Test results for a rigid insulation board are given as water vapour transmission rate (132 mg/m2.h) and water vapour resistance 38.2 MNs/g.
Can I determine the water vapour diffusion resistance factor from these?
Determining water vapour diffusion resistance factor
Re: Determining water vapour diffusion resistance factor
Hi DavidG,
the conversion between various measures of water vapour resistance and resistivity is described in http://builddesk.co.uk/wp-content/uploa ... tances.pdf, for example.
Regards,
Thomas
the conversion between various measures of water vapour resistance and resistivity is described in http://builddesk.co.uk/wp-content/uploa ... tances.pdf, for example.
Regards,
Thomas