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Structural silicone glazed mullion, Exterior – EFCO 960 Series User Manual

Page 59

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STEP 4)

Review the ’temporary’ glazing procedure presented on page 62, and

Peel off the exterior film of the butt glaze spacer tape and press the glass
onto the spacer tape. Install the 12" temporary cover pieces at the head
and sill to hold the glass units while the interior silicone is applied.

Repeat the previous steps at other butt glaze mullions in the elevation.

set the temporary glazing covers, leaving access to the vertical glass edges
for the application of the structural silicone at the vertical butt glaze mullion.

apply these steps accordingly, if required. If incorporating this procedure,

Set the glass unit and position it with the correct glass bite all around.

STEP 5)

STEP 6)

NOTE:

See page 59.

Install the setting chairs at 1/4 points in the sill members. Set the glass
units in place and install (2) glazing clips side by side 3" from the vertical
mullion and a single clip at 9" on center from the pair, at the head and sill.

Install the butt glaze spacer tape to the butt glaze mullion as shown in

vertical butt glaze mullion. Peel back ONLY 2" of the exterior film of

film until the glass unit is installed and positioned correctly.

the spacer tape at the head or the sill. DO NOT remove all of the exterior

Fig. #63 on page 58. The spacer tape will run the full length of the

as directed previously. Refer to Section VIII.

Set the assembled unit in place on the sill flashing, and anchor

SECTION IX -

mullion to the perimeter members using the S108 screw spline screws.

STEP 3)

STEP 2)

Be sure the ’ears’ of the clips are toward the glass unit at the head and sill,

STEP 1)

STRUCTURAL SILICONE

GLAZED MULLION

PAGE 57

JDA 3/2001

Refer to page 59.

and jambs. Also, it must be facing up at the horizontal intermediates.
Refer to page 61.

Cut the S.S.G. mullion to frame D.L.O. and screw spline attach the