Corner fasteners for foundation included in kit. Average assembly time 6-8 hours. Minimum amount of tools required. Two automatic roof vents are standard. No electricity required to operate vents 14' model has three roof vents as standard.
Additional vents are available for all models.
Twinwall Glazing Double wall design is the most energy efficient available. Costs less to heat. UV coated to prevent yellowing. 200 times stronger than glass. Can be cleaned with mild detergent and water.