Install Instructions

ManualsBrandsHart & Cooley ManualsPlumbing Supplies6TLCFRS, 6" Firestop Radiation/Joist Shield

Model TLC chimney systems require shielded

firestops when passing through ceiling joist areas and

wall thimbles when passing through walls.

FIRESTOP/JOIST SHIELD

For all Model TLC ceiling joist penetrations below the roof

(other than that in which a ceiling support is installed), the

firestop/joist shield must be installed. (Ceiling supports

incorporate their own firestops, so no supplemental

firestopping is required.) The firestop performs the following

essential functions for both the dwelling and the chimney.

1. Together with a fully framed opening (all four

sides), it acts as a firestop to control vertical and

horizontal spread of any fire external to the chimney.

(See additional comments on firestopping.)

2. It stabilizes the chimney in the framed opening, and

defines and maintains the required 2” AIRSPACE

clearance to combustibles.

3. It provides supplemental shielding for joist areas.

INSTALLATION REQUIREMENTS

The firestop/joist shield can be installed on the top or

bottom of a joist area, but is most effective as a firestop

if installed from beneath. As such, unless otherwise

directed to do so, install firestop/joist shield in the

orientation shown in Figure 1A with the plate to the

bottom side and the shield extending up through opening

(see Figure 2).

To install:

1. Frame a level square opening for 2” clearance from

the outside of the chimney to the framing.

NOTE: If the ceiling is pitched, the joist shield needs

to be installed on the top side, and a level

frame will need to be built to ensure the joist

shield can be installed level and in a vertical

orientation (see Figure 3).

2. Place the firestop/joist shield over the chimney and

attach to the framed opening as shown in Figure 2.

3. Nail side flanges into the framing.

4. If installed on top and the firestop/joist shield is to be

installed over the flooring, cut a square opening, then

place it on top of the flooring, and nail for security.

5. Subflooring or finished floor can be placed over the

firestop/joist shield edges, provided that 2” clearance

is maintained from the chimney pipe to the flooring.

6. If the framed opening is larger than necessary, the

firestop/joist shield outer edges must be extended by

appropriate means (attaching metal plates, 26-gauge

galvanized steel or heavier) to completely block the

framed opening from any vertical airflow around the

chimney.

7. Install the lengths of chimney as necessary to extend

through the firestop, securing the joints with locking

bands (provided).

8. Continue with installation in accordance with the

instructions for the other components, as applicable.

9. Enclose the chimney below the firestop/joist shield

to prevent any accidental contact with the chimney.

Exception: Exposed portions of the chimney that

extend into the room where a freestanding appliance

is installed should not be enclosed. In an attic, to

prevent blown-in attic insulation from falling against

the chimney, either use an attic insulation shield or a

full enclosure.

Hart & Cooley, Inc.

Installation Instructions

Firestop/Joist Shield, Pitched Ceiling Plate

& Wall Thimble

Model TLC

WARNING

Failure to follow these Installation Instructions could cause

FIRE, CARBON MONOXIDE POISONING, OR DEATH. If

you are unsure of Installation requirements, call the phone

number listed on the back of these instructions.

Sheet

S-7

Read Sheet GS for important clearance and safety precautions before installing

any of the parts described in this sheet. Sheet GS is packaged with supports,

including ceiling support, wall support, insulated tee and anchor plate.

IMPORTANT: 10” to 14” are non-HT.

Summary of content (3 pages)

PAGE 1
Model TLC Installation Instructions Firestop/Joist Shield, Pitched Ceiling Plate & Wall Thimble Sheet S-7 Read Sheet GS for important clearance and safety precautions before installing any of the parts described in this sheet. Sheet GS is packaged with supports, including ceiling support, wall support, insulated tee and anchor plate. Model TLC chimney systems require shielded firestops when passing through ceiling joist areas and wall thimbles when passing through walls.
PAGE 2
Model TLC - Firestop/Joist Shield, Pitched Ceiling Plate THE FUNCTION OF FIRESTOPPING The purpose of firestopping in a chimney system is to prevent or delay the rapid spread of fire (regardless of the cause) in a home or building. Properly installed, the sheet metal firestop prevents the chimney passageway from becoming an easy pathway for fire to spread from one floor to another.
PAGE 3
Model TLC Firestop/Joist Shield, Pitched Ceiling Plate Installation Instructions NOTES: (1) The wall thimble accommodates a wall thickness of 6” to 11”. If a larger range is needed due to a thicker wall, it is permissible to field-fabricate a metal sleeve extension and rivet or screw it to the shields. (2) Ten-inch wall thimbles come with one square and one round faceplate and a piece of insulation to insulate the round faceplate, while the 12” and 14” come with two square face plates and no insulation.