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2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2021 NEEA, All rights reserved <br />The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State <br />Energy Code. Commercial Provisions. <br />For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com <br />NA C402.2.8 <br />Radiant heating <br />Indicate insulation R-value behind radiant <br />system insulation <br />panels, U-bend/headers and bottom surface of <br />radiantly heated floors (other than heated slab - <br />on -grade) <br />YES C402.4.1 <br />Vertical fenestration <br />Provide total grass sf area of all above grade COMPLIANCE <br />C502.2.1 <br />maximum area <br />wall elements and rough opening sf area of all FORMS <br />vertical fenestration elements in the building, <br />for the prescriptive max allowed window -to - <br />wall ratio (WWR) calculation in the WSEC <br />envelope compliance reports; demonstrate <br />compliance for each space conditioning <br />category separately <br />C402.4.1.1 <br />Increased prescriptive <br />Provide calculations showing that not less that <br />C405.2.4.1 <br />maximum vertical <br />50% of the total conditioned floor area is <br />C502.2.1 <br />fenestration area with <br />within a daylight zone; demonstrate <br />daylight zones and <br />compliance for each space conditioning <br />controls <br />category separately <br />NA <br />Indicate in envelope plans that all lighting <br />fixtures located within daylight zones shall he <br />provided with daylight responsive controls per <br />Section C405.2.4.1 <br />NA <br />Indicate that the VT of vertical fenestration is <br />at least 1.1 times the rated SHGC or no less <br />than VT-0.55. whichever is greater <br />NA C402.4.1.3 <br />Increased prescriptiNe <br />Indicate high performance U-factors and <br />C502.2.1 <br />maximum vertical <br />SHGC values in fenestration schedules <br />fenestration area with <br />NA <br />high-performance <br />Indicate if an area -weighted U-factor is used <br />glazing <br />for multiple fenestration elements within the <br />same fenestration category per Table C402.4; <br />provide area -weighted U-factor calculation <br />C402.1.5 <br />Wall/vertical <br />Indicate if component performance with <br />fenestration target <br />target area adjustment will he used to account <br />area adjustment <br />for vertical fenestration area in excess of the <br />prescriptive maximum allowed; include target <br />area adjustment in WSEC envelope <br />compliance reports <br />NA C402.4.1 <br />Skylight maximum <br />Provide total gross sf area of roof. and rough <br />C502.2. 2 <br />area <br />opening sf area of all skylight elements in the <br />building, for the prescriptive max allowed <br />skylight -to -roof ratio (SRR) calculation in the <br />WSEC envelope compliance reports; <br />demonstrate compliance for each space <br />conditioning category separately <br />NA ('402.1.5.2 <br />Roof/skylight target <br />Indicate if component performance with <br />area adjustment <br />target area adjustment will be- used to account <br />for skylight area in excess of the prescriptive <br />maximum allowed; include target area <br />adjustment in WSEC envelope compliance <br />reports <br />YES C402.4 <br />U-factors, SHGC and <br />Indicate U-factors, SHGC and VT values in A2-1 <br />C402.4.3.4 <br />VT for all <br />fenestration schedules <br />C303.1.3 <br />fenestration <br />assemblies <br />Page 418 <br />