User Guide

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Table 3-5: Specications for pipe insulations in ASTM E84 and CAN/ULC-S102.2 applications
*Check the rated grade of Nomalock insulations for plenum use.
Underwriters
Laboratories (UL) 2846
Until recently, piping materials
were to be tested under the
ASTM E84 method, which
was originally developed to
test building construction
components. The UL 2846
test method was developed
specically for plastic piping
materials to test ame and
smoke development.
Uponor PEX piping (up to 4")
carries the UL 2846 Standard
for Fire Test of Plastic Water
Distribution Plumbing Pipe
for Visible Flame and Smoke
Characteristics.
Approved Uponor PEX pipes
include:
• Uponor AquaPEX (up to 3")
• Wirsbo hePEX (up to 4")
Installation criteria
Piping must be covered
with a minimum ½" thick,
UL-classied pipe and
equipment covering material
as described on the marking.
Specifications for pipe insulations in ASTM E84 and CAN/ULC-S102.2 applications
Products
(minimum thickness)
ASTM E84 and CAN/ULC-S102.2
Density of insulation
Flame spread Smoke developed
½" Manson Alley-K
Fiberglass Pipe Insulation
25 or less 50 or less 4.0 pcf
½" Armaflex Composite
Pipe Insulation
25 or less 50 or less 3.0 pcf
½" Johns Manville Micro-Lok
Fiberglass Pipe Insulation
25 or less 50 or less 3.3 pcf
½" Johns Manville Micro-Lok HP
25 or less 50 or less 3.5 pcf
½" Owens Corning
VaporWick Pipe Insulation
25 or less 50 or less 4.0 pcf
½" Owens Corning
Fiberglass Pipe Insulation
25 or less 50 or less 3.5 pcf
½" Knauf Earthwool Redi-Klad
Pipe Insulation
25 or less 50 or less 3.8 pcf
½" GLT Pipe and Tank Insulation
25 or less 50 or less 4.5 pcf
½" Nomalock Pipe Insulation* 25 or less 50 or less 4.0 pcf