Oldcastle BuildingEnvelope CW-250 - Manual (Page 5)

5 February 2012
Phone: 1-866-OLDCASTLE (653-2278)
Web Address: www.oldcastlebe.com
GENERAL INFORMATION
FIELD CONDITIONS:
All material to be installed must be plumb, level and true. Aluminum to be placed in direct contact with
masonry or incompatible material should be isolated with a heavy coat of zinc - chromate, bituminous paint
or non -metallic materia l.
After sealant is set and a representative amount of the wall has been glazed ( 250 square feet of more ) run
a water hose test to check installation. On large jobs hose test should be repeated during glazing operation.
Test should be conducted in accordance with AAMA 501.2 specifications.
Coordinate protection of installed materials with general contractors and other trades.
CLEANING MATERIALS:
Cement, plaster, terrazzo, alkaline and acid based materials used to clean masonry are very harmful to
finishes and should be removed with water and mild soap immediately or permanent staining will occur. A
spot test is recommended before any cleaning agent is used.
EXPANSION JOINTS:
Expansion joints and perimeter seals shown in these instructions and in the shop drawings are shown at
nominal size. Actual dimensions may vary due to perimeter conditions and/or differences in metal
temperature between the time of fabrication and the time of installation. For example, a 12 foot unrestrained
length of aluminum can expand or contract 3/32 of an inch over a 50 F change. Any movement potential
should be accounted for at the time of the installation.
THERMAL IMPROVEMENT SUGGESTIONS:
To maintain or improve your wall installation the following items should be considered.
A. Blinds or drapes prevent warm air from washing the window.
B. Warm air ventilators too far from the window will not adequately wash the window with air to
prevent condensation.
C. In extreme conditions the fan of the heating system should not cycle on and off, but should run
continuously.
D. Some heating systems have a water injection feature that can raise humidity levels. The higher
the humidity level the more likely condensation or frost will form. Raising the temperature and
reducing humidity will usually solve the problem.
E. On rare occasions an extremely cold storm may cause frost to appear on the glass framing. A
space heater and electric fan blowing along the plane of the window wall can reduce or
eliminate this temporary condition.
Please note:
Some portions of this product are covered by patent pending.
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