Building Elements - Heat Loss vs. Thermal Resistivity

Calculate thermal resistance in building elements like walls, floors and roofs above and below the ground for heat loss calculations.

Thermal Resistance in Building Elements

Thermal resistance values are used to calculate heat loss from buildings. Select a building element type to view and calculate its thermal resistance.

Calculator

Inputs

Building Element Type

Basement Depth Below Ground (m) (m)

Results

Internal Resistance (Ri)-- m²K/W

External Resistance (Ro)-- m²K/W

Ground/Earth Resistance (Re)-- m²K/W

Total Thermal Resistance (Rtotal)-- m²K/W

Building Element Type	Ri (m²K/W)	Ro (m²K/W)	Re (m²K/W)	Total (m²K/W)
Outside/Inside Walls - Against Environment	0.13	0.04	-	0.17
Building Parts - Others	0.13	0.13	-	0.26
Floors Near Wall (No Protection)	-	-	0.2	0.2
Floors Near Wall (With Protection)	-	-	1	1
Center-field Floors (>1m from Wall)	-	-	1.5	1.5
Basement Floors (0.5m Below)	-	-	2	2
Basement Walls (Fully Against Earth)	-	-	0.2 + 0.3h	0.2 + 0.3h
Basement Walls (Mixed)	-	-	2	2