Secure the hoops with a 2by 4 the length of the house a foot down from the top on both sides instead of pipe. Then you can open the top and simply restaple the one side. this will also allow the rain to wet the plants. Opening will stop the animals from coming in and I doubt if birds will enter! and if they do you can bur a 18 inch chicken wire o fasten to the 2 by 4 s!.
I enjoy fishing ,gardening and a solar greenhouse! carpet installation repair and sales for over 45 years! I am the inventor of the Bobber With A Brain - Fishing Bobber!