Overall it is a great kit, it works very well for keeping the temp down inside the greenhouse. The reasons I gave it 4 stars are as follows: the strings that come with the tensioners are weak, maybe rotten, they rip with minimal force from bare hands, I replaced them with quality paracord and it works well. The lower tensioner mount wants you to drill a hole through the aluminum frame, and apparently the pannel, I bought the same kind of a piece that is made for wood and mounted it into my wooden subframe. If your greenhouse stands on stone, be prepared to drill into it at the bottom. One of my bars came dented, guessing its shipping is damage though. There is nothing in the instructions on the size of the holes to predrill when mounting the brackets at the top of the greenhouse, if you predrill too small you will snap the chinese screws, if you drill too big it might not hold. The side brackets are attached to the gutter, time will tell if that will mess with the gutter. And lastly there is a typo for spacing out your bottown tensioner mounts on the "back kit", space them exactly the same as the front kit, same as the mounts, 300 and 1725 I think, the typo aaid something likr 1325 ... dont do that.

I like that the shade is raised above the greenhouse so it does not interfere with the opening of the roof vents or obstruct air flow in and out of them. Working great so far. It definitely feels cooler in the greenhouse now.

Love this for top of my greenhouse. So far it has been rained on and withstood some wind. I would recommend this product for areas with little to medium wind for best results. My husband found it easy to install.