Wall and roof panels – Mueller Pre-Fab User Manual
Page 17
www.muellerinc.com
B-5
Wall anD Roof Panels
Mueller’s wall and roof panels including color coated, galvalume, and galvanized provide
excellent service under widely varied conditions . All unloading and erection personnel should fully
understand that
these panels are quality merchandise which merit cautious care
in handling.
Under no circumstances should panels be handled roughly.
Packages of sheets should
be lifted off the truck with extreme care taken to ensure that no damage occurs to ends of the
sheets or to side ribs . The packages should be stored off the ground sufficiently high to allow air
circulation underneath the packages . This avoids ground moisture and deters people from walking
on the packages . One end of the package should always be elevated to encourage drainage in
case of rain .
All stacked metal panels are subject, to some degree, to localized discoloration or stain when
water is trapped between their closely nested surfaces . Mueller, Inc . exercises extreme caution
during fabricating and shipping operations to ensure that all panel stock is kept dry . However, due
to climatic conditions, water formed by condensation of humid air can become trapped between
stacked sheets . Water can also be trapped between the stacked sheets when exposed to rain .
This discoloration caused by trapped moisture is often called wet storage stain .
The stain is usually superficial and has little effect on the appearance or service life of the panels as
long as it is not permitted to remain on the panels . However, moisture in contact with the surface
of the panels over an extended period can severely attack the finish and reduce the effective
service life . Therefore, it is imperative that
all panels be inspected for moisture upon receipt
of the order.
If moisture is present, dry the panels at once and store in a dry, warm place .
caUTIon: care should always be taken when walking on panels. Use safety
lines and nets when necessary! Panels can be slippery due to paint finish,
wax, oil or atmospheric conditions. always assume panel surface is
slippery and act accordingly.