St Louis Roofing: Article About Shingle and Skylight Choices
Building or renovating a home is the perfect opportunity for homeowners to think about the whole house system's energy efficiency. This approach to energy savings takes into account the materials used in ceilings, walls, windows and roofing cover as well as how effectively the systems work together. Many factors affect the design of a whole house energy efficiency plan, including the local climate, the size of the home and its orientation with respect to the sun. It's relatively simple to install a single energy efficient system, such as air conditioning or fenestration, but expert consultation is needed when choosing multiple systems that complement one another. A St Louis roofing contractor can answer questions about energy performance in different climates and home interiors.
In general, a home that is more expensive to heat than to cool should have dark asphalt shingles and skylights with a high Solar Heat Gain Coefficient, or SHGC. The opposite is true for homes that are more expensive to cool than to heat. There are many choices of cool roof shingles that reflect solar heat radiation without reflecting the same amount of light, resulting in roofs that are cooler but not necessarily brighter.
Have a question regarding siding or TPO roofing systems? Please ask an expert contractor from ACI Exteriors, St Louis roofers today.
The most energy efficient choice for cool roof shingles is a light color, such as white or light gray, but these shingles also come in less reflective colors such as dark green and brown.
The lightest colored shingles can reduce summer rooftop temperatures by as much as 50 degrees, transferring significantly less heat to upstairs rooms and attics. These shingles don't cost much more than regular asphalt shingles, and they make home renovations eligible for federal tax rebates that can partially cover the cost of replacement. Together with the energy savings over the years, the tax incentives for installing cool roof shingles make them the most cost effective choice for homes with higher cooling bills than heating bills.
The choices for skylights are a little more complicated because skylights have many more properties that affect energy performance. Fortunately, the most energy efficient skylights come with an Energy Star label that shows all the important performance characteristics of skylights. U factor tells how much heat passes through a window by conduction while SHGC tells how much solar radiation a window traps inside. Visible transmittance is the amount of light a window provides, and the air leakage rating tells how much air passes through the tiny gaps in a new, properly installed window. The most efficient skylights typically cost more than less efficient ones, but they're also eligible for rebates and can increase the value of a home.