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Guide To Avoiding Glass Failure
Recommended Tool Kit
Thickness Gage -
This device is a hand held card or a metering type instrument that determines the
thickness of the glass when it is being inspected. Either of the devices is adequate to
determine the approximate or exact glass thickness that is being examined.
Magnifier - At least a 5 power
magnifier should be used to examine specific items around the glazing opening such as
identification marks of the manufacturer of the glass, certain logos on the glass, and
other significant items relating to the glazing system that are difficult to detect
without magnification.
16 f t. Measuring Tape - A 16 f
t. or greater measuring tape should be used to measure the overall dimensions of the
window. This tape can also be used to determine the actual layout of the building project.
6 in. Machinist Scale - This tool
can be used to measure items such as the face clearance and the dimensions around the
glazing system relative to the frame and other important parts of the glass and glazing
system close up.
Caliper - The caliper can also be
used to measure dimensions and thickness of parts of the glazing system or glass
thickness when the glass is removed or access is available to the edge of the glass.
Glass Bite Tool - This tool is
used to insert along the edge of the glass between the surface and frame, where possible,
to determine the actual engagement of the glass into the glazing frame.
Polarized Film - Polarized film
is used to observe the actual strain pattern in the glass to determine whether or not the
glass has been heat treated. A very specific pattern of dark blotches and specific traits
will be readily identified in heat-treated glass.
Dewpoint/Frost Point Tester -
This testing equipment is to be used in conjunction with dry ice and alcohol to determine
whether or not frost point and dew point conditions are of concern with regard to
insulating glass. Specific instructions on the use of this equipment are given in the text
and will be supplied with the instrument.
Ice Pick - A simple ice pick is needed
to chip the dry ice for use in the IWFA frost point device.
Gloves - A pair of leather gloves
should be worn by the operator of the IWFA frost point device to prevent cold burns to the
skin.
Plastic Bowl - A small plastic
bowl is useful to hold dry ice while it is being chipped.
Stop Watch - A stop watch is useful for
timing the contact time of the IWFA frost point device.
Towels - An absorbent towel is
useful for wiping excess alcohol that may be spilled during the use of the IWFA frost
point device.
Cooler - A small cooler is to be used
to carry dry ice to keep the ice contained while utilizing the dew point/frost point
tester.
Compass - The compass is used to
determine the actual orientation of the building project and also in determining the
direction that specific glass units are facing in the building.
Glazing Stick - The glazing stick
is a nylon or plastic tool that is used to place pressure around the perimeter of the
gasketing or sealant system to determine whether or not there is adhesion and to check the
elastic condition of the material. It is also used to help seat or remove gaskets on
occasion.
Small Hand Tools - Items such as
a screwdriver (flat and Phillips) and a set of pliers are handy to remove any items that
can be removed with ease, and when necessary, to check certain items on the glazing
system.
Glass Cleaner and Wipes - These
items are necessary to determine whether or not certain deposits or conditions on the
glass surface are permanent or temporary with regard to removal and cleaning.
Camera - A small hand held camera
should be used to photograph any specific condition that may be questionable or desired
for record purposes. The camera should also be used to take photos of areas that may be
difficult to describe or remember when taking data for the evaluation.
Clipboard/Note Pad - The
clipboard and note pad should be used to obtain pertinent data that is to be recorded in
the data collection. Also any additional sketches or notes that need to be taken during
the site inspection can be accommodated with this item.
Carrying Case
- The carrying case is used to place all the tools and other items that may be necessary
to transport to the project site. Other items that should be placed in the carrying case
would be a towel and additional wipes along with miscellaneous tools that are collected
and useful during the data collection process and inspection of the glass and glazing
system.
Guide
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