quasar9
Screwfix Select
I was prompted by an OP posting on this forum that his room was not heating up in this cold spell and another worried about the level of humidity when the heating comes on.
this combined with daily reports from the press about damp mould infested flats that are not fit for living.
I half suspect that before the insulation and cladding saga, many local authorities, housing associations as well as private landlords were trying to improve things by putting up double glazed window, putting up seals on doors and closing off vents to improve thermal efficiency.
All done with good intentions.
Unfortunately, a sealed building with no prover ventilation system, traps moisture which has nowhere to go but condense on the coolest spot. With people now being advised to keep the temperature around 18/19c things can only get worse.
even in modern flats or houses, little input has gone into controlled ventilation such as heat exchanging exhaust fans. An average person loses around 400ml of water through normal activity plus cooking, bathing etc adds considerably more. This obviously needs to be vented.
A new disaster awaits only this is more subtle and insidious
this combined with daily reports from the press about damp mould infested flats that are not fit for living.
I half suspect that before the insulation and cladding saga, many local authorities, housing associations as well as private landlords were trying to improve things by putting up double glazed window, putting up seals on doors and closing off vents to improve thermal efficiency.
All done with good intentions.
Unfortunately, a sealed building with no prover ventilation system, traps moisture which has nowhere to go but condense on the coolest spot. With people now being advised to keep the temperature around 18/19c things can only get worse.
even in modern flats or houses, little input has gone into controlled ventilation such as heat exchanging exhaust fans. An average person loses around 400ml of water through normal activity plus cooking, bathing etc adds considerably more. This obviously needs to be vented.
A new disaster awaits only this is more subtle and insidious