Sealing the expansion mullion, Fig. 32, Fig. 35 – EFCO 945 Series User Manual
Page 31: Fig. 33, Con’t) step 5) sealing the expansion mullion
If installing an expansion mullion, apply silicone type sealant in the locations
shown below. The interior should be sealed up 6" from the subsill, and the entire
exterior joint should be sealed. Apply enough sealant so that when the expansion
mullion is collapsed, it will squeeze the sealant out and create a good seal. Clean off
any excess sealant. See Figures 32 and 33.
SEAL 6" UP
FROM
SUBSILL
SEAL ENTIRE
JOINT
SEALANT
If installing an intermediate vertical mullion, apply silicone type sealant to the
intermediate vertical mullion in the locations shown below. Both sides of the entire
mullion should be sealed. Apply enough sealant so that when the filler is snapped, it
will create a good seal. Wipe off excess sealant. See Figures 34 and 35.
STEP 6) SEALING THE INTERMEDIATE VERTICAL MULLION
SNAP IN FILLER
[FIG. 34]
8308
SEAL
ENTIRE
JOINT
[FIG. 32]
8469
8312
8309
SEALANT
SEALANT
[FIG. 35]
8308
BAB 11/2000
8469
SEALANT
[FIG. 33]
8312
SEALANT
8313
8468
SEALANT
SECTION VIII - INSTALLATION
(CON’T)
STEP 5) SEALING THE EXPANSION MULLION
INCLUDES CAPTURED AND STRUCTURAL GLAZED MULLION SYSTEMS
PAGE 29