Oldcastle BuildingEnvelope FG-3000 - Manual (Page 19)

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