Instructions / Assembly

Fasteners: Use Palram EPDM washered fasteners only. NEVER use nails. Predrill all fastener holes
with a 1/4" drill bit to accommodate for the thermal movement of the panel. Failure to accommodate
thermal movement will cause buckling of the sheet. Attach fasteners on the crown of every other rib
in the horizontal direction. In high wind areas, fasten on the crown of every rib. Use 2" fasteners for all
roof applications. DO NOT Overtighten Fasteners causing the rubber washer to compress.
TIP: Tighten all fasteners until they are ”snug.“ If the EPDM
washer becomes deformed, the fastener is too tight!
General Notes: While opaque panels are suitable for all weather conditions, clear panels are
to be installed for applications in mild weather conditions only, and are not recommended for
locations with high UV radiation or temperatures that exceed 130° F. Sheet corrugations at each side
must face down.
Do not install panels over lattice or existing roofing. Panels are not recommended for
enclosed structures such as greenhouses.
Ventilation: PALRUF panels are for open ventilated projects ONLY.
Installation Overview
Before You Begin
Make sure the color of all panels match. Be sure panel and horizontal closure support strip fit together...
PALRUF is comprised of round corrugations. Snow, wind and weather loads should be considered when designing the slope degree of your structure.
Before installation, check local building codes for relevant specifications and recommendations. Follow local codes at all times.
TRANSPORTATION, HANDLING AND STORAGE: Do not transport, leave or store panels in direct sun before or during installation.
For outdoor storage, cover securely with a colored tarpaulin to avoid solar heat gain between the panels. Sunlight is magnified when passing through
uncovered sheets, increasing the temperature of the sheets, which leads to degradation and distortion. Penetration of water between the sheets in storage
will accentuate this heat gain. Therefore, it is recommended to store the panels indoors. Panels will withstand heat when properly installed and ventilated.
Store the panels stacked evenly on a horizontal flat surface with longer lengths on the bottom. Do not stack other items on top of panels. If panels are not
stacked directly on floor, be sure to support evenly. IMPORTANT: If PALRUF panels have been stored at temperatures below 40° F, allow panels
to acclimate to room temperature before cutting.
FLEXIBLE ENOUGH FOR CURVED STRUCTURES: PALRUF panels may be used in curved applications, as long as the radius of the curve
is not less than 13 feet.
Installation details for typical canopy structure
INSTALLATION NOTES
To Cut Panels: Use either a circular saw with a plywood blade reversed, a utility knife and a straight edge, or a pair
of snips. Support the sheets to avoid vibration and cut at slow speed. Up to five panels can be cut with a circular saw.
IMPORTANT: If PALRUF Panels have been stored below 40° F, allow panels to acclimate to room temperature
before cutting.
Pitch: This is the amount of height in inches the rafter rises over a 12" run. Minimum slope is
1½" in 12"
(see figure D). Never install panels on flat roofs.
Purlins/Cross Supports: Cross supports (purlins) must be no more than 24" apart for PALRUF.
Cross supports should be at least 2" x 2" lumber.
Sealants: For PALRUF sheets, use any sealant adhesive recommended for PVC (a low modulus sealant that remains
flexible when cured). (See figure H).
Closure Strips: Made from either plastic, wood or foam. They are used horizontally under the panels as fastener
supports. Plastic closures are recommended because they provide the most structural rigidity. Plastic or wood vertical
closures are recommended for finishing the outside edges.
Flashings: Use a flashing suitable for your application. These are available from third party vendors.
Inasmuch as Palram Americas has no control over the use (and/or Installation method) to which others may put this material, it does not guarantee that the same results as those described herein will be obtained, Each user of the material should make their
own test to determine the suitability of the material for their own particular use. In the event of a warranty claim for product failure, Palram Americas reserves the right to inspect any or all of the sheets involved and the installation site itself while the sheets
are still in their original position and have not been removed or moved or altered in any way. For a complete copy of the PALRUF Corrugated PVC Warranty, contact Palram at 1-800-999-9459 or visit us online at palram.com/us.
©2012-19 Palram Americas, Inc. All Rights Reserved.
Pounds per Sq. Ft. 20 psf 30 psf
PALRUF Purlin Spacing 24" 16"
LOAD
SUPPORT
TABLE
PALRUF ACCESSORIES
1. PALRUF plastic vertical closure strip
7/8" H x 1-3/16" W x 24" L
PALRUF wood vertical closure strip
*
7/8" H x 1-3/16" W x 24" L
2. PALRUF plastic horizontal closure strips
3/4" x 7/8" W x 24"L
PALRUF foam horizontal closure strips
3/4" x 7/8" W x 36"L
PALRUF wood horizontal closure strips
*
3/4" x 7/8" W x 24" L
3. EPDM washered fasteners
(see lower right corner for more info.)
Note: flashings shown below are available from third parties.
*Available in select markets only.
existing brick
or masonry
counter flashing
4" minimum
EPDM
washered
fasterners
2" x 3"
purlin
ridge
board
rafter
Palruf
Panel
A
Head Flashing Detail
base
flashing
closure
strip
BE SURE TO
CAREFULLY
READ ALL
INSTRUCTIONS
rafter
ridge
board
purlin
existing house
cladding and
structure
Palruf
Panel
flashing
closure
strip
B
Head Flashing Detail
at Sided Wall
line of flashing
under siding
flashing
closure
strip
beam
rafter
existing house
cladding and
structure
purlin
post
C
Sidewall Flashing Detail
Metal Tite
Special EPDM
Washered
Fasteners
For Fastening
to Metal Framing
Wood Tite
Special EPDM
Washered
Fasteners
For Fastening to
Wood Framing
D
Ridge Detail
Palruf
Panel
Palruf
Panel
ridge board
rafter
2" x 3" purlin
amount of
pitch in inches
12"
how to measure pitch
closure
strip
continuous
vented ridge
flashing
or
A
B D
C
E
F
Typical Canopy Framing Detail
NOTE: Start panel installation from the side opposite the primary direction of the wind
Watch the DIY Products
Installation Video Online.
A video presentation of basic
handling and installation for
DIY corrugated products.
https://go.palram.com/installation-overview
existing house
cladding and
structure
end rafter
2" x 3" purlin
Palruf
panel
E
Flashing Detail
overlap
6"minimum
G
Overlap Detail
2" x 3"
purlin
closure
strip
H
Detail at Seam
For low slope
applications use a
sealant approved
as compatible with
PVC by the sealant
manufacturer
SAFETY:
Never walk on sheets.
Use a board placed across at least
three rafters to spread the load
I
Bottom Closure Detail
beam
rafter
closure
strip
overhang:
1" - 1 ½" max.
F
Rake Detail
Palruf
panel
2" x 3" purlin
rafter
½" to ¾" overhang
post
closure strip