Specification

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
MAX. LOADING
IN ACCORDANCE WITH ANSI
350
lbs
TECHNICAL
SPECIFICATION
60min FIRE-RATED ATTIC LADDER LMF 60
I. APPLICATION
The LMF60 model is a new generation attic ladder that provides access to unused
space in the attic, and at the same time functions as a fire protection for 60 minutes
(1 hour rating in accordance with NFPA 288 and ASTM E119-14.)
II. STRUCTURE
No. Element Description
1 Hatch
Insul
ated, sandwich type, white,
thickness: 3 ⁄”.
Thermal insulation thickness: 3 ⁄”.
No lock – unloading mechanism presses the hatch
to the box, opening with use of a control rod.
Equipped with a gasket that expands under
extreme heat.
2 Frame
P
inewood.
Height: 8 ⁄”.
Gasket: 3pcs.
3 Ladder
Metal
.
Ladder width: 15”.
Stringer height: 3 ⁄”.
Distance between steps:
version to room height 10’1” - 9 ⁄”,
version to room height 11’10” - 9 ½”.
4 Steps
Me
tal, equipped with anti-slip profile.
Step width: 3⁄”.
Length: 13 ⁄”.
5 Standard Accessories
Plastic ends.
Handrail:
version to room height 10’1” - metal handrail,
version to room height 11’10” - handrail with
unloading mechanism.
Rod for opening:
version to room height 10’1” - control rod to
open the hatch,
version to room height 11’10” - telescopic control
rod to open the hatch and unfold the ladder.
III. DIMENSIONS
No. Rough Opening Room height
1 22.5” x 54”
8’1”– 10’1”2 25” x 54”
3 30” x 54”
4 25” x 56.5”
9’ 7 ½” – 11’10”
5 30” x 56.5”
IV. TECHNICAL PARAMETERS
Maximum loading 350 lbs
Heat transfer coefficient R-value: 8.9
Fire rating:
ASTM E119-14
NFPA 288
60 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.
Wooden trim LXL-W
The trims are available in size 30”x56.5”
for smaller sizes have to be cut.
PCV trim LXL-PVC
The trims are available in size 30”x56.5”
for smaller sizes have to be cut.
Box extension LXN-B
The standard box height is 4”. While ordering
the
LXN please provide ladder type and size.
Upper hatch LXW-B The height of the upper hatch box is 7 ¾”.
Installation brackets LXK Maximum ceiling 15 ⁄”.
8.9
R-value
60
Minutes Fire Rating
NFPA 288 ASTM E119
Version to room height 10’1” Version to room height 11’10”