Use and Care Manual

FINISHING, CARE &
MAINTENANCE
surfaces are more prone to scratches when cleaning due to microscopic surface particles.
Scraping with metal blades is not recommended for any glass surface since it may cause
permanent damage. Read and follow the GANA Glass Information Bulletins: Proper
Procedures for Cleaning Architectural Glass Products, and Heat Treated Surfaces are
Different before cleaning glass. The documents can be downloaded at the GANA website:
www.glasswebsite.com or by calling GANA at 7852710208.
Condensation
Condensation does not usually indicate a problem with the window. Condensation
occurs when humid air meets a cool surface, such as a window. If the surface temperature
is below freezing, then frost will form on the glass. Energy efficient homes can have a high
humidity level if not properly ventilated.
General Care
1. Window components are treated at the factory with a WDMA approved water repellent pre-
servative in accordance with industry standard WDMA I.S. 405 Water Repellent Preservative
Non Pressure Treatment for Millwork.
2. Store in a clean, dry, well-ventilated building; not in a damp, moist or extremely humid envi-
ronments.
3. While in storage, cover to keep clean.
4. Windows should be conditioned to the average prevailing moisture (humidity) of the locality
before installing.
5. Do not drop or jar window units; any jar or shock may break the glass or glazing seal or put the
window out of square.
6. Be sure frame is square before unit is installed in opening. Use a diagonal brace across cor-
ners after frame is squared. A horizontal spacer strip at midpoint of the height of the frame will
maintain equal width between jambs from head to sill. Remove brace and spacer strip after
frame is anchored into wall opening.
7. Install and fit windows accurately in accordance with good building practice and/or with
manufacturer’s instructions.
Storage & Handling
Wood is hydroscopic and dimensionally influenced by changes in moisture content caused
by changes within its surrounding environment. To assure uniform moisture exposure and
dimensional control all surfaces must be finished equally. Certain species of wood, particularly
oak, may contain extractives which react unfavorably with foreign materials in the finishing
system. All exposed wood surfaces must be sealed. Water based coatings on unfinished wood
may cause veneer splits, highlight joints and raise wood grain. For further information on
general care and maintenance of B & B Engineering Corporation products, please call us at
7157482288.
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