Reconstituted hardboard uses wood waste to create a paintable and durable door which is stronger than Luan and does no harm to the forests. Domestically grown farm wood is also used for doors. Standard exterior doors are insulated to R-5, or greater. Recycled or reconstituted content siding. Siding which has been engineered from wood fiber won't crack, split or warp and holds paint longer reducing maintenance costs.
Windows are very important in the energy efficiency of the home.
The frame material and the air space between the glass panes reduce heat loss and improve comfort. You save money by never having to paint your windows. Vinyl frame do not conduct as much heat or cold as a metal frame window. No tropical hardwoods have been used unless from certified, sustainably managed forests. Tropical hardwoods are the lungs of the planet keeping our atmosphere healthy.