Ruffneck™ Heat Loss Calculation Tool

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Client Information
Project Name: Company Name: Contact Name:
Building Measurements
Outside Temp.: (°C) Length: (m)
Inside Temp.: (°C) Width: (m)
Air Changes/hr: (ACH) Height to Eaves: (m)
Exhaust Fan: (l/s) Gable Height: (m)
    What's Gable Height?    


Wind Speed: KPH Shielding:


Opening Unit Width Height Qty Standard Material Type U-Factor
Window 1: m
Window 2: m
Man Doors: m
Dbl Doors: m
O/H Doors: m
Louvre Vent: m
Ridge Vent: m
Other: m
Standard Material Types:
Exterior Wall Types:  
Ceiling Types:  
Floor Types: