Collingsworth is located in IECC Climate Zone 3A (Warm - Humid). Get accurate Manual J load calculations with official design temperatures for Collingsworth.
Climate Zone 3A requires precise load calculations. Upload your Collingsworth blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Collingsworth's exact design temperatures (22°F winter / 94°F summer).
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Official ASHRAE design temperatures for Collingsworth, used for accurate Manual J load calculations.
Minimum insulation and window requirements for Collingsworth per IECC 2021.
Energy Code: 2021 IECC
Upload your Collingsworth blueprint and get a professional Manual J load calculation using official Zone 3A design temperatures. First report is FREE.
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