Table of Contents
Advertisement
FREE-STANDING MOBILE HOME
FOR MINIMUM CLEARANCES SEE PAGE 21.
Floor protector must be 3/8" minimum thickness non-combustible material or equivalent.
With the floor protector or hearth extension material specified as one layer of 2" thick brick
with a K* factor of 5.0, you may use alternate materials as long as the K* factor (s) is calculated
as follows:
FORMULA: Required thickness = (K of alternate material/K of millboard) X (thickness
of millboard)
EXAMPLE: An alternate inorganic non-combustible millboard with a K* of .9375
would require a thickness as follows:
Required thickness = (.9375/5.0) x 2 in.
K* FACTORS OF ALTERNATE MATERIALS
Material
Ceroform 126
Limestone
Concrete
Sandstone
Marble
Hearth extension or floor protector thickness above four (4) inches are generally not acceptable
due to cost, floor load capacity, and look. The alternate we recommend is using Ceroform No.
126 millboard 1/8" minimum and putting any type decorative brick or stone (any thickness) on
top of it.
* The K* factor represents thermal conductivity of a material and is time rate of heat flow
through a homogeneous material under steady-state conditions, through unit area, per unit
temperature gradient in the direction perpendicular to a surface.
These models are designed for connection to Simpson Duravent, Metal Fab and Ameritec
HT-103 2100 deg pipe.
SECTION V
INSTALLATION
FLOOR PROTECTION
= 3/8 inch
K
.21
8.0
8.0
13.0
18.0
CHIMNEY
Page 24
Required Thickness
1/8"
3.2"
3.2"
5.2"
7.2"
Hide quick links:
Advertisement
Table of Contents
