1
4DIMENSIONSHBASE STÛV16
All components added between the H base and the external dimensions of the
insulated shell (V) must be made of non-combustible materials.
The junction between the non-combustible material under the H base and the
non-combustible floor protection in front of the fireplace must be airtight to keep
embers from getting inside the wall or under the subfloor.
The red line on the illustration shows where to place the sealing
strip.
The V* dimension indicates the minimum measurement to
cover the insulated shell.
To make it easier to affix the wall finishing, we recommend
cutting the cement board wider to reach the wall structure's
wood frame. This will help make the two sides around the H
base more rigid.
The wood frame will therefore be used to affix both the drywall
and the cement board. If a structure is added around the H
base to affix the cement board, it must be made of a non-
combustible material.
PROTECTION OF THE COMBUSTIBLE MATERIALS
AFFIXING THE WALL FINISHING
It is mandatory to extend the non-combus-
tible floor protection under the H base. It is
also mandatory to protect the wall structure
by adding non-combustible materials verti-
cally on the sides and in the back.
W
39 ¾"
V*
additional
non-combustible
mandatory
non-combustible
extension
sealing strip
NOTE
These obligations must be
respected in addition to the
minimum clearances indicated on
the previous pages.
!
cement board
MODEL V W
16-58 29 ⁄" 22 ⁄"
16-68 33 ⁄" 26 ⁄ "
16-78 37 ⁄" 30 ¾"
cement board
drywall
combustible
(drywall)
combustible
non-combustible
(cement board)
Sealing strip
.3 INSTALLING A 16-Z WITH AN H BASE
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