The IECC as adopted by the Town at Section 15-9-10 is hereby amended as follows:
(a) Alternative Approaches to Energy Efficiency. A project may also propose an alternative to meeting the IECC by attaining:
Nationally recognized Green Building certification as approved by the Building Official that is equal to or better than the requirements of the IECC.
(b) Commercial Energy.
(1) Add new Section C303.2.3 “Recessed lights” to read:
C303.2.3 Recessed lights. Recessed can lights are allowed in ceiling-roof assemblies only if the required R-value of insulation can be met between the top of the fixture and the roof decking material.
(2) Add new Section C303.2.4 “Exterior walls” to read:
C303.2.4 Exterior walls. Recessed step lights are not permitted in exterior building walls except where the required R-value is met for the wall assembly.
(3) Add a last sentence to Section C403.1.1 to read:
Systems shall be designed by a certified Mechanical Engineer.
(4) Add a last sentence to Section C403.11.1 to read:
No condition ducts shall be constructed in an exterior wall, unless the required wall insulation is exterior of the duct.
(5) Amend Section C403.12.2 “Snow-and ice-melt system controls” by deleting entire section.
(6) Add a last sentence to Section C404.4. to read:
Hot water line piping shall not be placed in an exterior wall to the extent practical. When not practical as determined by the Building Official, hot water piping may be placed in an exterior wall provided the required insulation R-value of the wall is provided in between the piping and the exterior of the wall.
(c) Residential Energy.
(1) Amend Section R401.2 “Compliance” to read:
All new buildings and any building having an addition of 1000 square feet or greater shall comply with Section R406. All other buildings shall comply with one of the following:
The remainder of the section remains unchanged.
(2) Add new Section R402.2.14 “Exterior walls” to read:
R402.2.14 Exterior Walls. Recess step lights are not permitted in exterior building walls except where the required R-value is met for the wall assembly.
(3) Add a sentence to Section R402.4.5 to read:
Recessed can lights are allowed in ceiling-roof assemblies only if the required R-value of insulation can be met between the top of the fixture and the roof decking material.
(4) Amend Table R402.4.1.1 by adding to the Insulation Installation Criteria for the Walls Component:
Wood or Engineered Headers-R-10 wherever possible.
Steel Header – R-10 with insulation provided on both the exterior and/or the interior sides of the steel if possible, to maintain a continuous thermal barrier.
(5) Amend Section R403.5.3 to read:
R403.5.3 Hot water pipe insulation (Mandatory). Insulation for hot water piping with a thermal resistance, R-value, of not less than R-3 shall be applied to the following:
Items 1 through 7 remain unchanged.
8. Hot water line piping shall not be placed in an exterior wall to the extent practical. When not practical as determined by the Building Official, hot water piping may be placed in an exterior wall provided the required insulation R-value of the wall is provided in between the piping and the exterior of the wall.
9. An insulating blanket shall be provided that covers entire water tank fastened with appropriate tape.
(6) Add a last sentence to Section R403.7 to read:
Systems shall be designed by a certified Mechanical Engineer for single family residential structures greater than 2,000 sq. ft. of gross floor area including the basement area.
(7) Amend Section R406.1 to add to the following as the last sentence:
ERI refers to the ERI Home Energy Rating System (HERS) score.
(d) Additional Requirements for Residential and Commercial Buildings.
(1) Cement. All cement used within the Town shall be mixed with western coal fly ash, except such a mix is not required for exterior slabs.
(2) Low Volatile Organic Compounds (“VOC”). The general contractor and the property owner shall sign the Homeowner VOC Awareness Checklist provided by the Town prior to the issuance of a certificate of occupancy for a project.
(3) Energy Star Ratings. Energy Star rated appliances, exhaust fans and light fixtures shall be installed.
(4) Exterior vegetation irrigation systems shall be installed with a moisture sensor and timer to control irrigation.
(5) Pools and Spas (Hot Tubs).
a. Exterior swimming pools are prohibited in Telluride unless otherwise approved by the Planning and Zoning Commission pursuant to the use permitted on review development review process contained in the Telluride Land Use Code.
b. Pools, custom-built hot tubs, or factory-built portable spas shall also meet the Energy Mitigation Program requirements in Section 15-9-40.
c. Pools, custom-built hot tubs, or factory-built portable spas shall be equipped with a vapor-retardant pool cover on or at the water surface. Pools/spas capable of being heated above 90 degrees F must have a pool cover with a minimum insulation value of R-16.
(6) Garage door for heated garages shall have a value of R-18.
(7) Electrical resistance heating in living space is prohibited except for (a) the replacement of an existing system that is not subject to meeting the requirements of the Energy Code as provided in Subsection (c) of this Section; or (b) for heating small spaces less than one hundred (100) square feet.
(8) Mechanical Systems. Roofs shall be designed to not need electric underlayment mat heating unless approved by the Building Official and shall require temperature and moisture sensors.
(9) Snow- and ice-melting systems shall include automatic controls configured to shut off the system when the pavement temperature is above fifty (50) degrees F (ten (10) degrees C) and precipitation is not falling, and an automatic or manual control that is configured to shut off when the outdoor temperature is above forty (40) degrees F (four (4) degrees C). Electric resistance snow/ice melt systems are prohibited except for the heat tracing of gutters and associated downspouts. Snow/ice melt systems (except roof or gutter heat tracing) shall also meet the Energy Mitigation Program requirements in Section 15-9-40.
(10) Construction Waste. All sites shall have at least two (2) lockable bear-proof polycarts for (a) food items and (b) recyclables.
(11) Renewable Energy. One hundred percent (100%) of the building’s electricity use must be provided for with renewable energy, either produced on site or purchased through a Green Power Production Program. Creative alternative options will be considered by the Building Department. (Ord. 1502 §1, 2020)