20'x100' Greenhouse Frame Quonset Sidewall Height/Truss Spacing:4'/5' audio visual alarms or any
Yard notes & kiln story
Description
20'x100' Greenhouse Frame Quonset Sidewall Height Truss Spacing:4' 5' audio visual alarms or any audio visual alarms or any other device that requires 12 to 24 volt AC or DC power to operate the curtain will stay open longer reducing heat and moisture build up that would have to be mechanically removed later