Duro-Last EPS Flute Fill Combo - Manual (Page 2)

Duro-Last, Duro-Bond, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc.
Created: 01/20/2014
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DURO-GUARD ® EPS FLUTE FILL COMBO
 The use of multiple layers of insulation with joints
staggered a minimum of 6 inches between layers
is recommended to eliminate thermal bridging.
 Abut panel edges together and stagger joints of
adjacent panels.
 Boards must be neatly fitted to roof deck and
around penetrations with no gaps greater than ¼
inch.
 Refer to the appropriate Duro-Last roof system
specification and detail drawings for deck
preparation and attachment requirements.
Panel Attachment:
 Panels may be attached to the roof deck using
mechanical fasteners only.
Mechanical Attachment
 When installing multiple layers (which may
include insulation, cover boards and thermal
barriers) it is acceptable to mechanically secure
through all layers.
 Only use fasteners and plates supplied by, or
approved by, Duro-Last, Inc.
Storage:
 Insulation must be protected from open flame and
kept dry at all times.
 Factory applied packaging is intended only for
protection during transit. Slit or remove the
packaging to prevent accumulation of
condensation.
 Store elevated (at least 3 inches) and completely
covered with a weatherproof covering such as a
tarpaulin.
 Do not use panels which are wet or damaged.
Limitations:
 Duro-Last, Inc. will not be responsible or liable for
any defects or problems related to building or roof
design by others, to deficiencies in construction,
to dangerous conditions on the job site, or to
improper storage, handling or installation by
others.
TABLE 1. TYPICAL THERMAL VALUES
Thickness* R-Value
Inches mm Type I Type VIII Type II
1.50 38 6.1 6.3 6.7
2.00 51 8.2 8.4 9.0
2.50
64 10.2 10.5 11.2
3.00 76 12.3 12.6 13.5
3.50 89 14.3 14.7 15.7
4.00 102 16.4 16.8 17.0
4.50 114 18.4 18.9 20.2
5.00 127 20.5 21.0 22.5
5.50 140 22.5 23.1 24.7
6.00 152 24.6 25.2 27.0
6.50 165 26.6 27.3 29.2
7.00 177 28.7 29.4 31.5
7.50 190 30.7 31.5 33.7
8.00 203 32.8 33.6 36.0
* Contact Duro-Last for additional thickness options.
TABLE 2. TYPICAL PHYSICAL PROPERTIES
Property
Test
Method
Type I
Type
VIII
Type II
Density
(nominal)
ASTM
C 303
1.00 pcf 1.25 pcf 1.50 pcf
R-Value
(per inch)
@40°F
@75°F
ASTM
C 518
or
C 177
4.17
3.85 4.25
3.92 4.55
4.17
Compressive
Strength
(10%
deformation)
ASTM
D 1621
10 – 14
psi
13 – 18
psi
15 – 21
psi
Flexural Strength
ASTM
D 203
25 – 30
psi
32 – 38
psi
40 – 50
psi
Dimensional
Stability
ASTM
D 2126
≤ 2.0% ≤ 2.0% ≤ 2.0%
Water Vapor
Permeance
ASTM E 96
2.0 – 5.0
perm
1.5 – 3.5
perm
1.0 – 3.5
perm
Water Absorption
ASTM
C 272
< 4.0% < 3.0% < 3.0%