Specifications include, but are not limited to: Through this RFP, Merrimack County intends to select a Respondent to enter into a contract to supply and deliver two (2) Hi Tunnel Greenhouses meeting or exceeding the base specifications listed in this RFP. The County is open to recommendations, pertaining to design and/or options, which provide the most benefit to the County. The successful Proposer shall provide two (2) High Tunnel Greenhouses which will be placed and assembledby Merrimack County. While the desired delivery is spring of 2023, the County understands current issues withthe global supply chain and that lead times on materials are uncertain.Specifications:Designed to withstand New England wind and snow loads.Shape: Gothic with 4 ft. bow spacing.Size: Width between 20 and 26 feet - Length between 40 and 60 feet.Peak: Desired height between 9 ft. & 12 ft.Truss supports: for each bow, one ridge purlin & wind bracing.End wall framing: Steel Preferred, wood acceptable.Side Wall: Height between 5 feet before the curve begins.Bows:shouldbeaminimum1.35”OD,17ga.Galvanizedsteel,PowdercoatedSteelorAluminumGroundposts:shouldbeaminimum1.50”14ga.abletobedriven24”inground.Strapping: required to attach either a 2”x6” or 2”x8” wooden baseboard to the frameDoors:60”inchminimumwidth,slidingbarnstyle,garagerollupstyle,orinwardopeningdoorforeachend.Covering: Minimum layer 6 mil Poly film. Gable end wire locks, single wire lock sides Roll up sides: manual operated, gearbox assist. Desired options: Covering: Double layer PolyRoof Gable peak exhaust fan W/ Thermostat control (Solar Powered DC motor)Inflation fan w/ (Solar Powered DC motor)Shade Cloth option.
