Step 6), Fig. 39, Intermediate horizontal – EFCO 904 Series User Manual
Page 38: Step 5), Fig. 38

Systems 901 and 903 use K-143.
Systems 902 and 904 use K-142.
HORIZONTAL BRIDGE
vertical. Correct sealing is important in this step.
The horizontal bridge is intended to prevent any water in the glazing
pocket from running down the butt glazed vertical intermediate at the
STEP 6)
BUTYL TYPE SEALANT.
SEAL AROUND BRIDGE
WITH NONHARDENING
GASKET RACE
RUN SEALANT INTO
[FIG. 39]
JDA 2/14/02
BUTT GLAZED
HORIZONTAL
MULLION
INTERMEDIATE HORIZONTAL
BUTYL TYPE SEALANT
SECTION IV D - INSTALLATION
CAPTURED VERTICAL
CAPTURED JAMB SHOWN,
INTERMEDIATE IS SIMILAR.
902 SIMILAR
904 SYSTEM SHOWN
STEP 5)
HWD1
"V" NOTCH
NOTE:
HORIZONTAL
WATER DEFLECTOR
NOTCH LEG AT
TOWARD THE EXTERIOR.
POSITION WITH NOTCH
[FIG. 38]
PAGE 36
(CONT.)
Quick Set
Water deflectors are used at both ends of horizontal intermediates and
are intended to divert any water in the glazing pocket from reaching and
eventually sitting on top of the insulated glass unit below. Water
deflectors are not used with V.B.G. mullions or with 901 and 903.
See Fig. 38 below.