Duro-Last EPS Fan Fold - Manual (Page 2)

Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc.
Updated: 12/4/2013
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DURO-GUARD ® EPS FAN FOLD
Installation:
 Duro-Guard EPS Fan Fold may be used
directly under the Duro-Last membrane.
Care should be taken to ensure that “bare”
EPS is never in direct contact with the
membrane. Refer to the appropriate Duro-
Last specification for slip sheet and cover
board requirements.
 Panels must be kept dry before, during and
after installation. Install only as much insulation
as can be covered the same day with
completed roofing.
 Butt 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, acceptable gravel size for overlays
and other requirements.
 Precautions must be taken to ensure that new
concrete decks have fully hydrated and do not
continue to release moisture.
Panel Attachment:
Mechanical Attachment
 Refer to Duro-Last Mechanically Attached
System Specifications and detail drawing
#1030 for approved fasteners and fastening
patterns.
 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”) 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.
Figure 3. Duro-Guard EPS Fan Fold As Recover Board
Figure 4. Partial view of facer on top surface