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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Insulation of Piping Cast into Concrete

André Harms

Ecolution Consulting

LEEDuser Basic Member

1 thumbs up

Project location :

November 6, 2015

We are working on a project where a significant amount of the domestic hot water ring feed piping will be cast into the concrete walls, and the designer is querying if these pipes will need to be insulated as per ASHRAE 90.1. There do not seem to be any exceptions in the ASHRAE 90.1 for pipes in concrete, but we are just wanting to confirm that. Do pipes cast in concrete have to adhere to the same insulation requirements?

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Fri, 11/06/2015 - 14:46

No exception that I know of. Depending on where the concrete is located its ambient temperature could be very similar to the ambient temperature of the air, so the losses could be similar. Just because the pipe is in in concrete does not mean the heat loss will be significantly less as concrete has very little insulating value.

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