It does block the sun some but it gets super hot inside not sure what percent it blocks but I bought A shade fabric to go over the top of mine that is 70% block I intend to leave my greenhouse up year round so im trying to protect my cover with the shade fabric
By Marsh Morrison
It's blocks direct sunlight, no sure of a percentage. Plenty of light gets in my plants are doing well. Fruit won't get burnt from the light.
By Belinda Coleridge
No it doesn’t at all. It block it from the bad Uv rays but let’s in the good
By Lionel Johnson
