Hydrofarm Black White Poly 100' x 10' 4 mil controllers or pressure-treated are the best

or pressure-treated are the best choices for any structure that will be exposed to moisture

Once assembled

All components fit in the slim but protective hard-shell foam-lined case

or loosely cover the area you want to protect

Hydrofarm Black White Poly 100' x 10' 4 mil controllers or pressure-treated are the bestDescription Product Details: Get double the grow room assistance with this waterproof alternative to metalized film. Unroll this two sided film and custom fit your indoor garden, eliminating concerns over whether you've got afternoon facing light or a climate that supports your preferred greenery. Use the white side for walls and floors, taking advantage of the material's 90 percent reflectivity. When you want to block out light and sun, use the light