To ensure the peak of your plexiglass-covered chicken run is watertight, here are a few good options:
1. Use a Ridge Cap
A polycarbonate or metal ridge cap is the best option for sealing the peak. These are designed to bridge the gap between sloped panels and prevent leaks. You can find them in clear or tinted polycarbonate to match your plexiglass.
- Overlap the ridge cap onto both sides of the plexiglass panels.
- Use butyl tape or silicone sealant along the edges where the ridge cap meets the panels.
- Secure it with screws, using rubber washer roofing screws to prevent leaks.
2. Overlapping the Plexiglass Panels
If a ridge cap isn’t an option, you can slightly overlap the plexiglass sheets at the peak:
- Cut the top edges of the panels at an angle to meet snugly.
- Allow for a 2–3″ overlap between panels.
- Apply clear silicone sealant between the overlapping edges.
- Secure with polycarbonate fasteners to avoid cracking.
3. H-Channel or U-Channel Connectors
For a cleaner look, you can use H-channel or U-channel connectors (typically made of polycarbonate or aluminum) to bridge the gap. These:
- Provide structural support.
- Prevent water seepage when used with silicone sealant inside the channel.
- Allow for slight movement due to temperature changes.
4. Flashing with Waterproof Tape
If you’re using a wooden ridge beam under the peak, you can:
Use EPDM or butyl waterproof tape along the joints for extra sealing.
Attach flashing (aluminum or polycarbonate) over the peak.