1. Frame Spacing: We recommend that the framing or trusses for your corrugated panels be placed 16"- 24" apart.

2. Flute Direction: We've found placing your panels so that the flutes run perpendicular to your frame provide the maximum amount of strength for your structure. When attaching the screws to plastic framing or wood, we recommend using our 1" screws with neoprene washers, which helps prevent water from leaking into the flutes. Our ¾" self-drilling screws are for installing panels into metal framing. We suggest placing the screws about 18" apart on the stringers and about 9" apart on the perimeter. Be careful not to over torque the screws, or you may crush the panel. The washers should just make a dimple in the plastic.

3. Cutting: Unlike most types of paneling, corrugated plastic cuts easily with a utility knife or sharp kitchen knife.

4. U-Trim: On all exposed fluting (4' side of panels) we recommend you insert ¼" of GE Silicone II "clear" caulking into flutes, to prevent water intrusion. Slide U-Trim over the ends of panels for a permanent cap. Secure U-Trim with small zip ties by poking a small hole in panels with a large paper clip or small nail. Place each zip tie about one foot apart. Put caulking in all holes you create to stop water penetration.

5. H-Channel: Panels can be joined together using H-Channel. This locks them into place and can help prevent water leakage. If H-Channel is difficult to slide on, spray grooves with a little WD-40 or Pam (vegetable oil). Also tapping on ends of H-Channel with a rubber mallet helps H-Channel slide on. Secure panels by placing screws into frame 1" from each side of H-Channel.

6. Folding: It's not necessary to cut corrugated plastic when going over roof peaks or around corners. You can score the plastic using a straight edge and a small blunt object such as a Philips screw driver (be careful not to cut the plastic), and then fold the plastic along the scored line. The plastic can be scored either in the direction of the flutes or across the flutes.

7. Changes in Size: Apply panels when the temperature is moderate (for your climate) to compensate for expansion and contraction.

8. Cleaning: Wipe down panels with soap and water once a year for maximum efficiency of light transmission.