Polycarbonate Sheets for all your projects
Polycarbonate Panels and Extrusions
COMMON APPLICATIONS
Sidelights
Skylights
Greenhouses
Pool & Patio Covers
Garden sheds
Canopies
Walkaway Covers
Carports
Sunrooms
Vertical Partitions & Dividers
Fencing
+ more!
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8mm Twinwall Polycarbonate Panel - Anti-Drip
Macrolux
8mm Twinwall Polycarbonate Panel - Anti-Drip
- Price
- $51.43—$231.43
Polycarbonate Extrusions for Twinwall
Macrolux
Polycarbonate Extrusions for Twinwall
- Price
- $16.90—$42.35
Neoprene Screw 1 1/2" x 5/16" Twinwall (100ct)
Hortitech
Neoprene Screw 1 1/2" x 5/16" Twinwall (100ct)
- Price
- $45
150' Tape Kit For Twin Wall Polycarbonate
Macrolux
150' Tape Kit For Twin Wall Polycarbonate
- Price
- $95
EPDM Spacer for Twin Wall Polycarbonate- Bag of 100
Hortitech
EPDM Spacer for Twin Wall Polycarbonate- Bag of 100
- Price
- $38
Virtually Unbreakable
20 times stronger than fiberglass
120 times stronger than glass
15-Year Warranty
against loss of light transmission thanks to the co-extruded UV layer fused to the PC sheet
polycarbonate main features
IQ Relax
Offers high thermal insulation without sacrificing natural light. The panels are co extruded with an advanced additive technology that adapts to weather conditions which helps maintain a comfortable temperature inside the structure.
No Drop
Anti condensate that inhibits the formation of condensation into droplets by reducing surface tension making the condensation run off the sheets into the gutter or drain.
IQ Selective
Designed for retail garden centers offering high light transmission while reflecting the solar energy making the temperature of the shopping environment very comfortable.
Light Panel Deprivation
100% Opaque multiwall polycarbonate sheet with configuration options: black, white/black or white/black/white. Designed for the end and side walls for light deprivation greenhouses.
Polycarbonate Specifications
Common Applications
Greenhouses
Garden Sheds
Lean-To
Pool & Patio Covers
Walkway Covers
Carports
Pergolas
Sunrooms
Features & Benefits
✓ Lightweight construction
✓ 80% light transmission (clear)
✓ Co-extruded UV protection layer
✓ Impact & damage resistant
✓ Self-extinguishing — ASTM E84 Class A
✓ Thermal insulation — R-value 1.73
✓ Max continuous service temp 248°F
✓ Contributes to LEED credits
✓ Anti-drip (No-Drip) coating
✓ 15-year limited warranty
Energy-saving performance helps offset heating and cooling costs year-round in greenhouse and commercial glazing applications.
Structural Considerations
Wind and snow loads must be absorbed by a suitable supporting structure. Maximum deflection should not exceed 5% of the shorter panel dimension.
Max Purlin Spacing — 4' Wide Sheet (1" deflection limit)
| Thickness | 15 lbs/ft² | 30 lbs/ft² | 45 lbs/ft² | 60 lbs/ft² |
|---|---|---|---|---|
| 6mm | 31" | 24" | 12" | — |
| 8mm ← this product | 38" | 28" | 18" | 10" |
| 10mm | 45" | 34" | 28" | 24" |
| 16mm | 75" | 43" | 36" | 30" |
Max Purlin Spacing — 6' Wide Sheet (1" deflection limit)
| Thickness | 15 lbs/ft² | 30 lbs/ft² | 45 lbs/ft² | 60 lbs/ft² |
|---|---|---|---|---|
| 6mm | 25" | 9" | — | — |
| 8mm ← this product | 36" | 26" | 12" | — |
| 10mm | 44" | 33" | 27" | 20" |
| 16mm | 60" | 40" | 36" | 30" |
Fire Ratings
| Standard | Classification |
|---|---|
| ASTM E84 | Class A (NFPA / UBC) |
| ASTM D635 | Class CC1 |
| ASTM D2843 | Low Smoke Density |
| ASTM D1929 | Self-ignition temp > 650°F |
Frame clearance must account for thermal expansion. Coefficient: 3.6 × 10⁻⁵ in/ft°F — polycarbonate expands more than glass, steel, or aluminum.
Handling & Installation
⚠ Remove UV-protective masking film only immediately after installation — not before, and never after prolonged sun exposure.
Installation
- Orient cells vertically — prevents condensation buildup
- Use aluminum or PC profiles to attach — no direct drilling
- Never use PVC profiles with polycarbonate
- Seal all cut edges with aluminum tape immediately
Storage & Cutting
- Store sheets horizontally — never lean against wall
- Do not walk on panels — use wood plank platforms
- Cut with table saw, fixed-knife cutter, or circular saw
Cleaning & Maintenance
✓ Recommended
- Non-abrasive, solvent-free neutral soap + water
- Pressure washer rinse
- Soft cloth or sponge for remaining dirt
✗ Never Use
- Gasoline, benzene, or acetone
- Abrasive cleaners or powders
- Stiff-bristle brushes or scrubbing pads
⚠ Solvents and abrasives permanently damage the UV coating and will void the warranty.
Bonding & Adhesives
Use a silicone-based sealant — Dow Corning 791 or equivalent is recommended. Avoid any adhesive containing solvents that can degrade polycarbonate.
✓ Compatible
- Neutral-cure silicone (preferred)
- Dow Corning 791 or equivalent
- Structural silicone — PC-rated
✗ Avoid
- Acetoxy-cure silicones
- Solvent-based adhesives or caulks
- Polyurethane without PC rating
Greenhouse | Lean-To | Pergola
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2
3
4
5
What are you covering?
Select your primary structure, then add endwalls if needed.
Greenhouse roof + sidewall
Panels run from ground up sidewall and over the roof
Continuous
Split at eave
Lean-to
Single slope roof + front wall, attached to existing building
Pergola / patio cover
Flat overhead panel cover on posts
Add-on
Add endwalls
Add 1 or 2 walls to your structure
Pro tips w/ dave
Polycarbonate Installation
Dave walks us through how to sheath a greenhouse endwall with twin wall polycarbonate panels and aluminum extrusions
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