FloAire FastWrap XL Commercial Kitchen Grease Duct Enclosure System - Manual (Page 2)

6. Storage
FastWrap XL must be stored in a dry warehouse environment
on pallets. Pallets should not be stacked.
7. Installation
FastWrap XL shall be installed by a qualified contractor in
accordance with manufacturer's instructions and design list-
ings. See figures 1 to 5 for complete details.
Materials and Equipment
• FastWrap XL blanket
• Aluminum foil tape
• Glass filament reinforced tape (optional)
• Carbon steel or stainless steel banding material, minimum
1/2" (13mm) wide, minimum 0.015" (0.4mm) thick, with steel
banding clips
• Hand banding tensioner and crimping tool
• Minimum 12 gage (3mm) steel insulation pins; steel speed
clips, minimum 1-1/2" (38mm) square or 1-1/2" (38mm) diam-
eter, or equivalent sized cup-head pins;
• Capacitor discharge stud gun
• FireMaster F2-HT-XL3 Prefabricated Door or Field Fabricated
Door Hardware
• An approved firestop sealant
General
To minimize waste, FastWrap XL blanket should be rolled out
tautly before measuring. Cut edges of the blanket shall be
taped with aluminum foil tape to prevent exposed edges of the
insulation absorbing grease and moisture in the event of a
compromised grease duct joint. Overlaps are used to block
heat transfer in the event of duct deformation resulting from
thermal expansion. Filament tape is suggested to temporarily
hold the blanket in place until steel banding or pinning is
installed to permantely secure the blanket.
A. First Layer / Single Layer Installation
1) Butt Joint for ASTM E2336 compliant grease duct
enclosure (Figure 1) - The first layer of FastWrap XL is cut
to completely wrap around the perimeter of the duct with
enough excess to provide a tight butt joint where the blan-
ket ends meet. The joints of adjacent blankets are firmly
butted against each other.
2) Overlaps required for ISO 6944 compliant single layer
air ventilation duct enclosure and two layer grease duct
enclosures installed in Canada (Figure 1) - The layer of
FastWrap XL applied directly to the duct is cut to complete-
ly wrap around the perimeter of the duct with enough
excess to overlap itself by a minimum of 3" (75mm). The
joints of adjacent blankets must overlap each other by a
minimum 3" (75mm).
B. Second Layer Where Required – (Figure 1)
The second layer of FastWrap XL is cut to completely wrap
around the perimeter of the first layer, with enough excess to
overlap itself not less than 3” (75mm). Joints in the second
layer should be staggered a minimum of 6” (50mm) from joints
on the inner layer. Adjacent blankets on the second layer must
overlap each other by not less than 3” (75mm). As an alterna-
tive to overlaps on adjacent blankets installed on the second
layer, adjacent blankets can be tightly butt jointed and wrapped
with a 6” (152mm) wide FastWrap XL collar centered over the
butt joint.
C. 2 & 3 Sided Wrap Installation (Figure 5)
When space does not allow for a complete wrap applied to the
duct on all four sides, the FastWrap XL is approved for 2 or 3
sided installations with mechanical attachment to a rated con-
crete or CMU assembly. The FastWrap XL is installed on the 2
or 3 sides of the duct as described in one of the installation
methods described in sections A or B with the starting edge of
the blanket attached to the concrete or CMU assembly and
then wrapped around the duct until the other end can be
attached to the other concrete or CMU assembly, thus encap-
sulating the duct with insulation around all accessible sides.
The blanket is to flange out onto the concrete or CMU assem-
bly. It shall be secured to the adjoining assembly with min
3/16" (5mm) diameter, 4" (102mm) long concrete anchors,
footed to a minimum 1-1/2" (38mm) wide x 3/16" (5mm) thick
steel strip/strap with pre-drilled holes spaced a maximum 10"
(254mm) on center. The steel strip is to be placed around the
entire perimeter of the duct in the exposure area. The
FastWrap XL insulation wrap is secured to the duct with mini-
mum 1/2" (13mm) wide steel banding 10-1/2" (270mm) cen-
ters. The ends of the banding are to loop into and around the
steel strips/straps that foot the blanket to the concrete floor or
wall, and tightened down.
D. Mechanical Attachment Methods for Insulation Wrap
1) Banding (Figure 1) - Minimum 1/2" (13mm) wide carbon
steel or stainless steel banding, 0.015" (0.4mm) thick, is
placed around the entire perimeter of the insulated duct on
maximum 10-1/2" (270mm) centers and1-1/2" (38mm) from
each blanket edge or 1-1/2" (38mm) from each collar edge
when using the butt joint and collar method. When banding,
filament tape can be used to temporarily hold the blanket in
place until the banding is applied. The banding is placed
around the blanket and tightened to firmly hold the
FastWrap XL in place against the duct, but not cause any
cutting or damage to the blanket.
2) Pinning (Figure 4) - If the pin pattern shown in Figure 4 is
used on all faces of the duct, then 12 Gage (0.4mm) insu-
lation pins may be used in lieu of steel banding. To prevent
blanket sag, 12 Gage (0.4mm) pins installed as shown in
Figure 4 are required in addition to banding on the bottom
of horizontal ducts where the bottom dimension is larger
than 24” (610mm), or on one side of vertical ducts where
one dimension is larger than 24” (610mm). Pins that
extend beyond the outer blanket layer shall be turned down
or the excessive length cut off to prevent sharp edges.
Shoot through pins (cup head pins) may be used in con-
junction with steel banding to prevent blanket sag.
E. Field Fabricated Access Doors
1) Field Fabricated Access Doors (Figure 3) - Each access
door assembly has four threaded rods 1/4 inch (6mm) in
diameter and 5” (127mm) in length, with one welded to
each corner of the door opening. Hollow steel tubes, 4-1/2”
(114mm) long are installed outside the access cover plate
and over the threaded rods. Four 12 gage (3mm) and 4-
1/2” (114mm) long steel insulation pins are welded to the
access cover plate to allow for installation of the three lay-
ers of FastWrap XL. One layer of FastWrap XL is cut to
approximately the same size as the access panel, and
impaled over the insulation pins on the panel. A second