DuraVent Type B Guía para resolver problemas descargar pdf (Pagina 5)

5

Firestop Supports are

currently manufactured for

pipe sizes of 3" through 12"

only. Larger sizes may be

locally fabricated from sheet

metal, provided that the

mandatory 1-inch clearance

is maintained, the pipe is

adequately supported, and the

installation is acceptable to

Local Authorities. In

multistory buildings, a Firestop/

Spacer must be provided at every

floor /ceiling level other than the

first floor which requires a support.

4. Wall Thimble. For a through-

the-wall system, install the Wall

Thimble, as shown in Figure 5. The

Wall Thimble is designed to ac-

commodate walls up to 6 inches

thick. If you have thicker walls, a

sleeve extension should be fabri-

cated and attached to the existing

sleeve . Do not fill the air space

between the B-vent Pipe Section

and the Wall Thimble with insula-

tion, although an RTV-type sealant

may be applied around the flange

and nail heads if desired.

5. Pipe Assembly. Sections of

Simpson Dura-Vent round pipe are

joined together by lining up the fe-

male end of the locking lug with the

male end slot, pushing them together,

and turning clockwise to twist lock.

Refer to Figure 9. Sheet metal

screws are not needed for 3" through

PIPE SIZE

STOCK NUMBER OF

CEILING SUPPORT

FRAMED INSIDE

DIMENSIONS (X & Y)

FIG 4

3 INCH 1440 7-3/8" X 7-3/8"

4 INCH 1441 7-3/8" X 7-3/8"

5 INCH 1442 9-1/8" X 9-1/8"

6 INCH 1443 9-1/8" X 9-1/8"

7 INCH 1444 11-1/8" X 11-1/8"

8 INCH 1445 11-1/8" X 11-1/8"

10 INCH 1446 13-1/8" X 13-1/8"

12 INCH 1447 13-1/8" X 13-1/8"

Table 1

EXISTING

SHEET ROCK

FRAMING MEMBERS

REQUIRED FOR

SUPPORT

EXISTING

JOISTS

Fig 4

Fig 5

1 2 3 4 5 6 7 8 9 10 ... 19 20

INSULATION 17

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