greenhouse glazing materials some basics, pros, and cons
Post on 21-Dec-2015
222 Views
Preview:
TRANSCRIPT
Greenhouse Glazing Materials
Some basics, pros, and cons
Glazing Classifications
Type I Thin films, 2-8 mills .002 - .008” inch Polyethylene, EVA, PVC films, and polyester
Type II Flexible plastics FRP, polycarbonate, acrylics, plastic fused to
glass Type III
Rigid materials – float glass, tempered class, rolled patterned glass
Covered Production Area U.S. 2003*
Growing Area Millions ft2
Glass 69.4
Fiberglass 77.0
Film 334.6
Shade Cloth 348.2
TOTAL 829.1
*For reporting growers with sales in excess of $100,000. Source:Jerardo, Alberto. 2004. Floriculture and Nursery Crops Outlook. USDA/ERS. FLO-03
top related