Check for Condensation before renting

bildersfriend

Some interesting comments here but to solve condensation issues you first need to establish the relative humidity in the dwelling.
If for example it’s above 70% you should consider introducing a Positive Input Ventilation System (PIV).
Your tenants will never adapt their lifestyles so simply take this positive action. The units can be bought from Nuaire ventilation and before any of the very strange people in here say I’m trying to sell these units I have absolutely no interest in this what so ever- simply provided technically qualified advice rather than some undertaking a Google search!
If it’s a Flat you need a Flatmaster if the property has a Loft you need a Drimaster. Very simple to fit comes with full instructions.
No more black mould!
And for everyone’s benefit there is no such phenonium as rising damp it’s a myth created by damp proofing salesman calling themselves Surveyors! In all cases its condensation or penetration.