Specification

TECHNICAL
SPECIFICATION
ATTIC LADDER LWF
I. APPLICATION
Folding attic ladders enable safe and easy access to non-inhabited spaces without
the need for installing costly and space consuming staircases. Insulated fire rated
wooden model LWF is recommended for building codes require fire protections.
II. STRUCTURE
No. Element Description
1 Hatch
insulated, sandwich type,white
thickness: 3⁄”.
thermal insulation thickness: 2⁄”.
no lock – unloading mechanism automatically
presses the hatch to the box, opening with the use
of a control rod gasket that expands under extreme
heat,
2 Frame
pinewood.
height: 8⁄”
gasket: 3 pcs
3 Ladder
pinewood
ladder width: 15”
stringer height: 3⁄”
distance between steps: 9⁄”.
4 Steps
made of pinewood, equipped with anti-slip
profile.
step width: 3⁄”
thickness: ⁄”
length: 13¼”
5 Standard Accessories
handrail in red colour.
plastic ends.
control rod for opening the hatch.
III. DIMENSIONS
No. Rough Opening Room height
1 22,5” x 47”
7’5” - 8’11”
2 25” x 47”
3 22,5” x 54”
7’11½” – 10’1” 4 25” x 54”
5 30” x 54”
IV. TECHNICAL PARAMETERS
Maximum loading 350 lbs
Heat transfer coefficient R-value: 9.5
Fire rating:
ASTM E119 43 min
NFPA 288 30 min
© FAKRO FAKRO America LLC, 39 Factory Rd. Addison, IL 60101, www.fakrousa.com
V. COMPATIBLE ACCESSORIES
Ladder Balustrade LXB-U
The balustrade is available in one standard
size 30”x54” for all attic ladders.
Metal handrail LXH
While ordering handrail please provide attic ladder
type
Installation brackets LXK Maximum ceiling 17”
Wooden trim LXL-P, LXL-W
The trims are available in one size 30”x54” for
smaller sizes have to be cut.
PCV trim LXL-PVC
The trims are available in one size 30”x54” for
smaller sizes have to be cut.
Box extension LXN
The standard box height is 4”. While ordering the
LXN please provide ladder type and size.
Upper hatch LXW The height of the upper hatch box is 7¾“.
9.5
R-value
QAI Logo Showing “C” and “US” Indicator
Effective Date: October 30, 2002 QM0803 QAI Logo with C & US Page 1 of 1
Revision Date: September 19, 2006 Revision: 1
30
Minutes Rating
NFPA 288
43
Minutes Rating
ASTM E119
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350
lbs