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כיצד לחשב את Dew Point Temperature

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Dew Point Temperature Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

נוסחה

Td ≈ T - ((100 - RH) / 5) (Magnus approximation)

מדריך שלב אחר שלב

  1. 1Enter current temperature and relative humidity
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Worked Examples

קלט
75°F air temperature, 60% RH
תוצאה
Dew Point ≈ 75 - (40/5) = 75 - 8 = 67°F

Common Mistakes to Avoid

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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