IECC Provisions for Multi-Family Buildings

Both Commercial and Residential Energy Code Requirements

Colorado Code Consulting, LLC For SWEEP, 2015 Residential VS Commercial

Definition of Residential per IECC is different than that found in the IRC and IBC:

How is the RESIDENTIAL BUILDING. For code used in this code, includes detached this building? one and two family dwellings 101.4.1 and multiple single family dwellings (townhouses) as well as R-2, R-3 and R-4 COMMERCIAL BUILDING. For buildings three stories or less this code, all buildings that are in height above grade plane. not included in the definition of "Residential buildings." 2 Construction Documentation R103

• Submitted details must be able to show full compliance with each code requirement including: • Insulation types, locations and R-Values • Fenestration types, locations and U-Factors/SHGC • Mechanical and water heating size, type and efficiency • Equipment and system controls • Duct sealing and insulation locations • Air sealing details • DEPICTION OF THE THERMAL ENVELOPE (R103.2.1)

R103.3: Code Official can hire someone else to do plan review as long as they were/are not affiliated with the design or construction of the building. New in the 2015 • 103.2.1 Building Thermal Envelope depiction: • The buildings thermal envelope shall be represented on the construction documents

• Example: • Blue – Exterior air barrier • Yellow Thermal Barrier • Red Interior air barrier IECC Commercial Compliance Options

2015 IECC - Prescriptive 2015 IECC - Performance 1 ASHRAE 90.1-2013 2 C402 - Envelope 3 C407 – Total Building C403 - Mechanical Performance C404 - SWH C402.5 – Air Leakage C405 - Lighting C403.2 – Provisions applicable to all AND mechanical systems Pick One C404 - SWH Efficiency Option in C406: Lighting Mandatory Sections C405.2 C405.3 C405.4 C405.6

Building energy cost to be ≤ 85% of standard reference design building IECC Additional Efficiency Package Options Section C406

• One additional efficiency feature must be selected to comply with the IECC • More efficient HVAC performance, OR High Efficiency HVAC • Reduced lighting power density system, OR Efficient • Enhanced lighting controls, OR • On-site supply of More Efficient Lighting renewable energy OR System

Dedicated Outdoor Air System • Dedicated outdoor air system, OR • More efficient SWH

Onsite Renewables Solar Thermal/More Efficient SWH IECC Chapter 5 Prescriptive Compliance Approach for Commercial IECC Chapter 5 Prescriptive Approach Compliance

ROOFS

4 5 Climate 1 2 3 Except And 6 7 8 Zone Marine Marine 4 Insulation entirely R- R- R- R- R- R- R- R- R-20ci R-25ci R-25ci R-25ci R-25ci R-25ci R-35ci R-35ci above 30ci 30ci 30ci 30ci 30ci 30ci 35ci 35ci deck Metal buildings R- R- R- R- R- R- R- R- a, b R-19+ R-19+ R-19+ R-19+ R-19+ R-19+ 19+ 19+ 19+ 19+ 25+ 25+ 30+ 30+ R-30+ R-30+ R-11 LS R-11 LS R-11 LS R-11 LS R-11 LS R-11 LS R-11 R-11 R-11 R-11 R-11 R-11 R-11 R-11 R-11 LS R-11 LS LS LS LS LS LS LS LS LS

Attic and R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-49 R-49 R-49 R-49 R-49 R-49 R-49 other Chapter 5 Prescriptive Approach WALLS, ABOVE GRADE

Climate 4 5 1 2 3 6 7 8 Zone Except Marine And Marine 4

R- R- R- R- R- R- R- R- R- R- R- Mass c c R-7.6ci R-7.6ci R-9.5ci R-9.5ci R-25ci 5.7ci 5.7ci 5.7ci 11.4ci 11.4ci 13.3ci 13.3ci 15.2ci 15.2ci 15.2ci 25ci

R- R- R-13+ R- R- R- R- R- R- R- R- R- R- R- Metal R-13+ 13+R- R-13+R- 13+ 6.5ci 13+R- 13+R- 13+R- 13+R- 13+R- 13+R- 13+R- 13+R- 13+R- 13+R 13+R- building 6.5ci 13 ci 13 ci 6.5ci 13 ci 13 ci 13 ci 13 ci 13 ci 13 ci 13 ci 13 ci 19.5 ci -13 ci 19.5 ci

Metal R- R- R-13= R-13= R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ R-13+ 13= 13+ Framed R-5 ci R-5 ci 7.5ci 7.5ci 7.5ci 17.5ci R-5 ci 7.5ci 7.5ci 7.5ci 7.5ci 7.5ci 7.;5ci 7.5cfi 15.6ci 7.5ci

Wood R- R- R- R- R- R- R- R- 13+R R- R- R- R- R- Framed R- R- 13+R- 13+R- 13+R- 13+R- 13+R- - 13+R- 13+R 13+R- 13+R- 13+R- R-13+R- 13+R- 13+R- & Other 13+R- 13+R- 7.5ci 7.5ci 7.5ci 7.5ci 7.5ci 15.6c 15.6ci -3.8ci 3.8ci 3.8ci 3.8ci 3.8ci 3.8ci 3.8ci or 3.8ci 3.8ci i or or R- or R- or R- or R- or R- or R- or R- or R- or R- or R- or R-20 or R-20 R-20 or R- or R- R- 20+R- 20 20 20 20 20+R- 20+R- 20+R- 20+R- 20+R- 20 20 20+R 10 ci 3.8 ci 3.8 ci 3.8 ci 3.8 ci 3.8 ci -10ci Chapter 5 Prescriptive Approach Compliance

WALLS, BELOW GRADE

4 Climate 5 1 2 3 Except 6 7 8 Zone And Marine 4 Marine

Below grade NR NR NR NR NR NR NR R-7.5ci R-7.5ci R-7.5ci R-7.5ci R-7.5ci R-10ci R-10ci R-10ci R-12.5ci wall(d) Below Grade Walls Table C402.1.3 or Table C402.1.4

What is a below grade wall? Basement or first-story walls ≥ 85% below grade

Insulation must extend down 10 ft from the outside finished grade level or to the level of the lowest floor, whichever is less

Heated slabs installed below grade (footnote d to Tables C402.1.3 and C402.2.14) Below grade walls must meet exterior insulation requirements for heated slabs

R-value is for continuous insulation Chapter 5 Prescriptive Approach Compliance

FLOORS

4 Climate 5 1 2 3 Except 6 7 8 Zone And Marine 4 Marine

R- R- R- R- R- R- R- R- Masse NR NR R-6.3ci R-8.3ci R-10ci R-10ci R-15ci R-16.7ci 10ci 10.4ci 10ci 12.5ci 12.5ci 12.5ci 15ci 16.7ci

Joist/ Framing NR NR R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30f R-30f R-30f R-30f R-30f Floors Section C402.2.4 Floor framing cavity insulation or structural slab insulation should be installed to maintain permanent contact with underside of subfloor decking or structural slabs

NEW Exceptions: Framing cavity insulation or structural slab insulation is permitted to be in contact with top side of sheathing or ci installed on the bottom side of floor where combined with insulation that meets or exceeds R-value in Table C402.1.3 for “Metal framed” or “Wood framed and other” values for “Walls, Above Grade” and extends from the bottom to the top of all perimeter floor framing or floor assembly members

• Insulation applied to underside of concrete floor slabs is permitted an airspace of < 1” where it turns up and is in contact with underside of floor under walls associated with the building thermal envelope Chapter 5 Prescriptive Approach Compliance

SLAB-ON GRADE FLOORS

4 5 Climate Zone 1 2 3 6 7 8 Except Marine And Marine 4

R-10 R-10 R-10 R-10 R-10 R-15 R-15 R-15 R-20 for for for for for for for for R-15 for for Unheated Slabs NR NR NR NR NR NR 24 in. below 24 in. 24 in. 24 in. 24 in. 24 in. 24 in. 24 in. 24. in. 24 in. below below below below below below below below below

R-15 R-15 R-15 R-15 R-15 R-20 R-20 R-20 R-20 Heated R-7.5 for R-10 for R-7.5 for R-7.5 for R-7.5 for R-10 for for for for for for for for for R-20 for for Slabs 12 in. 24 in 12 in. below 12 in. below 12 in. below 24 in. below 48 in. below 48 in. below below 24 in. 24 in. 36 in. 36 in. 48 in. 48 in. 24 in. 48 in. below below below below below below below below below Slab-on-Grade Floor Insulation IECC C402.2.5 Meet or exceed values in appropriate table for climate zone (includes R-value and depth or width of insulation) For Commercial Buildings: only applies to slabs less than 24” below grade Be installed around the perimeter to the distance specified • Inside foundation wall – extend downward from top of slab a minimum distance specified or to the top of the footing, whichever is less • Outside foundation wall – extend from top of the slab or downward to at least the bottom of the slab and then horizontally to a minimum distance specified

NO! Chapter 5 Prescriptive Approach Compliance

OPAQUE DOORS 4 5 Climate Zone 1 2 3 Except And 6 7 8 Marine Marine 4

R- R- R- R- R- R- R- R- Nonswinging R-4.75 R-4.75 R-4.75 R-4.75 R-4.75 R-4.75 R-4.75 R-4.75 4.75 4.75 4.75 4.75 4.75 4.75 4.75 4.75

What happened to swinging doors? Swinging Doors in IECC are moved

TABLE C402.1.4 OPAQUE THERMAL ENVELOPE ASSEMBLY MAXIMUM REQUIREMENTS, U-FACTOR METHOD a, b Insulation of Radiant Heating Systems Section C402.2.6

Radiant heating system panels and their associated components:

• Installed in interior or exterior assemblies to be insulated with > R-3.5 on all surfaces not facing the space being heated • Installed in the building thermal envelope should be separated from the exterior of the building or unconditioned or exempt spaces by not less than the R-value installed in the opaque assembly in which they are installed or assembly comply with Section C402.1.4 2012 has conflict with IMC 2015 Exception: heated slabs-on-grade insulated in accordance with Section C402.2.5 Fenestration Chapter 5 Prescriptive Approach

Not based on frame types Vertical Fenestration Requirement Section C402.4.1 – Prescriptive (Max area)

Percentage of Vertical Fenestration Area to Gross Wall Area

 Allowed up to 30% maximum of above grade wall  In Climate Zones 1-6, up to 40% maximum of above grade wall with daylighting controls 2015 Up to 40% vertical fenestration area allowed in Climate Zones 1-6, provided • No less than 50% of the conditioned floor area is within a daylight zone 40% • in buildings less than 2 stories above grade

• No less than 25% of the net floor area is within a daylight zone 40% • in building > 3 stories above grade

• Daylight responsive controls complying with C405.2.3.1 are installed in daylight zones 40% • VT of vertical fenestration is ≥ 1.1 times SHGC Skylight Minimum Fenestration Area Section C402.4.1 Prescriptive

Limited to ≤ 3% of Roof Area Up to 5% allowed if automatic daylighting controls installed in daylight zones under skylights Fenestration Chapter 5 Prescriptive Approach Fenestration SHGC Requirements

The Effect of Overhangs on Fenestration SHGC

 Overhangs allow a higher SHGC product to be installed

 Projection factor must be calculated

 When different windows or glass doors have different PFs

 Evaluate separately

Example: A=18” B=84” A/B= 18/84 = .21pf Mandatory Requirements – IECC Commercial Envelopes

 Air Leakage  Air barriers  Fenestration air leakage  Rooms Containing Fuel-burning Appliances  Air intakes, exhaust openings, stairways and shafts  Loading dock weatherseals  Vestibules  Recessed lighting Air Barriers and Construction Section C402.5.1.1

• Continuous air barrier required except in Climate Zone 2B • Air barrier placement allowed: • Inside of building envelope • Outside of building envelope • Located within assemblies composing envelope OR Any combination thereof Air Barriers and Construction Section C402.5.1.1 • Penetrations of air barrier and air leakage paths to be caulked, gasketed or otherwise sealed in a manner compatible with construction materials and location • Joints and seals • Sealed in same manner or taped or covered with moisture vapor-permeable wrapping material • Sealing of concealed fire sprinklers where required in a manner recommended by manufacturer • Caulking or other adhesive sealants should not be used to fill voids between fire sprinkler cover plates and walls, or ceilings • Recessed lighting to comply with C402.5.7 • Where similar objects are installed that penetrate the air barrier, make provisions to maintain the air barrier’s integrity Air Leakage Section C402.5

The thermal envelope must comply with the requirements of Sections C402.5.1 – C402.5.8 OR be tested in accordance with ASTM E 779 at pressure differential of 0.3 inch water gauge or an equivalent method approved by code official when tested air leakage rate < 0.40 cfm/ft2 Two ways to comply with air barrier requirements: Materials – C402.5.1.2.1 OR Assemblies – C402.5.1.2.2

Materials with air permeance ≤ 0.004 cfm/ft2 under pressure differential of 0.3 in. w.g. tested in accordance with ASTM E 2178 Material Thickness (minimum) These materials meet this requirement: Plywood 3/8 in. Oriented strand board 3/8 in. Extruded polystyrene insulation board ½ in. Foil-faced urethane insulation board ½ in. Closed cell spray foam minimum density of 1.5 pcf 1-1/2 in. Open cell spray foam density between 0.4 and 1.5 pcf 4.5 in. Exterior gypsum sheathing or interior gypsum board ½ in. Cement board ½ in. Built up roofing membrane Modified bituminous roof membrane Fully adhered single-ply roof membrane A Portland cement/sand parge, stucco, or gypsum plaster 5/8 in. Cast-in-place and precast concrete Sheet metal or aluminum Solid or hollow masonry constructed of clay or shale masonry units C402.4.1.2.2 Air barrier assemblies

Option 2 • Concrete masonry walls coated with either one application either • Assemblies of materials and of block filler or two applications components meeting specific air of a paint or sealer coating OR leakage requirements can comply. 2 items listed as “deemed to comply” provided joints are sealed • Masonry walls constructed of clay or shale masonry units with a nominal width of > 4” OR

• Portland cement/sand parge, stucco or plaster > ½” thick

30 Rooms Containing Fuel-burning Appliances Section C402.5.3

• Appliances and combustion air openings to be located outside the building thermal envelope or enclosed in a room isolated from inside the thermal envelope in Climate Zones 3-8 • Where open combustion air ducts provide combustion air to open combustion space conditioning fuel-burning appliances • Rooms to be sealed and insulated per envelope requirements • Doors into the rooms fully gasketed • Water lines and ducts insulated • Combustion air ducts that pass through conditioned space, insulated to > R-8 Exceptions: • Direct vent appliances with both intake and exhaust pipes installed continuous to the outside • Fireplaces and stoves complying with 901-905 IMC and Section 2111.13 IBC Commercial Mechanical

• Size equipment to ASHRAE 183: absolutely no oversizing allowed • Mandatory efficiency requirements • HVAC System controls • Automatic Dampers • Ventilation according to IMC • Duct and Plenum insulation and Sealing • Piping insulation • Economizers if using the prescriptive approach • Commissioning where required per C408 IECC Residential Compliance Options

1 2015 IECC –Prescriptive: 2 2015 IECC - Prescriptive 3 2015 IECC – Simulated Performance Approach R402.1.4 U-factor By the book approach Alternative R405 – Building Performance based OR on Building Energy Cost. R402.1.5 Total UA alternative 2015 Prescriptive R-value Table Compliance Specification Declare to the Code official that the pathway for compliance is the prescriptive path

Table R402.1.2 R402.1.4 U-factor Alternative

CEILING U- FACTOR FRAME WALL MASS WALL U- FLOOR U- BASEMENT WALL U- CRAWL SPACE CLIMATE ZONE FENESTRATION SKYLIGHT U- FACTOR FACTORb FACTOR FACTOR WALL U- FACTOR U-FACTOR U-FACTOR

1 0.50 0.75 0.035 0.084 0.197 0.064 0.360 0.477 2 0.40 0.65 0.030 0.084 0.165 0.064 0.360 0.477 3 0.35 0.55 0.030 0.060 0.098 0.047 0.091c 0.136

4 except Marine 0.35 0.55 0.026 0.060 0.098 0.047 0.059 0.065

5 and 0.32 0.55 0.026 0.060 0.082 0.033 0.050 0.055 Marine 4 6 0.32 0.55 0.026 0.045 0.060 0.033 0.050 0.055 7 and 8 0.32 0.55 0.026 0.045 0.057 0.028 0.050 0.055

. An assembly with a U-factor equal to or less than that specified in Table R402.1.4 shall be permitted as an alternative to the R-value in Table R402.1.2 . Example: Climate zone 5 framed wall • U- .060 = R-16.67 • R-value table requires cavity insulation at R20 or 13+5 • 1/20 = U.05 Plus sheathing, air film, etc. Residential Building Thermal Envelope Requirements R402.4.1.2 Testing (Mandatory)

• The building or dwelling unit shall be tested and verified as having an air leakage rate not exceeding: • 5 ACH@50 in Climate Zones 1 and 2 • 3 ACH@50 in Climate Zones 3 through 8

• Testing shall be conducted by an approved third party

• Reporting 402.4 Air Leakage and Air Barriers (Mandatory)

• The building thermal envelope 2012 IECC Table shall be constructed to limit air leakage in accordance with the requirements of Sections R402.4.1 through R402.4.4.

• The components of the building thermal envelope as listed in Table 2015 IECC Table R402.4.1.1 shall be installed in accordance with the manufacturer’s instructions and the criteria listed in Table R402.4.1.1 Table 402.4.1.1 Component – General Air barrier/Thermal barrier

Air Barrier Criteria Insulation Installation Criteria • A continuous air barrier shall be • Air-permeable insulation shall installed in the building envelope not be used as a sealing material • Exterior thermal envelope contains a continuous air barrier. • Breaks or joints in the air barrier shall be sealed Insulation Air Barrier

Insulation traps pockets of air Stopping the movement of air from scrubbing away the stagnate air pocket Stagnate Air Pockets create the R-value Now it works Air-permeable insulation shall not be used as a sealing material Table 402.4.1.1 Component – Ceiling / Attic

Air Barrier Criteria Insulation Installation Criteria • The air barrier in any dropped • The insulation in any dropped ceiling/soffit shall be aligned ceiling/soffit shall be aligned with the insulation and any gaps with the air barrier in the air barrier sealed • Access openings, drop down stair or knee wall doors to unconditioned attic spaces shall be sealed Ceiling Access Openings R402.2.1 Ceilings with attic spaces

• R-38 shall be deemed to satisfy the requirement for R-49 wherever the full height of uncompressed R-38 insulation extends over the wall top plate at the R-49 eaves. R-38

Raised Heel Truss

Baffling to prevent insulation from blocking ventilation R402.2.3 Eave baffle • For air permeable insulations in vented attics, a baffle shall be installed adjacent to soffit and eave vents • Baffles shall maintain an opening equal or greater than the size of the vent • The baffle shall extend over the top of the attic insulation Table 402.4.1.1 Component – Walls

Air Barrier Criteria Insulation Installation Criteria • The junction of the foundation • Cavities within corners and headers and sill plate shall be sealed of frame walls shall be insulated by completely filling the cavity with a • The junction of the top plate and material having a thermal top of exterior walls shall be resistance of R3 per inch minimum sealed • Knee walls shall be sealed • Exterior thermal envelope insulation for framed walls shall be installed in substantial contact and continuous alignment with the air barrier Junction of foundation and sill plate is sealed Attic Knee Walls Table 402.4.1.1 Component – Rim Joists

Air Barrier Criteria Insulation Installation Criteria • Rim joists shall include the air • Rim joists shall be insulated barrier Rim Joist Box Sill Table 402.4.1.1 Component – Floors (including above garage &cantilever floors)

Air Barrier Criteria Insulation Installation Criteria • The air barrier shall be installed • Floor framing cavity insulation shall be installed to maintain permanent contact with underside of at any exposed edge of subfloor decking insulation • 2015 IECC introduction • or floor framing cavity insulation shall be permitted to be in contact with the topside of sheathing or continuous insulation installed on the bottom side of floor framing and extends from the bottom to the top of all perimeter floor framing members. Floor Insulation The air barrier shall be installed at any exposed edge of insulation

Garage/Home Interface:

No gaps at ends Details: Cantilever Floor Cantilevers

Effective detailing Table 402.4.1.1 Component – Crawl Space Walls

Air Barrier Criteria Insulation Installation Criteria • Exposed earth in unvented crawl • Where provided in lieu of floor spaces shall be covered with a insulation, insulation shall be Class I vapor retarder with permanently attached to the overlapping joints taped crawlspace walls 2015 IECC table 402.4.1.1 Crawl – Insulation is permanently attached to walls, earth covered and sealed with Class 1 vapor barrier

Sealed

Thermal Boundary

Mechanically fastened Class I vapor barrier

Supply Air Table 402.4.1.1 Component – Shafts, Penetrations

Air Barrier Criteria Insulation Installation Criteria • Duct shafts, utility penetrations, • In the 2015 IECC the Fireplace fireplace chases and flue shafts section was consolidated into opening to exterior or this section unconditioned space shall be sealed Table 402.4.1.1 Component – Garage Separation

Air Barrier Criteria Insulation Installation Criteria • Air sealing shall be provided between the garage and conditioned spaces Table 402.4.1.1 Component – Shower/tub on exterior wall

Air Barrier Criteria Insulation Installation Criteria • The air barrier installed at • Exterior walls adjacent to exterior walls adjacent to showers and tubs shall be showers and tubs shall separate insulated them from the showers and tubs Tubs and Showers Table 402.4.1.1 Component – Electrical/phone box on exterior walls

Air Barrier Criteria Insulation Installation Criteria • The air barrier shall be installed behind electrical or communication boxes or air sealed boxes shall be installed Electrical/phone box on exterior walls Table 402.4.1.1 Component – HVAC Register boots

Air Barrier Criteria Insulation Installation Criteria • HVAC register boots that penetrate building thermal envelope shall be sealed to the subfloor or drywall

Who’s job is this? Table 402.4.1.1 Component – Fireplace

Air Barrier Criteria Insulation Installation Criteria • This section was moved in the 2015 IECC • An air barrier shall be installed on fireplace walls • Fireplaces shall have gasketed doors Fireplace Sequencing is the Issue air barrier 1st then over framing Table 402.4.1.1 Component – Concealed Sprinklers

Air Barrier Criteria Insulation Installation Criteria • When required to be sealed, concealed fire sprinklers shall only be sealed in a manner that is recommended by the manufacturer. Caulking or other adhesive sealants shall not be used to fill voids between fire sprinkler cover plates and walls or ceilings Building/Fire Code and Energy Code Not on the same page

• 2009 IECC • Common wall: Air barrier is installed in common wall between dwelling units

• 2012 and 2015 IECC • Not mentioned in the table The Problem Common wall between Dwelling Units taken out of the code table Air seal here • Energy Code and Building/Fire Code are not in alignment • Potential swapping of Framed wall like materials • Fire rated foam for rock wool fire stop • Blown fiberglass for fiberglass batt Drywall

Air seal here Gap What constitutes the assembly? Fill the gap • Treat Common / Party Walls Like Exterior Walls and require all air sealing and air barriers adjacent to the assembly Build Tight Ventilate Right M1507.3 Whole-house mechanical ventilation system • M1507.3.1 System design: The whole-house ventilation system shall consist of: Supply Side, Exhaust Side, Balanced systems, or combination there of

• M1507.3.2 System controls: The whole-house mechanical ventilation system shall be provided with controls that enable manual override

• M1507.3.3 Mechanical ventilation rate: The whole house mechanical ventilation system shall provide outdoor air at a continuous rate of not less than that determined in accordance with Table M1507.3.3(1).

• Exception: • Permitted to operate intermittently where the system has controls that enable operation for not less than 25-percent of each 4-hour segment and the ventilation rate prescribed is multiplied by the factor determined in accordance with Table M1507.3.3(2). TABLE M1507.3.3(1) CONTINUOUS WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM AIRFLOW RATE REQUIREMENTS

. Simulated Performance and ASHRAE 62.2 Formula: . Ventilation can’t be greater than what is calculated by formula

Fan flow (CFM) = 0.01 CFM x your floor area + 7.5 x (your number of bedrooms + 1)

. For a 1,510 square foot 4-bedroom home, (0.01 X 1510) + (7.5 times 5) Formula Result: 52.5 CFM Chart Result: 75 CFM R403.7 Equipment Sizing

• Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on building loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation technologies.

© 2014 Colorado Code Consulting, LLC 77 What’s Covered Under Electrical Power and Lighting Systems Requirements? IECC

Exception: • Dwelling units within commercial building are not required to comply IF they comply with the residential Section R404.1 A minimum of 75 percent of the lamps in permanently installed lighting fixtures are high-efficacy lamps or 75% of permanently installed lighting fixtures contain only high efficacy lamps Exception:  Low-voltage lighting Electrical Energy Consumption Mandatory Requirement Section C405.6 Separate metering required for each R-2 dwelling unit Commercial or Residential?

That is the question!

• Who has the answers? • NBI • DOE • Jurisdictions • You? QUESTIONS? Thank You!!! • Presented by: Shaunna Mozingo Colorado Code Consulting LLC 4610 S Ulster St, Ste 150 Denver, CO 80237 303-598-3465 direct line [email protected]