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Historic Buildings and the Building Regulations Part L - Eng
- Thread starter Gareth Hughes
- Start date
Flyfisher
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- 10,202
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- Norfolk, UK
Hmm. The previous link I gave states:
"European CEN Standards now define air quality and specify ventilation ranges that are needed to achieve these Standards. High air quality requires ventilation in the range of 15 - 25 L/s for each occupant present in a space. . . . . Substantial research dating back over 100 years has shown that ventilation rates at less than 8 L/s per person are inadequate. The CEN values largely confirm this."
"European CEN Standards now define air quality and specify ventilation ranges that are needed to achieve these Standards. High air quality requires ventilation in the range of 15 - 25 L/s for each occupant present in a space. . . . . Substantial research dating back over 100 years has shown that ventilation rates at less than 8 L/s per person are inadequate. The CEN values largely confirm this."
Flyfisher
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- 10,202
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- Norfolk, UK
Me too!
It would be ironic if we're storing up health problems by limiting ventilation in our homes for the sake of energy efficiency. I wonder how effective those 'whole house' heat recovery systems are in practice? Would they actually reduce heat loss or would they increase ventilation for the same (or less?) heat loss?
It would be ironic if we're storing up health problems by limiting ventilation in our homes for the sake of energy efficiency. I wonder how effective those 'whole house' heat recovery systems are in practice? Would they actually reduce heat loss or would they increase ventilation for the same (or less?) heat loss?
Flyfisher
Member
- Messages
- 10,202
- Location
- Norfolk, UK
Thanks for that info.
So such systems could almost halve heating costs or allow the air change rate to be doubled without increasing heating costs.
So such systems could almost halve heating costs or allow the air change rate to be doubled without increasing heating costs.
A survey of the homes of top environmentalists has found they leak energy
http://www.timesonline.co.uk/tol/news/environment/article5734082.ece
In my case, The CO approved draft sealing of the windows, but when the BC inspector came, he said he was often against it as he was seeing loads of serious problems in historic buildings from draft sealing, especially when done in conjunction with wall insulation. Terrible problems with mould and condensation. It seems that insulating prevails over ventilation. I have plenty of other forms of ventilation, such as chimneys, floorboards etc, so I shouldn't have a problem.
The draft sealing has mane an incredible improvement. Windows no longer knock in the wind, less noise from outside and obviously, less draft.
http://www.timesonline.co.uk/tol/news/environment/article5734082.ece
In my case, The CO approved draft sealing of the windows, but when the BC inspector came, he said he was often against it as he was seeing loads of serious problems in historic buildings from draft sealing, especially when done in conjunction with wall insulation. Terrible problems with mould and condensation. It seems that insulating prevails over ventilation. I have plenty of other forms of ventilation, such as chimneys, floorboards etc, so I shouldn't have a problem.
The draft sealing has mane an incredible improvement. Windows no longer knock in the wind, less noise from outside and obviously, less draft.