Oldcastle BuildingEnvelope CW-250 - Manual (Page 6)

6 February 2012
C W - 2 5 0 C U R T A I N W A L L I N S T A L L A T I O N M A N U A L
Phone: 1-866-OLDCASTLE (653-2278)
Web Address: www.oldcastlebe.com
Please note that Oldcastle BuildingEnvelope™ does not control the application, nor the selection of its
product configurations, sealant or glazing materials and assumes no responsibility; therfore, it is the
responsibility of the owner, architect and installer to make these selections in strict compliance
with applicable laws and building codes.
The air and water performance of the outside glazed CW-250 system is directly related to the
completeness and integrity of both the seal installed at the shear blocks, and the glazing gasket
installed at the interior side of the glass, as well as, proper installation of all pressure plates. To
insure top performance for this system, particular note should be made by the following
procedures:
Surfaces to be sealed should be cleaned with isopropyl alcohol or solvent as recomended by
sealant manufacturer to remove all dirt and cutting oils, then dried completely. sealant at shear
blocks should be a minimum nominal 3/16" dia., placed completely around top, face and bottom of the
shear block, without misses or skips. wipe exposed surfaces clean after installing horizontal.
Inspect joint for complete sealant contact, especially where the horizontal intersects the face of
the vertical member and repair as required. consult sealant manufacturer for review and
recommendation of sealant application. follow sealant manufacturers recommendations and
literature for proper installation.
The interior glazing gasket should be installed flat and true to the vertical and horizontal
surfaces without stretching, folds, buckles or tears. corners must be cut square, sealed and
butted. to avoid damage to gasket when glazing; glass should be level and straight when setting
glass against gasket.
Vertical movement of mullions at intermediate floors requires special expansion joints and glazing
materials. See pg. 29 for details which permit ± 1/4" movement.
For designs which may require greater movement or special considerations; please contact
Oldcastle BuildingEnvelope™ engineering.
CW-1636
3/4”
3/4”
FOAM GASKET
GENERAL INSTALLATION