Answer:1. Advanced house framing
Advanced house framing, also known as optimum value engineering, is a specific framing technique wherein a house is constructed using less lumber and waste. Advanced house framing saves energy by using less wood and more insulation. According to the U.S. Department of Energy, using advanced framing can lower material costs by $500 to $1,000 for a 1,200- to 2,400-square-foot house. It can also cut labor costs by 3-5% and annual heating and cooling costs by up to 5%.
2. Cool roofs
Cool roofs are designed to reflect sunlight and lower roofing temperatures. Cool roofs are made from a type of reflective material within roofing materials such as tiles, shingles, paint or other substances. This energy-saving technique is ideal for houses in warm climates where air conditioning costs are high all year around.
3. The right exterior doors
Choosing the right exterior door for a home should be a carefully thought-out decision. When you choose a door, you should first consider the doors' energy-performance ratings. This score lets you know how well each door does in preserving the energy in your home by trapping heat or cool air inside. Using this score to help you find the ideal door will also help you narrow down your selection and find an exterior door that best matches your taste, needs and wants.
4. Skylights
Skylights are often a feature that enters homeowners' mind when they think of improving their homes' energy efficiency. Skylights have many benefits, which makes them ideal for any home. Skylights improve houses' heating, lighting and ventilation. It is important to note that if you are considering placing skylights in your home, the U.S. Department of Energy recommends they be no larger than 5% of the floor area in rooms with several windows, and 15% of the floor area in rooms with minimal windows.
5. Window treatments
Boring curtains do more than drive your spouse crazy; they can actually help reduce energy costs in your home. By being specific in your choice of window treatments, you can reduce heat loss or keep cool air inside your home. Many factors determine window treatments' energy efficiency. For example, the type of material and color of the treatment are significant, along with how it opens and closes.
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