Flex ISO IV Tapered Roof Insulation User Manual
Data sheet
(770) 952-1442 • ATLAS ROOFING CORPORATION • 2000 RIVEREDGE PARKWAY, SUITE 800 • ATLANTA, GA • 30328 • www.AtlasRoofing.com
DATA SHEET
PROPERTY
TEST METHOD
RESULTS
Dimensional Stability
ASTM D2126
< 2%
Compressive Strength
ASTM D1621
20 psi (140 kPa) or
25 psi (172 kPa)
Water Absorption
ASTM C209 & D2842
< 1.5%, < 3.5%
Water Vapor Transmission
ASTM E96
< 4.0 perm (228.8ng/(Pa•s•m
2
))
Product Density
ASTM D1622
Nominal 2.0 pcf (32.04 kg/m
3
)
Flame Spread
ASTM E84 (10 min.)
1
40-60
Smoke Development
ASTM E84 (10 min.)
1
50-170
Tensile Strength
ASTM D1623
> 730 psf (35 kPa)
Service Temperature
-
-100° to + 250°F
PANEL LABEL
AVERAGE
THICKNESS
SLOPE
LTTR
2
RSI
in
mm
per ft.
percent
AA
4.2
0.74
0.5-1.0
12-25
1/8"
1%
A
7.0
1.24
1.0-1.5
25-38
1/8"
1%
B
9.9
1.75
1.5-2.0
38-50
1/8"
1%
C
12.9
2.28
2.0-2.5
50-63
1/8"
1%
X
5.6
0.99
0.5-1.5
12-38
1/4"
2%
Y
11.4
2.01
1.5-2.5
38-63
1/4"
2%
Q
8.5
1.5
0.5-2.5
12-63
1/2"
4%