U-Value Calculator

Initial Parameters Target U-Value (W/m²K):

Building Dimensions

Perimeter length of external walls (m): Total floor area (m²):

Perimeter / Area ratio: -

Area ratio squared: -

U‑value of uninsulated floor: - W/m²K

Resistance of uninsulated floor: - m²K/W

Primary Insulation Insulation type: Thickness (mm):

Resistance of insulation: - m²K/W

Secondary Insulation Insulation type: Thickness (mm):

Resistance of secondary insulation: - m²K/W

Screed Selection Thickness of Gyvlon Screed (mm): Type of Gyvlon Screed:

Resistance of screed: - m²K/W

Thermal Resistance of Floor: - m²K/W

U Value of Floor: - W/m²K