Oldcastle BuildingEnvelope 3000 XT Series - Manual (Page 21)

21
Phone: 1-866-OLDCASTLE (653-2278)
Web Address: www.oldcastlebe.com
1/4" 1/16"
3/8" 3/8"
MULTIPLE UNITS MAY REQUIRE THE USE OF AN EXPANSION MULLION IF THE TOTAL WIDTH OF THE OPENING EXCEEDS 24 FEET. IN
THESE CASES, LOCATE EXPANSION MULLIONS NO GREATER THAN 20 FEET ON CENTER. LOCATE SPLICE IN SILL RECEPTOR NO
MORE THAN 12 FEET ON CENTER. A MINIMUM OF 7/16" CLEARANCE BETWEEN THE JAMB AND THE SILL RECEPTOR END DAM MUST
BE PROVIDED TO ALLOW FOR FRAME INSTALLATION WHEN USING EXPANSION MULLIONS. THIS WILL ALLOW THE MINIMUM 3/8"
CLEARANCE NEEDED FOR THE NEXT FRAME ASSEMBLY TO BE ROTATED INTO POSITION AND INTERLOCKED WITH THE FRAME
ASSEMBLY ALREADY INSTALLED. ONCE IN POSITION, UNITS SHOULD BE CENTERED INTO THE OPENING TO PROVIDE EQUAL
CLEARANCE A THE JAMBS. OLDCASTLE BUILDINGENVELOPE RECOMMENDS THE USE OF THE FG-2188 FILLER IN THE HEAD AND
JAMBS TO IMPROVE THE PERIMETER SEAL.
1/4"
EXPANSION MULLION INSTALLATION
1/16"
7/16"
3/8" 3/8"
2 1/2"
7/16"
MAY 2013
S E R I E S 3 0 0 0 X T - I N S T A L L A T I O N M A N U A L