FAQ
Are
the sheets strong?
The sheets
are made from polycarbonate resin. Polycarbonate resin is
inherently stronger than both glass and acrylic. Polycarbonate
is 200 times stronger than glass. Polycarbonate is 30 times
stronger than acrylic. It is about 15 times stronger than
modified impact acrylic.
Does
the sheet have dood thermal value?
To find
out if the thermal values of the sheets are appropriate for
the climate you live in you may choose between two main alternatives:
1. For
hot climate areas it is recommended to have a low value of
SHGC (or SC) and U-factor as mentioned in the local standards.
2. For
cold climate areas it is usually recommended to have a low
U-factor but has no requirement concerning solar heat gain.
The sheet
provides excellent insulation properties, and currently meets
thermal codes in 16mm and greater thicknesses.
What
is the weight of sheet?
These
durable sheets are very lightweigth and are easily installed
by the user.
Do
the sheets have a warranty?
Sheets
have a 10 year non-prorated warranty against yellowing and
breakage due to hail. Sheet also have a 10 year non - prorated
warranty on anti-fog coating when applied. Most other manufacturers
of multi - wall sheet provided a 10 year limited warranty.
Their warranty is prorated years 6-10.
How
are the sheets are bent (formed)?
Sheets
are usually cold formed, and MUST be thermoformed if a radii
less than the minimum radii for cold forming is desired. When
cold forming the sheets, the sheets are always bent along
the length (direction of flutes) and the length must be greater
than sheet width. The minimum cold form radius are shown below,
and can be calculated by the formula: Rmin = 175*[sheet thickness]
What
is the purpose of the protective films?
Protective
polyethylene film protects the sheets during transport and
storage from dust and scratches. Protective polyethylene film
on the top of the sheet (exterior side) has printing that
indicates the side with UV protective coating – “This
Side Out - UV Protected”. Protective polyethylene film
on the bottom of the sheet (interior side) is a plain (colored)
film. This side DOES NOT have UV protection
How
do I clean the sheets?
Sheets
– standard and specialized – will give longer
and better service life with simple cleaning. Rinse sheet
with water. Use warm soapy (mild liquid dish soap) water to
clean sheets. If any dirt remains, gently wipe off with a
soft cloth. Apply final rinse and dry with soft cloth, if
possible, to prevent water spotting. DO NOT use sponges, squeegees,
brushes or sharp instruments as they may damage the UV protective
coating.
How
do I store the sheets?
Store
in dry, dark & well ventilated area, with NO EXPOSURE
to sunlight, wind, dirt or hard objects to prevent damage.
Store on a flat clean raised surface, and placed on a soft
material (cardboard) to prevent damage. Supported, sloped
stacking is recommended. If stacked flat, stack to a maximum
height of 3 feet. Outdoors, sheets should be covered with
an opaque material (cardboard, wood, EPDM sheet etc.) that
provides protection from the sun. Outdoors, DO NOT store sheets
under flexible PVC coverings. Outdoors, prolonged storage
of sheets exposed to sun light will cause the protective polyethylene
film to bake onto the sheet, and it WILL NOT BE ABLE TO BE
REMOVED.
Do
I need special tools to cut & drill the sheets?
Polygal
Sheets can be cut and drilled using standard wood working
tools. Cutting – standard circular, jig, or table saw
with a blade having 8-12 teeth per inch. Thinner gauges can
be cut with a box knife. Drilling – standard wood drill
bits. Trimming – standard box cutting knife.
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