I have an uncovered concrete patio off the back of my house I would like to cover. The cover I want is a cathedral that I would like to tie in straight back into the existing roof line similar to this (http://jhcustompools.com/images/District_G-20100908-00009.jpg). Problem is that the Roof would have to some how tie into the L shape on the left side. Is this possible. Are there any other options. I have see where the new structure was built higher on the L side and gutters were just added to the two roofs (see pic) but I would like to stay away from this if possible. Thanks for reading!