Convert SLA to ACH?

[Hayden Robinson]

For blower door test results, can someone tell me how to convert SLA to ACH? Or, what the WA State requirement, 0.00030 SLA at 50 Pa,  is in terms of ACH 50?

 

Thanks,

Hayden

 

Hayden Robinson AIA

hayden robinson architect

206.691.3445

www.HaydenRobinson.com

 

[Albert Rooks]

It's about 4.9 ACH 50. I've got the conversion somewhere... I'll look.

Albert Rooks

WestCoast Associates Inc.

--
You received this message because you are subscribed to the Google Groups "Passive House Northwest" group.
To post to this group, send email to Passive...@googlegroups.com.
To unsubscribe from this group, send email to PassiveHouseN...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/PassiveHouseNW?hl=en.

[Hayden Robinson]

Thanks.

 

That light tube looks like a very nice product. The insulation system makes good sense to me. I look forward to diving further into the performance specs.

 

Hayden

 

Hayden Robinson AIA

hayden robinson architect

206.691.3445

www.HaydenRobinson.com

 

[Markus Kolb]

WSU has a good summary of how SLA is calculated (the usual mystery numbers and lack of units, it is the U.S. construction industry, after all):

http://www.energy.wsu.edu/documents/air_leakage_testing.pdf

CFA is to the interior surface of the exterior walls. Here's a simple calculation I did for our recent Priority Green Eligibility documentation. Hope that helps!

Cheers,
Markus