ASHRAE HOF 26.9 has an entry for Siding: "Aluminum, steel or vinyl", hoillow-backed, Resistance 0.62. I propose to use these properties and add the option "Aluminum, steel or vinyl siding"
Same table has an entry for "Siding, Asbestos/cement, lapped", R 0.21
I propose to add en entry for "Hardboard or Asbestos/cement siding"
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planned to be included in 2019.1.3
I propose to add en entry for "Hardboard or Asbestos/cement siding"
ruleset mods checked into SVN @ r1915 adding 'All Other Siding' to Exterior Finish list for exterior wall constructions