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Hands-On Trade Series · Exterior & Envelope
H22

Air Sealing & Weatherstripping

Format2–3 hours · tools in hand
CertificateCertificate of Practical Training

Where houses lose heat and how to stop it.

What we cover

  • Finding leaks
  • Sealing penetrations
  • Weatherstripping doors and windows
  • Attic and rim joist
  • Testing results

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