Speciality installations, Ceiling panel, Car wash – Crane Composites Trowels User Manual
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Speciality Installations
Ceiling Panel
LAY-IN CEILINGS
For lay-in ceiling grid systems, in order to avoid unacceptable defl ection, purchase factory pre-cut ceiling panels. To install ceiling
panels, lay into ceiling grid. Trim as necessary to accommodate lighting or other fi xtures.
Always leave a 1/8” gap between panel and grid or fi xture to allow for normal panel expansion and contraction. FRP grid systems may
require specially sized ceiling panels. See the FRP grid system installation guide. Do not attach ceiling grid through top of panels.
WHEN USING FRP PANELS IN A CEILING GRID
In order to minimize gaps between the panel and the grid system, Crane Composites strongly recommends FRP ceiling panels be used
with butt-end ceiling grid systems. Smooth FRP panels will highlight the space between the grid and a fl ush mount ceiling panel. Crane
Composites is not responsible for space between panel and grid when overlay grid systems are used. For optimal results use Sanigrid
II - Fiberglass Ceiling Grid System.
Car Wash
Using FRP panels that have been factory laminated to fl uted polypropylene is the ideal
solution for lining the interior walls of a car wash, with its high moisture environment. The
expansion and contraction due to thermal changes and extended exposure to moisture
can, however, cause any frp panel product to expand.
Bulging from expansion can be minimized if panels are installed properly. The key to a
satisfactory installation in such a high moisture environment is to provide adequate
clearance around fasteners, moldings, pipes, and junctures so the panels are free to
expand and contract. As little as 1/64” change in length can cause bulging if there is no
clearance for a panel to expand. NOTE: Bulging of panels in a car wash installation is
not cause to consider the panels defective. In general, follow the wall panel installation
instructions within this guide.
Additionally, the following guidelines will aid in completing a satisfactory high moisture
installation.
1. Limit panel length to 8’.
2. Install panels vertically.
3. Acclimate panels to the ambient temperature and moisture conditions for a minimum
of 48 hours prior to installation.
4. Install panels leaving a minimum of 1” space at both the fl oor and ceiling junctures.
5. Use mechanical fasteners (metal or nylon drive rivets). Always oversize the fastener
holes. Do not use adhesive.
6. Install wall-hung equipment and signs with standoffs (washers) between the substrate
wall and equipment, making certain that the standoffs are thick enough to expand and
contract. Drill panels 1/4” diameter larger than the standoffs
(Figure 25)
.
7. Caulk and seal all edges to keep water from getting behind the panels
(Figure 25)
.
Figure 25
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