Duro-Last ISO HD - Manual (Page 2)

Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc.
Updated: 10/31/2013
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DURO-GUARD ® ISO HD
Figure 1. Duro-Guard ISO II Flat On Steel Deck
 Precautions must be taken to ensure that new
concrete decks have fully hydrated and do not
continue to release moisture.
Panel Attachment:
 Panels may be attached to the roof deck using
mechanical fasteners, insulation adhesive or
hot bitumen. It is acceptable to use these
products in combination.
Mechanical Attachment
 When installing multiple layers (which may
include insulation, cover boards and thermal
barriers) it is acceptable to mechanically secure
through all layers.
 Use fasteners and plates supplied by or
approved by Duro-Last, Inc.
Adhesive Attachment
 Insulation adhesive must be supplied by Duro-
Last, Inc. Refer to the adhesive’s product data
sheet for application guidelines. Acceptable
products:
o Duro-Grip
® Insta-Stik™.
o Duro-Grip Olybond
® .
o Duro-Grip Millenium Weather-Tite
® .
o Duro-Grip CR-20.
o Subsequent layers of insulation and
approved cover boards may be attached with
insulation adhesive.
 Maximum panel dimensions are 4 ft. x 4 ft.
Hot Bitumen Attachment
 When using hot bitumen on concrete decks,
priming is necessary.
 Temperature of the bitumen shall be
approximately 50° F below the inter-ply hand
mopping EVT.
 The deck shall be dry and care must be taken
to apply the bitumen in sufficient quantity to
totally cover the available deck surface.
 To ensure embedment, the board shall also be
“stepped in” at several points while the bitumen
is still hot enough to allow positive attachment.
 Maximum panel dimensions are 4 ft. x 4 ft.
 Any roof membrane contaminated with bitumen
must be replaced.
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.
 Refer to PIMA Technical Bulletin No. 109:
Storage and Handling Recommendations for
Polyiso Roof Insulation for additional guidelines
(www.pima.org).
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.