Greenstone Building Products is the exclusive Canadian manufacturer of a Part 4 Insulated Composite Envelope. It combines framing, insulation, vapor barrier and structural engineering into one assembly. The features, advantages and benefits of using Greenstone are as follows: 1. No Thermal Bridging - Improved thermal performance - Reduced operating costs 2. Expanded Polystyrene Insulation - 97% Atmospheric Air - Permanent lifetime R-Value 3. Inert Construction Materials - No VOC's - Healthy Air Quality 4. Modular Building Assembly - Reduced site time & waste - Reduced construction costs 5. Extremely Air Tight - No Drafty Areas - Increased comfort 6. Engineered Assembly - Structurally Sound - Peace of Mind Many home owners, business owners, contractors, engineers and architects are turning to Greenstone as the codes for construction are continuously getting stricter and the promotion of LEED, Net-Zero, and Passive House certified buildings is becoming common. Our largest product demand is coming from people looking to build healthy, long lasting, high performance buildings across the country. In our first year we have received multiple repeat orders and have established a reputation for Quality Control and Customer Satisfaction. Greenstone is looking forward to another exciting year in 2018 and we would love to hear from you. Please contact us if you would like to learn more.