I have a recently poured, 12x36, concrete slab in the back of my two-story house. I need to know how to anchor the cover I am planning, to the house. I am planning to build a lattice type cover over a portion, and solid cover over the rest. I don't want a free standing cover. I have five footings already set in the slab. Any suggestions would be very helpful. You can e-mail me direct at RcknBaja@aol.com. Thx.