joey:

What you have to understand is that a greenhouse needs good temperature controls to be cooler than outdoors at peak summer heat. Just opening a vent here and there will give you 130+ during summer. To hold it down near 100F you'll need evaporative cooling and shade cloth. So I'd think the northeast side of your home would be good for orchids and such. There are ways to increase light levels in winter; remove shade cloth, put in reflectors on the floor or north side, etc.

The south or west side of a home in AZ would be difficult unless you're working with heat loving plants.

Thank you for your feedback! I plan on installing an evaporative cooling system and a heat source as well. During the summer months I think the North side of my home would be the best location. I made a decision to go with the a BC Greenhouse with polycarb walls.

I'll have to look into reflectors. I've never heard of them.