New HHP Factsheet
HHP has produced a new technical factsheet ( TF6: Ventilation & Air-tightness ) detailing how ventilation is managed in the project homes whilst achieving very high levels of air-tightness to reduce heat losses.
Key Facts:
- Natural ventilation in conservatory spaces
- Mechanical Ventilation with Heat Recovery (MVHR) for remainder of living spaces, supported by natural ventilation in warmer weather
- Heat recovery from MVHR units approx. 70%
- HHP homes are about 10 times more air-tight than new build housing meeting current Building Regulations, Part L (2006).
This factsheet is one of a series covering various technical aspects of HHP. Other factsheets available:
- TF1: The Site and initial excavations (£3)
- TF2: In Construction (Choice of Materials) (£4)
- TF3: Thermal Design & Energy Conservation (£4)
- TF6: Ventilation & Air-tightness (£4)
- TF9: Energy Generation (£5)
- TF10: Water supply (£4)
- TF11: Waste Water Treatment (£5)
You can order any combination of these factsheets by sending a cheque made payable to ‘HHP Trading Ltd’, marking the back with the appropriate TF codes. Please add 50p/factsheet for p&p. HHP postal address is:
Hockerton Housing Project
The Watershed
Gables Drive
Hockerton
Southwell
Notts NG25 0QU
Alternatively if you are a business or an organisation simply send an email to hhp@hockerton.demon.co.uk with a list of factsheets you would like and your invoice & delivery address - we will then send out the factsheets with an invoice.
Other factsheets planned:
TF4: Embodied Energy
TF5: Hot Water generation – in draft
TF7: Second fix materials
TF8: Sunspaces