Insulation & HVAC Calculators
Calculate fiberglass batt rolls, open/closed cell spray foam board feet, thermal R-values, heating & cooling BTU capacity, AC tonnage, round duct diameters, and attic ventilation.
Insulation Calculator – Fiberglass Batt & Roll Packages
→
Spray Foam Insulation Calculator – Board Feet Open/Closed Cell
→
R-Value Calculator – Thermal Resistance Assembly Value
→
BTU / HVAC Sizing Calculator – AC Tonnage & Heating BTUs
→
Duct Sizing Calculator – Airflow CFM & Round Duct Diameter
→
Attic Ventilation Calculator – Soffit & Ridge Vent Area Ratio
→
AC Tonnage Calculator – Room Size & Cooling Capacity Tons
→
Heat Loss & Gain Calculator – Manual J Building Load BTU
→
Vapor Barrier Calculator – 6mil Poly Sheeting Crawlspace Rolls
→
Thermal Comfort & Energy Efficiency Math
Sizing HVAC equipment and thermal insulation prevents uncomfortable rooms and high utility bills. Calculate required heating/cooling BTUs, AC tonnage, R-13 to R-38 insulation batts, spray foam board feet, and duct CFM airflow.