8 Strategies for Better Energy Efficiency in a Retrofit or Addition Part 1

Homes built as recently as the 1980s are riddled with gaps in the building envelope and have far too little insulation to measure up to modern energy efficiency standards. Retrofitting an old home will make it more comfortable, will reduce energy costs and will make it kinder on the environment. The question is; where do you get the most bang for your retrofitting buck? Here is a basic guide to help you to decide where your money is best spent.

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Air-Sealing for Effective Building Envelopes

An effective building envelope is a combination of insulating building materials and a reduction in air leakage. This reduction can be achieved by using taller wall sheathing panels and through effectively sealing air leaks. When determining which air leaks construction professionals should focus on, Dave Wolf from Owens Corning Science and Technology has conducted a study to see which leaks require the least effort and sealant and provide the highest returns in building envelope efficiency.

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Building in Tropical Storm Zones

While the Atlantic storm season have been getting worse for builders and home owners over the last few years, this year offers a brief reprieve thanks to the El Niño effect which offers strong wind and shear which makes it difficult for hurricanes to form. Predictions from the US National Oceanic and Atmospheric Association put the number of tropical storms at between 8 and 13 with 6 expected to develop into hurricanes.

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Energy Efficient Walls: HVAC Systems

Energy efficient buildings are comprised of a number of different elements including specialized wall and window assemblies, insulated doors, structural elements and mechanical systems all working together to ensure a comfortable environment all while minimizing the expense of utility consumption. Most HVAC systems are still sized by rule of thumb, but taking the guesswork out of your calculations will mean that you get the right sized system for your build.

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