Duro-Last XPS Fan Fold - A (Hybrid Crush_Cut Fold) User Manual
Duro-guard, Xps fan fold – a (hybrid crush/cut fold)
Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc.
Updated: 12/4/2013
DURO-GUARD
®
XPS FAN FOLD – A
(HYBRID CRUSH/CUT FOLD)
1 of 2
www.duro-last.com 800-248-0280
Description:
Duro-Guard
®
XPS Fan Fold – A is manufactured with
a rigid extruded polystyrene (XPS) core and wrapped
with tough facers which create a durable water
resistant board. XPS is highly resistant to heat flow
and moisture penetration. The film facers are
compatible with all roof membranes offered by Duro-
Last, Inc.
Use as a recover board over:
o Granulated or smooth cap sheets.
o Smooth built-up roof systems.
o Aggregate surfaced built-up roofs (3/8 inch
aggregate, max.).
o Aged coal tar pitch roof systems.
o Single-ply membranes.
Inert, non-nutritive, and highly stable.
Contains no CFCs, HCFCs, formaldehyde or
VOC ozone depleting gases.
Superior
moisture
resistance.
Refer to Table 1 for physical properties.
Uses:
Mechanically attached roof systems.
Underwriters Laboratories Inc.:
Refer to Duro-Last’s UL Listings
(TGFU.R10128) for fire-rated assembly details
(www.ul.com).
Figure 2. Duro-Guard XPS Fan Fold – A Dimensions
Figure 1. Duro-Guard XPS Fan Fold – A
TABLE 1. TYPICAL PHYSICAL PROPERTIES
Property
Test Method
Result
Thermal Resistance,
R-Value
ASTM C 518
@75°F
1.5
°F·ft
2
·hr/Btu
Compressive Strength
(Min. psi @ 10% deflection)
ASTM D 1621
15 psi
Water Vapor Permeance
ASTM E 96
(Dessicant Method)
0.06 perm
Water Absorption
(Max. % by Volume)
ASTM C 272
0.6%
Fire Characteristics
Flame Spread
Smoke Developed
ASTM E 84
10
200
Board Dimensions:
3/8 inch thick.
4 ft x 50 ft.
200 square-foot coverage.
Fan-folded every 2 ft creating easy to handle
bundles measuring 2 ft x 4 ft x 9 inches thick.