Ventilation calculations

[Nic]

Hi

who does ventilation calculations for a build is it in the  MVHR design? Apparently it’s needed for the building regs ? 
 

any ideas 

[SteamyTea]

Worth reading though Part F.

https://assets.publishing.service.gov.uk/media/61deba42d3bf7f054fcc243d/ADF1.pdf

 

It is not hard, just tedious, like most regulations.

[Canski]

We had our vents measured for LABC at the same time and by the same people that did our air tests. 

[JohnMo]

4 hours ago, Nic said:

Hi

who does ventilation calculations for a build is it in the  MVHR design? Apparently it’s needed for the building regs ? 
 

any ideas 

Mine were just a simple spreadsheet with individual inlet and outlets based on building regs. If your paying for MVHR design this should be part of the design delivery from contractor.

 

If DIY look at building regs for the gross numbers, plenty of give away spreadsheets on here. 

 

Basics are, use Passivhaus as your starter for bedrooms. 

 

When you build it near completion, you have the system commissioning done and a certificate is issued, the numbers should match.