In hot-humid climates, masonry wall construction is popular because of its structural capability to withstand storms. However, since it is important to the insulation system, certain steps must be employed to ensure that the wall is properly insulated. Poorly installed insulation can lead to cold spots, moisture problems and higher energy use resulting from an increase in heating or cooling. Uncomfortable homeowners are more likely to make complaints, incur warranty expenses, and tell their friends about their dissatisfaction, which can cause damage to the company reputation. In order to ensure the comfort of a home, you should know the best practices for installing insulation.
Masonry walls can be insulated on either face as long as proper precautions are taken. However, insulating within the hollow core portion of the wall with a foam product does not provide significant insulation performance because the webs in the masonry act as major areas for conduction.
Installing rigid insulation on the exterior face is preferable because this will reduce moisture and air movement before it enters the wall. Just like interior applications, the insulation should be placed continuously. Insulation one inch thick or less allows for the installation of most exterior finishes while providing a high level of thermal performance.
Masonry construction poses different insulation challenges than frame walls. The above tips will help you ensure that insulation is installed properly, contributing to a comfortable living atmosphere and a durable home. Employing best practices when insulating masonry walls will improve customer satisfaction, increase referrals and enhance the company reputation.
For more information visit Builders Guide to Hot and Humid Climates at
the Energy and Environmental Building Association.
This information is taken from Building America’s Builders and Buyers Handbook for Improving New Home Efficiency, Comfort, and Durability in the Hot and Humid Climate, one of a series of handbooks that focuses on best practices for all U.S. climate zones. Building America's system design recommendations and process improvements can help all builders interested in re-engineering their home designs to achieve high performance. This best practices handbook helps builders develop durable, comfortable homes in hot and humid climates. The handbook contains chapters for every member of the builder's team—from managers to site planners to designers, site supervisors, the trades, and marketers. There is also a chapter to help homeowners select the best systems for their new home. To view the entire guide, click here.
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