Stack-assy-install, Stack system frame assembly and installation – Oldcastle BuildingEnvelope FG-3000 User Manual

Page 19

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STACK SYSTEM

FRAME ASSEMBLY AND INSTALLATION

The assembly and sealant procedures are a part of the installation sequence

because of the stacking method.
HEAD CAN:
Anchor screws should be within 4" of each side of the intended mullion loca-

tion. Head anchors AC-121-1 should be used if the height x width x design

load is 500 lbs. or more for one bay at the top of the mullion. Normally one

anchor screw at the middle of the lite or 24" O.C. is adequate for securing

the header. For unusual conditions, consult the OBE engineering depart-

ment.
SILL CAN:
Shim can a minimum 1/4” . Anchor sill can 24" O.C. and no more than 4" on

each side of intended mullion locations. Be sure weeps are located under

center line of mullion. Sill both sides of can.
HORIZONTAL HEAD AND SILL INSERT:
Members are cut 1/16” less than daylight opening to allow for incremental

expansion.
JAMB MEMBERS:
Remember all horizontals are cut 1/16” short. Do not over shim between jamb

and structure.
MULLIONS
Cut mullion length outside frame dimension 1-1/4 " . Install mullions by sliding

top end over anchor and rotating bottom into position.
RECOMMENDATION:
Prior to glazing, fill sill cavity with water to assure that end dams and anchors

are sealed. Then, run interior sill bead.

46

JULY 2011

Phone: 1-866-OLDCASTLE (653-2278)

Web Address: www.oldcastlebe.com

F L U S H G L A Z E S E R I E S 3 0 0 0 I N S T A L L A T I O N M A N U A L

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