A silicone sheet that lies over a screen top to slow evaporation and hold humidity in. Screen tops are the reason so many tropical enclosures will not hold humidity — they ventilate constantly, by design — and covering part of the screen is the standard fix. At 40 x 40cm it can be trimmed to fit, and several pieces can be laid over a larger enclosure.
Three warnings that matter
- UVA and UVB will not pass through this material. If it covers the area under your UVB lamp, the animal is getting no UVB at all. Cut around the lamp position.
- Do not place heat lamps directly on the silicone.
- It reduces ventilation. That is the point, but leave enough uncovered screen for genuine air exchange — a sealed, warm, wet enclosure causes respiratory problems.
Fitting it
Lay it over the screen, mark around your lights, heaters and ventilation with a ballpoint pen, then trim with scissors.
Manage humidity actively with the Repti Fogger. More in Reptile Habitat Accessories.

