Ron That is a good southern greenhouse. Reading snow load, say's it will hold 4 in of dry snow. Rare dry snow is about 12 to 16 in, Typicaly 4 to 8" wet snow here. Byron : Re: [CH] Looking for a "Sparky"> > http://www.bae.ncsu.edu/programs/extension/publicat/postharv/green/green.htm l