Weatherization and Insulation
| Protection of historic structures from the elements is one of the most important undertakings to ensure the continued use and operation of the building. This includes proper weatherization to keep water out and conditioning in. To ensure the work is successful without impacting important features of the building, proper preparation and treatments are necessary. |
14.1 Before implementing weatherization and retrofit treatments, complete a comprehensive energy audit, blower door test, infrared thermography, energy modeling, and/or daylight modeling to understand existing building performance and potential.
14.2. Begin with the least invasive and most cost-effective weatherization measures such as caulking and weather stripping before undertaking more invasive measures.
14.3. Insulate unfinished spaces such as attics, basements, and crawl spaces before removing historic plaster and trim to insulate finished spaces.
a. Ensure insulation reflects the thermal properties of the historic building materials and actual insulating needs of the specific climate.
b. Ensure the space is adequately ventilated and not susceptible to water infiltration.
c. Avoid adding insulation to the exterior of the historic building which results in loss of historic materials and/or will alter the proportion and relationship of the wall to the windows and trim.
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The above addition of blow in insulation in an unused attic space increases the thermal barrier without compromising other areas of the home.
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