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HomeMy WebLinkAboutA_WSEC_Project_Envelope_Requirements_List_20221005_V1Building Envelope Requirements List, pg 1 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com Project: Building J First Floor Remodel - Phase I - 2018 WSEC , WA Date: 2022-09-30 Applies Code Section Component Compliance Information Required In Permit Documentation Location in Documents Building Department Notes SCOPE C103.1 Construction documents - General For a tenant space (first build-out) project, indicate if there is no envelope scope included in the project. YES C103.1 Construction documents - General For an alteration project, indicate if there is no envelope scope included in the project. R2.00 C402.1.1.1 Low energy spaces Identify low energy spaces on plans; include calculations if applicable that demonstrate eligibility for envelope provisions exemption C402.1.1.2 Semi-heated spaces Identify semi-heated spaces on plans, include mechanical heating system type and calculations that demonstrate eligibility for wall insulation exemption C402.1.1.3 Greenhouse spaces Identify greenhouse spaces on plans; include non-opaque assembly information and mechanical heating system type if applicable, that demonstrates eligibility for envelope provisions exemption C402.1.2 Equipment buildings Provide building sf area, average wall and roof U-factor, installed electrical and mechanical equipment information and heating setpoint restriction, that demonstrates eligibility for envelope provisions exemption NA C402.1.2.1 Standalone elevator hoistways Provide building area, average wall and roof U-factor, installed mechanical equipment information and heating setpoint restriction, that demonstrates eligibility for envelope provisions exemption C410.2 Walk-in cooler and freezer spaces Identify walk-in cooler and freezer spaces on plans; including site assembled, site constructed and prefabricated units Identify warehouse cooler and freezer spaces on plans C101.4.1 Mixed residential & commercial building Identify spaces with different occupancy requirements on plans C503.2 Change of space conditioning alteration Identify on plans existing unconditioned spaces changing to semi-heated or conditioned space, and existing semi-heated spaces changing to conditioned space; provide calculations for existing and final level of space conditioning C505.1 Change of occupancy alteration Identify on plans existing F, S and U- occupancy spaces undergoing a change in occupancy and final occupancy type Page 1/8 Building Envelope Requirements List, pg 2 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com Group R spaces permitted before July 1, 2002 that are undergoing a change to a commercial occupancy shall be identified on plans Commercial (non-Group R) occupancy spaces undergoing a change to Group R shall be identified on plans ENVELOPE PROVISIONS NA C103.2 C103.6.3 C402.1.3 C402.1.4 C402.1.5 Compliance documentation Indicate envelope thermal performance compliance path (prescriptive or component performance) and provide WSEC envelope compliance reports NA If complying via component performance, demonstrate that the Proposed Total UA is equal to or less than the Allowable Total UA If complying via total building performance, provide a list of all proposed envelope component types, areas and U-values C303.1.1 C303.1.2 Insulation identification Indicate identification mark shall be applied to all insulation materials and insulation installed such that the mark is readily observable during inspection YES C303.1.3 C402.4.3 Fenestration product rating Indicate fenestration products shall be labeled with NFRC U-factor, SHGC, VT and leakage rating, or if products do not have an NFRC rating, indicate applicable Chapter 3 default values A6.01 C303.1.1 C402.2.1 General insulation installation Indicate installation methods, thicknesses, densities and clearances to achieve the intended R-value of all insulation materials Where two or more layers of rigid insulation will be used, indicate that edge joints between layers are staggered, or exception taken C103.2 C402.2.1 Roof assembly insulation Indicate R-value(s) of cavity/continuous insulation on roof sections Indicate framing materials on roof sections Indicate method of framing for ceilings below vented attics and vaulted ceilings per A102.2 (std, adv) Provide area weighted average U-factor calculation for insulation whose thickness varies by 1 inch or less Indicate effective U-factors of tapered insulation entirely above deck per A102.2.6; include roof configuration and slope, maximum R-value at peak and minimum R- value at low point for all roof surfaces Indicate R-values for thermal spacers and each insulation layer, and liner system (LS) method for metal building roofs Page 2/8 Building Envelope Requirements List, pg 3 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com C402.2.1.1 Skylight curb insulation Indicate skylight curb insulation R-value on roof section, if not included in skylight NFRC rating NA C402.2.1.2 Rooftop HVAC equipment curbs Indicate rooftop HVAC equipment curb insulation R-value on roof section C103.2 C402.2.3 C402.2.4 C303.2.1 Above/below grade wall insulation Indicate R-value(s) of cavity/continuous insulation on wall sections Indicate framing materials on wall sections Indicate method of framing for wood construction per A103.2 (std, int, adv) Indicate material density category, wall weight and heat capacity for qualifying mass walls For qualifying ASTM C90 masonry walls, indicate loose-fill core insulation material and percentage of cores filled including grouted cores, bond beams, vertical fills, headers and any other grouted cores Indicate method of protection of exposed exterior basement/crawlspace wall insulation YES C103.2 C402.4.4 Opaque doors Indicate rated U-factor or R-value (non- swinging) on wall sections or in door schedules - applies to doors with less than 50% glazed area A6.01 NA C402.4.4 Garage doors Indicate rated U-factor for sectional and tilt- up garage doors on wall sections or in door schedules - applies to garage doors with less than 14% glazed area; all other garage doors shall comply as opaque doors C402.2.5 Floor over outdoor or unconditioned space insulation Indicate R-value(s) of cavity/continuous insulation on floor sections Indicate framing material on floor sections Indicate material density category and weight of qualifying mass floors C402.2.6 C303.2.1 Slab-on-grade floor insulation Indicate R-value of continuous insulation on wall section or foundation detail Indicate insulation extends down vertically and/or horizontally the required distance from top of slab Indicate method of protection of exposed exterior slab edge insulation Indicate R-value of continuous insulation on wall section or foundation detail Indicate insulation extends down vertically from top of slab and then horizontally under the entire slab Indicate method of protection of exposed exterior slab edge insulation Page 3/8 Building Envelope Requirements List, pg 4 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com NA C402.2.8 Radiant heating system insulation Indicate insulation R-value behind radiant panels, U-bend/headers and bottom surface of radiantly heated floors (other than heated slab- on-grade) YES C402.4.1 C502.2.1 Vertical fenestration maximum area Provide total gross sf area of all above grade wall elements and rough opening sf area of all vertical fenestration elements in the building, for the prescriptive max allowed window-to- wall ratio (WWR) calculation in the WSEC envelope compliance reports; demonstrate compliance for each space conditioning category separately R2.00 C402.4.1.1 C405.2.4.1 C502.2.1 Increased prescriptive maximum vertical fenestration area with daylight zones and controls Provide calculations showing that not less that 50% of the total conditioned floor area is within a daylight zone; demonstrate compliance for each space conditioning category separately Indicate in envelope plans that all lighting fixtures located within daylight zones shall be provided with daylight responsive controls per Section C405.2.4.1 Indicate that the VT of vertical fenestration is at least 1.1 times the rated SHGC or no less than VT-0.55, whichever is greater C402.4.1.3 C502.2.1 Increased prescriptive maximum vertical fenestration area with high-performance glazing Indicate high performance U-factors and SHGC values in fenestration schedules Indicate if an area-weighted U-factor is used for multiple fenestration elements within the same fenestration category per Table C402.4; provide area-weighted U-factor calculation C402.1.5 Wall/vertical fenestration target area adjustment Indicate if component performance with target area adjustment will be used to account for vertical fenestration area in excess of the prescriptive maximum allowed; include target area adjustment in WSEC envelope compliance reports C402.4.1 C502.2.2 Skylight maximum area Provide total gross sf area of roof, and rough opening sf area of all skylight elements in the building, for the prescriptive max allowed skylight-to-roof ratio (SRR) calculation in the WSEC envelope compliance reports; demonstrate compliance for each space conditioning category separately C402.1.5.2 Roof/skylight target area adjustment Indicate if component performance with target area adjustment will be used to account for skylight area in excess of the prescriptive maximum allowed; include target area adjustment in WSEC envelope compliance reports YES C402.4 C402.4.3.4 C303.1.3 U-factors, SHGC and VT for all fenestration assemblies Indicate U-factors, SHGC and VT values in fenestration schedules A6.01 Page 4/8 Building Envelope Requirements List, pg 5 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com YES Indicate if an area-weighted U-factor is used for multiple fenestration elements within the same fenestration category per Table C402.4; provide area-weighted U-factor calculation A6.01 YES Indicate if values are NFRC or default; if default then specify frame type, glazing layers, gap width, low-e coatings, gas-fill A6.01 YES C402.4.3 Permanent shading devices For each group of windows with similar orientation and overhang or permanent projection geometry, provide projection factor calculations (Equation C4-6) for north and non-north orientations A6.01 C402.4.2 Single story spaces requiring skylights Provide list of enclosed, single story spaces that exceed 2,500 sf; for each space identify the space use, floor area, floor to ceiling height, whether skylights are installed, and any exception taken Provide calculations for percentage of conditioned floor area located within a toplit daylight zone; if exception is taken for spaces where the total floor area minus the sidelit zone area is less than 2,500 sf, include percentage of conditioned floor area located within a sidelit daylight zone in calculations Provide calculations for percentage of skylight area in each space over 2,500 SF, OR Provide calculations for skylight effective aperture (Equation C4-5) for each space over 2,500 SF Indicate haze factor of skylight glazing material or diffuser NA C410.2 Walk-in and warehouse cooler and freezer envelope Indicate insulation R-value in cooler and freezer wall and ceiling assemblies NA Indicate cooler and freezer door insulation R- value; indicate method of minimizing infiltration (strip doors, curtains, spring- hinged doors, etc); provide automatic door closure (or note exception taken) NA For transparent reach-in doors and fixed windows, indicate number of glass panes (double or triple pane); identify whether the interstitial spaces between panes is filled with inert gas or if panes are heat-reflective treated glass ADDITIONAL EFFICIENCY CREDITS - ENHANCED ENVELOPE PERFORMANCE C406.10 Enhanced envelope performance To comply with additional efficiency credit, demonstrate envelope thermal performance compliance via component performance; provide WSEC envelope compliance reports that demonstrate Proposed Total UA is 15% lower than the Allowable Total UA Page 5/8 Building Envelope Requirements List, pg 6 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com AIR LEAKAGE NA C402.5.1.1 Air barrier construction and sealing Identify location and provide diagram of continuous air barrier in plans and sections YES Provide details for all joints, transitions in materials, penetrations in air barrier and note method of sealing (caulked, gasketed, or other approved method) A6.01 NA C402.5.3 C402.1.3 C402.1.4 Rooms containing fuel burning space conditioning appliances For room(s) located within the conditioned space that contain non-direct vent fuel- burning appliances that require outdoor air for combustion, indicate method of isolation from the conditioned space; include sealing of walls, floor and ceiling of room, doorway gasketting and sealing around ductwork and piping penetrations NA Indicate walls, floor and ceiling of the room envelope are insulated to the same level required for exterior envelope, and combustion air ductwork that passes thru conditioned space is insulated to at least R-8 NA C402.5.4 Doors and access openings to shafts, chutes, stairways and elevator lobbies Indicate locations of all doors and access openings to shafts, chutes, stairways and elevator lobbies NA Indicate method of sealing of these openings (gasketing, weatherstripping, other sealing method); or exception taken NA C402.5.5 C403.7.8 Outdoor air intakes, exhausts and relief openings Indicate locations of all stairway enclosure, elevator shaft and building pressurization relief openings, outside air intakes and exhaust openings NA Note in envelope plans that all relief, outside air intake and exhaust openings shall be provided with dampers in accordance with Mechanical Section C403.7.8 NA C402.5.8 Recessed lighting in building envelope Indicate method of sealing between light fixture housing and wall or ceiling NA Note in envelope plans that all recessed lighting fixtures shall be IC rated and have an air leakage rating not greater than 2 cfm per ASTM E283 test; include these requirements in lighting fixture schedules NA C402.5.6 Loading dock seals Indicate weather seal at cargo and loading dock doors NA C402.5.7 Vestibules Indicate locations and dimensions of vestibules for building entrances; also indicate vestibule information for exit-only doors in buildings where separate doors for entering and exiting are provided NA Indicate locations of all building entrances and exit-only doors provided with an air curtain in lieu of a vestibule Page 6/8 Building Envelope Requirements List, pg 7 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com NA Indicate exception and criteria utilized for all building entrances and exit-only doors that do not have a vestibule or air curtain NA Indicate required performance for air curtains installed per Exception 7 NA For unconditioned vestibules, indicate which envelope assembly (interior or exterior) complies with the requirements for a conditioned space NA C103.2 C402.5.1.2C 402.5.1.2.1 R402.4.1.2 Building enclosure air leakage test Indicate in project documents that building enclosure air leakage testing is required for WSEC compliance R2.00 NA Provide area calculations that account for all six sides of the air barrier boundaries R2.00 For commercial buildings, indicate that building enclosure air leakage testing shall be performed per ASTM C779 (or equivalent method approved by the code official) and the target leakage rate is 0.25 cfm/ft2 (1.5 L/s*m2) at 0.3 in. wg (75 Pa) If the building is mixed residential / commercial and three stories or less above grade plane, indicate which building enclosure air leakage test procedure will be used for the Group R-2 / R-3 areas (Section R402.4.1.2 or C402.5.1.2); if per R402.4.1.2, indicate that the target leakage rate is 5 air changes per hour at 0.2 in. wg (50 Pa) Include the following requirements in project documents: (1) Submit building enclosure air leakage test reports to jurisdiction and owner; (2) If initial test result exceeds 0.25 cfm/ft2 (1.5 L/s*m2), indicate that inspection and all practical corrective actions be completed and documented in the air leakage test report; (3) If initial test result exceeds 0.40 cfm/ft2 (2.0 L/s*m2), indicate that corrective actions shall also include re-testing; (4) Indicate that corrective measures and retesting must be repeated until the test result is 0.40 cfm/ft2 (2.0 L/s*m2) or less; (4) Include air barrier test report in project close out documentation provided to building owner. ADDITIONAL EFFICIENCY CREDITS - REDUCED AIR INFILTRATION C406.9 Reduced air infiltration To comply with additional efficiency credit, indicate in project documents that the building enclosure air leakage test results shall not exceed 0.17 cfm/ft2 at 0.3 in. wg (75 Pa); all documentation requirements per C103.2 and C402.5.1.2 apply ALTERATIONS Page 7/8 Building Envelope Requirements List, pg 8 of 8 2018 WSEC Requirements for Commercial Buildings including Group R2, R3 & R4 over 3 stories & all R1 -- Administered by ©2022 NEEA, All rights reserved The following information is necessary to check a building permit application for compliance with the building envelope requirements in the Washington State Energy Code, Commercial Provisions. For questions about this report, contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com C503.1 C503.3.1 Roof alteration - insulation For a roof alteration where existing ceiling cavities are exposed, indicate cavities are insulated to full depth at minimum nominal value of R-3.0 per inch For a roof covering replacement where insulation is installed entirely above the roof deck, indicate insulation complies with requirements for new construction per Tables C402.1.3 or C402.1.4 C503.1 Wall and floor alteration - insulation For a wall or floor alteration (floor over outdoor or unconditioned space) where existing envelope cavities are exposed, indicate cavities are insulated to full depth at minimum nominal value of R-3.0 per inch C503.3.2 Addition of vertical fenestration Where the addition of new vertical fenestration results in a window-to-wall ratio (WWR) exceeding the prescriptive maximum allowed per C402.4.1, demonstrate method of compliance (prescriptive vertical fenestration alternate, component performance with target area adjustment for the alteration area and existing-to-remain areas combined, or total building performance per C407); demonstrate for each space conditioning category separately C503.3.3 Addition of skylights Where the addition of new skylights results in a skylight-to-roof ratio (SRR) exceeding the prescriptive maximum allowed per C402.4.1, demonstrate method of compliance (component performance compliance with target area adjustment for the alteration area and existing-to-remain areas combined, or total building performance per C407), demonstrate for each space conditioning category separately NA C103.2 C103.6.3 C503.2 C505.1 Change in space conditioning or occupancy compliance documentation Indicate envelope alteration thermal performance compliance path (prescriptive or component performance with 110% allowance); provide WSEC envelope compliance reports R2.00, R2.10 NA C103.2 C103.6.3 C503.2C 505.1 Change in space conditioning or occupancy compliance documentation If complying via total building performance with 110% allowance, provide a list of all proposed envelope component types, areas and U-values PROJECT CLOSE OUT DOCUMENTATION YES C103.6.3 Project close out documentation requirements Indicate in plans that project close out documentation is required including applicable calculations, WSEC envelope compliance reports, and fenestration NFRC rating certificates R2.00, R6.01 Powered by TCPDF (www.tcpdf.org) Page 8/8