DuraVent DuraStack Installation - Manual (Page 15)

NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
15
SUSPENSION BAND (SB)
1....Suspension. band. is. used. to. support. and. guide. the. chimney. in.
horizontal.runs...It.consists.of.a.band,.a.flexible.strap.(by.others),.a.
trolley.and.a.rail.
2....The.trolley.and.rail.allow.up.to.4”.of.travel.to.compensate.thermal.
expansion.
3....See.section.A,.Table 7.for.maximum.distance.between.two.supports.
or.guide.
4....Important: The flexible strap must be at least 3/4” wide and 0.036”
thick made of galvanized or stainless steel. YOU MUST USED TWO
LAYERS OF FLEXIBLE STRAP to attach the band to the trolley.
Figure 30 - Special considerations for exterior installation
Wall guide
Freestanding = H max
Do not install expansion
length in this area
Expansion length
Figure 32 - Trolley
Travel
Band
4”
Trolley
Rail
Flexible strap
2X Layer (By others)
THERMAL
EXP
ANSION
DIRECTION
6’ to 10’
CRADLE SUPPORT (CS)
1....Cradle.support.is.used.to.support.and.guide.the.chimney.in.horizontal.
runs...It.consists.of.a.cradle.support.and.suspension.rod.(by.others).
2....The.suspension.rods.must.attached.to.the.structural.members.to.
provide.rigidity.
3.. .Cradle.support.allows.to.stack.two.(or.more).horizontal.chimney.
runs.(See Figure 33).
4.. .Cradle. support. does. not. allow. movement. for. thermal. expansion...
This.support.should.be.used.for.low.temperature.application.
Figure 33 - Cradle Support
Rods (by others)
Cradle Support
FLOOR GUIDE (FG)
1....The.floor.guide.is.used.the.same.manner.as.the.wall.guide.but.it.is.
modified.for.use.at.floor.penetrations...See.Figure 30.(floor.guide).
Figure 31 - Floor guide (FG)
I.D. + 8” (DIS)
I.D. + 12” (DAS)
I.D. + 8” (DIS)
I.D. + 12” (DAS)