Your question
My wall is cold or getting damp — what do I add, and how much?
A cold wall, condensation on the surface or a patch of mould in the corner is not a verdict. TermoFlo shows how much warmer the wall becomes once insulated and where moisture builds up inside it, so you fix the actual cause.
Go to the wall calculatorHow it works — three steps
- 1
What you enter
The current wall layers, the candidate insulation thicknesses, and the indoor and outdoor conditions.
- 2
What you get
The thermal resistance now and after insulating, plus a mark showing where moisture may form in the wall.
- 3
The decision you make
Choose the insulation type and thickness that make the wall warm and remove the moisture risk.
A worked example with real numbers
A wall with condensation near the inner surface
For a thin, uninsulated wall the calculation shows the moisture-forming zone sitting close to the inner surface — hence the damp and mould. Adding 80–100 mm of insulation shifts that zone deeper and raises the inner-surface temperature, so the condensation disappears.