HAWK’s greenhouses give you that place to be outside without being OUTSIDE, allowing you to practice your green thumb and protect your plants from the Texas Wind. The special Opal Plastic used does not age and turn yellow like the Fiberglass of old. Water sealant is used on all wood prior to it being wrapped protecting the wood from water damage. These amazing buildings can be ordered with or without a floor in the event you want it placed on an existing concrete slab or just on the ground.