Sorption/desorption
Absorption/Desorption
- Input values of relative humidity (-) and moisture content (kg/kg) for points belonging together at the absorption (desorption) curve for the material. First point is always assumed to be (0, 0), and can be left out. The values are input in order by increasing relative humidity.
DeltaRH
- Input value(s) for the material curve in the hygroscopic area, as values of relative humidity and (-) and moisture permeability (kg/m s Pa) belonging together.
DeltaU
This table is not being used yet.
Typical values for the moisture resistance (SBI-direction 178, Buildings moisture insulation, 1993).
| Building material | Moisture resistance [m²sPa/kg] |
|---|---|
| Carpets with latex back | 1 · 109 |
| Linoleum | 25 · 109 |
| Wind-proof asphalt felt | 25 · 109 |
| Vinyl floor covering | 100 · 109 |
| Polyethylene foil | 250 · 109 |
| Polyvinyliden (2 paints.) | 250 · 109 |
| Roofing felt | 500 · 109 |
| Special membrane | 5.000 · 109 |
| Paints etc: | |
| Whitewash | 0,5 · 109 |
| Oil emulsion paint | 0,5 · 109 |
| Cement powder paint | 0,5 · 109 |
| Silicate paint | 1 · 109 |
| Artificial rubber facade paint | 1 · 109 |
| Emulsion paint | 2,5 · 109 |
| Alkyd oil paint | 15 · 109 |
| Chlorokautchuk paint | 50 · 109 |
| Polyurethane lacquer | 50 · 109 |