
make an incision in the flashing that extends to the outer edge. Wrap the left side of the incision back over the
right up to the bend and press a piece of the FIBERWEB tape over the entire length of the lap, ensuring that the
innermost corner is sealed. Apply an approved mastic over the entire taped area to ensure a long term seal.
END DAMS: Where masonry meets another wall system, form an end dam by turning flashing up at least 6".
Apply an approved mastic over the entire taped area and seal to end masonry units.
6. AVAILABILITY AND COST
Availability: Only through the following distributors:
Heckmann Building Products, Inc.
4015 W. Carroll Avenue
Chicago, IL 60624
Phone: (800) 621-4140
Hohmann & Barnard
30 Rasons Court
Hauppauge, NY 11788
Phone: (800) 645-0616
Masonry Reinforcing Corporation of America
400 Roundtree Road
Charlotte, NC 28224
Phone: (800) 849-0281
Cost: Priced below copper composites and Perm-A-Barrier products. For specific pricing contact a listed
distributor.
7. WARRANTY
FIBERWEB products meet the specifications listed and they are tested to assure conformance to the physical
properties listed herein. Fiberweb Corporation is not responsible for damage caused by improper use, handling
and installation. The foregoing warranty is all inclusive and is in lieu of all other warranties whether written, oral,
expressed or implied including any warranty or merchantability for purposes other than those advertised or
depicted herein or warranty of fitness for a particular purpose. In no event shall Fiberweb Corporation be liable for
incidental or consequential damages arising from its use.
8. MAINTENANCE
None required.
9. TECHNICAL SERVICES
Technical advice and information may be obtained by calling or writing either the manufacturer or its distributors. |
Fiberweb Corp. Div.