Useful answers.
Understand the working.
Calculators and worksheets for the subjects you study and the problems you meet in practice. Work through an example, try your own values, then test the same ideas in exam practice.
Condensation condition calculator
Compare a measured surface temperature with the dew point of nearby air. Explain the limits of a single inspection-time measurement when documenting moisture concerns.
Open tool →FREE TOOLRoof pitch calculator
Relate a visible rise/run measurement to roof angle and a simple area multiplier. Explain which complex roof features the simple estimate omits.
Open tool →FREE TOOLMeasured voltage drop calculator
Document the difference between source and loaded receiving measurements. Keep the numerical observation distinct from diagnosing the underlying electrical condition.
Open tool →FREE TOOLMoisture reading comparison
Preserve instrument mode and material alongside each home-inspection moisture reading. Avoid comparing unlike scales or labelling all readings as moisture percentages.
Open tool →FREE TOOLInspection summary builder
Write a clear observation, supporting evidence, implication and follow-up for each inspected component. Explicitly retain limitations and inaccessible areas in the output.
Open tool →Tools that connect the calculation to the concept
Each tool shows its method, units and assumptions, together with two worked examples. Example values are for learning; replace them with your own measurements or documented inputs. The related study links take you to the matching certification topic on Home Inspect Cert.
Worksheets run in your browser. We do not send entered measurements or report text to a calculation service. Where export is available, you choose when to save the file locally.
Check the boundary of the answer
A useful result starts with the right inputs and an appropriate method. These tools explain what is calculated and what the method leaves out. User-supplied criteria remain identified as supplied criteria; a calculation does not automatically approve equipment, certify an inspection or establish regulatory compliance.