Individuals understand how to seal the envelope of a home to correct heat loss and heat gain. They can identify, select and apply the appropriate caulking and insulating materials to areas of inadequate insulation or air leakage. They are able to safely apply insulation materials to uninsulated areas of the building envelope; such as attics, basements and crawlspaces. They know how to seal exterior doors, windows and walls. They can safely use the proper tools and materials to patch drywall.

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• Time Hours