EFCO 525 Series - Manual (Page 26)

[FIG. 30]
SECTION VII - SUBSILL FABRICATION
& INSTALLATION
(CONT.)
PAGE 24
STEP 8) SPLICING THE SUBSILL
SEALANT
WM01 SPLICE
TOOL SEALANT
OVER SPLICE
FILL ANCHOR
LEG RECEPTORS 2" WIDE
AT THE SPLICE JOINT
1/4"
Verify that the subsills have been installed according to instructions
on pages 20-23. Splice areas should be centered at the vertical
mullion only. Maximum subsill length between splices is 20 feet ±. If
a splice is required, leave a 1/4" gap between the subsill ends
centered on a vertical mullion location. Use 795 or equivalent
silicone type sealant and a strip of, WM01, bond breaker tape 2"
wide and approximately 7 1/2" long to create the splice material.
Apply the 795 to both sides of the subsill ends, and fill the void
between the subsills from the exterior to the interior at the condition
and fill the sill leg receptor cavities on both subsills to a width of 2".
Ensure that the bond breaker tape is centered over the 1/4" gap, and
set the bond breaker tape into the sealant. Tool the 795 over the
bond breaker tape to create a watertight seal. If more sealant is
required to cover the edges of the bond breaker tape, apply the
required amount. Ensure that the splice joint does not interfere with
anchor legs of the sill or the leg receptors of the subsill. This is done
by making sure the splice joint is located at the center of a vertical
mullion. Refer to the shop drawings or architectural drawings for
mullion center lines.
MAKE COSMETIC SEAL
BETWEEN SUBSILLS
AFTER WM01 SPLICE AND
FRAMING ARE INSTALLED
1"
2"
525 IMPACT
FILL VOID BETWEEN
SUBSILLS BEFORE WM01
SPLICE IS ATTACHED
1"
2"
1/4"
DPS 1/2004