Tuftex
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Tuftex

Polycarbonate and Vinyl Building Panels by Onduline North America


Frequently Asked Questions about TUFTEX®

Q: Can TUFTEX be used for a greenhouse or garden cover?

A: TUFTEX PolyCarb™ panels are the perfect choice for greenhouse and garden applications and are designed to withstand exposure to direct sunlight in outdoor applications. We provide additional information about the use of TUFTEX PolyCarb panels on greenhouses in the Examples on this site.

TUFTEX PolyCarb Clear panels are well suited for greenhouse use because the panels transmit 89% of the PAR energy from daylight, which is very similar to clear glass.

The TUFTEX PolyCarb panels can withstand surface temperatures up to 270° F and down to -40° F.

Note: The support structure for the panels should be light colored and well ventilated to prevent damage to the panels from excess heat buildup between the support structures and the panels.

Q: Do TUFTEX PolyCarb panels block UV radiation?

A: Yes. The polycarbonate material in TUFTEX PolyCarb panels blocks UV radiation. Our test results for UV transmission are posted in the Examples on this site.

Q: Should I choose TUFTEX PolyCarb Translucent White or TUFTEX PolyCarb Smoke panels?

A: The TUFTEX PolyCarb Translucent White and Smoke panels both transmit about 45% of the incident light. The differences are in the absorption or reflection of the light and the scattering of the light. The TUFTEX PolyCarb Smoke panels partially absorb the incident light to reduce the light transmission. The TUFTEX PolyCarb Translucent White panels partially reflect and scatter the incident light to reduce the light transmission. The TUFTEX PolyCarb Smoke panels will absorb light and become warmer than the TUFTEX PolyCarb Translucent White panels when exposed to direct sunlight. For this reason, the TUFTEX PolyCarb Translucent White panels are a better choice when used for roofing on a sunroom or porch.

Note: For all TUFTEX panels, the support structure for the panels should be light colored and well ventilated to prevent damage to the panels from excess heat buildup between the support structures and the panels.

Q: What are the advantages of TUFTEX panels in comparison to metal corrugated panels?
A: All TUFTEX panels will not conduct electricity and will not rust. TUFTEX panels do not have the sharp edges that are common with metal panels; therefore, TUFTEX panels are easier to handle. TUFTEX panels are lightweight and easy to lift. Drilling the fastening holes through TUFTEX panels is easier than drilling holes through metal panels.
Q: Which product is best for withstanding extreme elements?
A: TUFTEX PolyCarb™ panels are made with a tough polycarbonate thermoplastic polymer. These panels can withstand surface temperatures up to 270° F and down to -40° F. The support structure for the panels must be light colored and well ventilated to prevent damage to the panels from excess heat buildup between the support structures and the panels.
Q: Are TUFTEX panels covered by a warranty?
A: TUFTEX PolyCarb™ panels are covered by a Lifetime Limited Warranty. TUFTEX UltraVinyl™ and TUFTEX SeaCoaster™ panels are not covered by a warranty.
Q: Which side of the panel should face up?
A: The TUFTEX material is no different on either side. When oriented properly for roofing, the edges of the panel will have a down slope. In this orientation, the panel corrugations will have ten crowns and nine valleys. Consistent orientation is important for proper installation.
Q: Can I install TUFTEX panels over an existing sheathing or roofing?
A: No. TUFTEX panels should not be applied over a solid decking. The panels need proper ventilation to prevent damage from heat buildup. The support structure for the panels must be light colored and well ventilated to prevent damage to the panels from excess heat buildup between the support structures and the panels.
Q: What is the proper cross-brace and rafter support for TUFTEX?
A: Install TUFTEX vinyl panels (SeaCoaster™ & UltraVinyl™) over a maximum of 24-inch span on center cross bracing. TUFTEX PolyCarb™ panels can span 36-inch on center cross bracing. SeaCoaster, UltraVinyl, and PolyCarb panels all require 24-inch spacing on rafters. Be sure to check local building code requirements before starting any project.
Q: What is the recommended slope requirement for TUFTEX?
A: A minimum slope of 1 inch per foot is recommended for proper water drainage off TUFTEX panels. A slope of 2 or 3 inches per foot will provide better drainage.
Q: Can TUFTEX panels overhang the support structure?
A: TUFTEX panels should not overhang the support structure on the sides or the top. Panels may overhang the bottom of the support structure by up to 4 inches. Excessive overhang creates improper support which could lead to damage to the panels from impact, loads or wind uplift.
Q: What type of fastener do I use?

A: Screws with a EPDM washer are the recommended fastener. Screws are recommended because tightening screws to the proper depth is easier than hammering nails to the proper depth.

The washer will reduce the opportunity for water leaks through the fastening holes and provide a cushion between the fastener and panel. The fasteners must be at least 1-3/4” long when fastening through the raised ridge of the corrugation profile.

Before installing the fasteners, drill holes in the TUFTEX panels. All fastening holes must be 1/8 inch larger than the diameter of the fastener to allow for expansion and contraction of the panels from changes in surface temperature.

Q: Where do I position the fasteners?

A: In roofing applications, fasteners should be at least 1-3/4” long and placed on the raised ridge of the corrugation profile because water will channel into the valleys of the corrugation profile. The raised ridge is also known as the crown.

In a siding or wall application, fasteners should be positioned in the panel valleys, which will be in direct contact with the supports.

All fastening holes must be predrilled. All fastening holes must be 1/8 inch larger than the diameter of the fastener to allow for expansion and contraction of the panels from changes in surface temperature.

Q: How many fasteners do I use per panel?
A:
  • 8 ft. panel = 25 fasteners
  • 10 ft. panel = 30 fasteners
  • 12 ft. panel = 35 fasteners
  • 14 ft. panel = 40 fasteners
  • 16 ft. panel = 45 fasteners
NOTE: All fastening holes must be predrilled and must be 1/8 inch larger than the diameter of the fastener to allow for expansion and contraction of the panels from changes in surface temperature.
Q: Will TUFTEX work in high wind areas?
A: Yes. In high wind areas, fasten the TUFTEX panels on every crown of the corrugations.
 
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