TranSystems Corporation - LGM Construction

501070099 Federal Express Oakland Sort Expansion Issued for Bid 10/11
B. Insulation and adhesive materials shall have a flame spread rating of not greater than 25, and a
smoke developed rating of not greater than 50 when tested in accordance with ASTM E-84 or UL-
723 unless noted otherwise.
2.2 INSULATION SPECIFICATION NO. 1 FLEXIBLE ELASTOMER - PIPE
A. Flexible elastomer pipe insulation shall be a closed cell foamed elastomer having a density range
of 3.0 – 6.0 lbs. per cu.ft., shall have a thermal conductivity of 0.27 BTU-In/Hr-Sq Ft - Deg F or
better at 75 deg F mean temperature, and shall have a permeability of not greater than 0.08
perm-inches.
B. Insulation shall be AP/Armaflex SSPipe Insulation as manufactured by Armacell.
C. Fittings, valves, and flanges shall be insulated using field fabricated fitting covers. The material
used shall be identical to the adjacent pipe insulation as specified.
D. Adhesive for adhering all joints in flexible elastomer pipe insulation shall be rubber based contact
adhesive, Armacell 520 or 520 BLV.
2.3 INSULATION SPECIFICATION NO. 2 FIBERGLASS - PIPE
A. Fiberglass pipe insulation shall be one-piece factory molded pipe insulation having a density of not
less than 3.5 lbs. per cu.ft., and having a thermal conductivity of not greater than 0.23 BTU-In/Hr-
Sq Ft - Deg F at 75 Deg F mean temperature. Pipe insulation shall have a factory applied foil and
kraft paper fire retardant, vapor barrier jacket, having a maximum permeance to water vapor of
0.02 perms when tested in accordance with ASTM E96 Procedure A, and a minimum Beach
puncture resistance of 50 when tested in accordance with ASTM D781. Jacket shall have factory
applied self-sealing adhesive lap.
B. Fiberglass pipe insulation shall be Fiberglass 25 ASJ/SSL II as manufactured by Owens-Corning
Fiberglass Corporation, or similar by Johns Manville or Knauf.
C. Fittings, valves and flanges shall be insulated using premolded PVC fitting covers. PVC covers
shall be one piece, factory molded, vapor and moisture resistant and shall be Zeston as
manufactured by Johns Manville, or similar by Certain-Teed or Speed Line Manufacturing Co.
Factory furnished fiberglass inserts shall be utilized.
2.4 INSULATION SPECIFICATION NO. 9 FIBERGLASS DUCT WRAP
A. Ducts shall be externally insulated with commercial grade faced duct wrap insulation consisting of
inorganic blankets of glass fibers factory-laminated to a foil reinforced kraft (FRK) vapor barrier
facing. Insulation shall have a thermal conductivity of .25 BTU-In/Hr-Sq Ft-Deg F at 75 Deg mean
temperature when tested in accordance with ASTM C-518, a density of 1.5 lbs/cu ft, and shall
have no accelerating affect on corrosion of aluminum or steel.
B. Insulation shall be All Service faced duct wrap type 150 as manufactured by Owens-Corning
Fiberglas Corporation, or similar by Johns Manville, or Certain-Teed.
2.5 INSULATION SPECIFICATION NO. 10 FLEXIBLE ELASTOMER - SHEET
INSULATION 15250-2