8000 Requires AssemblyEffectiveRValue to be > 0 by shorowit · Pull Request #257 · hpxmlwg/hpxml · GitHub
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Requires AssemblyEffectiveRValue to be > 0 #257

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merged 1 commit into from
Jun 11, 2021
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shorowit
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@shorowit shorowit commented May 3, 2021

Changes AssemblyEffectiveRValue from minInclusive=0 to minExclusive=0. The R-values associated with insulation materials are unchanged (i.e., they can still be zero).

An assembly effective R-value, which is documented as including air films, can never be zero. This change is proposed to prevent software tools from potentially incorrectly using a value of zero. This change helps to ensure that all software tools consistently include air films in their value.

@nmerket
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nmerket commented May 26, 2021

Technically this is a breaking change, but it's relatively minor and has a desired outcome of restricting the values to be realistic, which for most of the known users of HPXML v3 is actually a good thing. So, we're thinking this should go in v3.1 anyway.

@nmerket nmerket merged commit 5ef8783 into master Jun 11, 2021
@nmerket nmerket deleted the min_assembly_rvalue branch June 11, 2021 20:35
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