The material is approx 6 mils thick.
Sorta. Rain readily runs off it. Sun shine will make condensation on the inside.
Depending upon lowness of temperature, we start with a heat lamp and switch to a ceramic pillar heater to better maintain inside temperature of greenhouse. Heater and support base take up some plant room but are well worth the space given up.
Yes , I didn't order it but it's in their catalogue .
The pop up green house comes with instructions. It truly does “pop up” during setup. The instructions detail where to put the support poles. Getting it to collapse is not as easy as setting it up. You’ll need to twist the greenhouse slowly and carefully as you move it into the original circle shape. Once you do it a couple of times it will be easier.
Sure, with some heat when needed .Our winter temps here are pretty mild but on cold nights I will use a 60 watt light bulb which should be enough !
I purchased mine online and had it shipped to our house. I did see them for sale at our local store but quantities were small and when I went back to get one for my sister in law, they were gone.