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HomeMy WebLinkAbout1991 02-05 AGENDA MERIDIAN CITY COUNCIL FEBRUARY 5, 1991 ITEM: MINUTES OF THE PREVIOUS MEETING HELD JANUARY 15, 1991: (APPROVED) MINUTES OF THE SPECIAL MEETING HELD JANUARY 29, 1991: (APPROVED) 1: DONALD HARRIS, PRESENT A DEVELOPMENT PROPOSAL: (DISCUSSION) 2: RESOLUTION # 136: ADOPT STATEWIDE CONSTRUCTION STANDARDS FOR ENERGY CONSERVATION: (APPROVED) 3: PRE-TERMINATION HEARING: WATER/SEWER/TRASH DELINQUENCIES: (APPROVED) 4: APPROVE THE BILLS: (APPROVED) 5: DEPARTMENT REPORTS: MERIDIAN CITY COUNCIL FEBRUARY 5, 1991 The Regular Meeting of the Meridian City Council was called to order by Mayor Grant Kingsford at 7:30 P.M.: Members Present: Ron Tolsma, Bert Myers, Bob Giesler, Max Yerrington: Others Present: Kevin A. Jones, Walt Casey, Don Harris, Bill Gordon, Gary Smith, Wayne Crookston, Marty Walters, MINUTES OF THE PREVIOUS MEETING HELD JANUARY 15, 1991: The Motion was made by Myers and seconded by Tolsma to approve the Minutes of the January 15th meeting as written: Motion,Carried: All Yea: MINUTES OF THE SPECIAL MEETING HELD JANUARY 29, 1991: The Motion was made by Myers and seconded by Tolsma to approve the Minutes of the Special Meeting as written: Motion Carried: All Yea: ITEM #1: DONALD HARRIS, PRESENT A DEVELOPMENT PROPOSAL: Kingsford: Asked that Don come forward with his presentation. Harris: This piece of property just sits out there and I would like to develop it into a nice RV Campground. Giesler: How is that zoned now? Harris: AP2 - Agricultural. Kingsford: This is the property that Moe had talked about a transfer station on at one time. Pine and Locust Grove right at that corner. Gary what's the alignment for Pine, is it going to go straight through there or has there been any discussion on that? Eng. Smith: Pine would extend to the east until it got over to Ouderkirks property then it goes northeasterly up through Ouderkirks for a distance and then its destine ".to continue to the east. Giesler: Had some questions concerning the ten spaces for permanent mobile homes. Harris: There is a house also in there that is sitting there now, on that one acre. Crookston: Where is that houses access? Harris: It's the same access as I have. Discussion on drawing. (TAPE ON FILE) Giesler: I think this is something that the community could sure use. MERIDIAN CITY COUNCIL FEBRUARY 5, 1991 PAGE #2 Kingsford: I agree with that Don, I do have some reservations about the additional permanent mobile home sites. I do agree with Bob the area does need an overnight area. It terms of location I have a little reservation at least until Pine goes through, and this is a ways from the Interchange. Harris: Approximately how long would it take for the Council to get a feel of whether or not this would be applicable or not. Kingsford: I would say that after about a week or so you could call the Councilmen and get their feelings. ITEM#2: RESOLUTION #136: ADOPT STATEWIDE CONSTRUCTION STANDARDS FOR ENERGY CONSERVATION: Kingsford: A RESOLUTION OF THE CITY OF MERIDIAN ADOPTING THE STATEWIDE CONSTRUCTION STANDARDS FOR ENERGY CONSERVATION ESTABLISHED IN CHAPTER 23, TITLE 44, IDAHO CODE AND ELECTING THAT THE CITY SHALL ADMINISTER THE IDAHO RESIDENTIAL ENERGY STANDARDS AS ALLOWED IN CHAPTER 23, TITLE 44, IDAHO CODE. Crookston: Explained briefly the codes concerned with this Resolution. Giesler: What is the difference between this and the Occupancy Permit? Crookston: The difference between that is that our Building Inspector makes sure that the residence is okay to occupy before he gives them an occupancy Permit and this it's really just a self certifying thing. The Motion was made by Giesler and seconded by Myers to approve Resolution #136. Motion Carried: All Yea: ITEM #3: PRE-TERMINATION HEARING: WATER/SEWER/TRASH DELINQUENCIES: Kingsford: This is to inform you in writing, if you choose to, you have the right to a pre-determination hearing at 7:30P.M., 2/5/91 before the Mayor and City Council, to appear in person to be judged on facts and defend the claim amOe by the City that your water, sewer, and trash bill is delinquent. You may retain counsel. This Service will be discontinued 02/13/91 unless paid in full. The amount of delinquency for this month is $7,447.15. Is there anyone present who wishes to contest their water, sewer, trash bill? No response. They are hereby informed that they may appeal or have the decision of the City reviewed by the Fourth Judicial District Court, pursuant to Idaho Code. Even though they appeal the water will be shut off. The Motion was made by Myers and seconded by Yerrington to approve the turn-off list. Motion Carried: All Yea: ITEM #4: APPROVE THE BILLS: The Motion was made by Myers and seconded by Yerrington to approve the Bills. Motion Carried: All Yea: ITEM #5: DEPARTMENT REPORTS: MERIDIAN CITY COUNCIL FEBRUARY 5, 1991 PAGE #3 Eng. Smith: The Well #12 Bid Documents should be ready to start advertising by next week. On the sewer on Meridian Road, I met with Wayne Forrey last week and we discussed the project, and I haven't talked to him since so I'm not sure where he is on the contact. Clerk Niemann: He called today and stated he would bring the rough draft of the letter out in the morning. He did make contact with the Highway District and they don't have any problems. Smith: We need to take time to contact the people that live out on N. Meridian Road and advise them of the sewer situation, what we can do and how much time its going to take and what costs are involved with making that installation. Based on the information received at the Public Information Meeting that the Highway District held here at City Hall there was alot of interest from the people that live out there to have City sewer and water. I spoke with the Mayor and it was decided to retain Wayne Forrey and have him put together an information letter and request to those people to assemble here on a certain date to discuss the project. I have also done some work with JUB Engineers about the pipe up the south slQU8-n it looks like based on th~ preliminary work that has been done we are looking at a depth crossing there of about 16 feet, and that depth would allow us to continue that trunk line to the east up the south slcuJh ocd would get us to a quarter mile west of Cloverdale Road. Tolsma: Do we have a cost figure? Smith: $50,000, was just on the eight inch line south of Blue Heron Lane and if there is a sewer line installed north of Blue Heron Lane then of course thats going to be additional cost. Further Discussion. (TAPE ON FILE) (Kingsford: Thankyou Gary. I believe there is one other person who wishes to address Council. Harlan Rensvold, 1800 East Pine: I purchased this property four years ago, it was a shambles when I bought it, I spent four years fixing the home up, making it a good place for my family to live and I really can't see trailer houses being put around a home. I don't care what he does with the nine acres behind the house, but the acre on this side and the acre on my left side I don't want trailer houses or campers put around there. If you do decide to let him build this out there, I would like to see that he would have to either sell that one acre parcels for people to be able to build a home on. If Mr. Harris wants to pursue it, then he can buy my property then he won't have to build a house and he can live back in his old house but that's the only way I'm going to stand for it. Giesler: Do you have a problem with this concept right here? Rensvold: As long as it's moved down away from here. Showed Council on the drawing the area he is talking about. Kingsford: Thank you for coming. The Motion was made by Tolsma and seconded by Yerrington to go into executive session at 8:00 P.M.: Motion Carried: All Yea: MERIDIAN CITY COUNCIL FEBRUARY 5, 1991 PAGE #4 The Meeting called back to order at 9:05 P.M.: The Motion was made by Myers and seconded by Tolsma to instruct the Attorney to appeal the Meridian City vs. Perkins Case. Motion Carried: All Yea: The Motion was made by Myers and seconded by Yerrington to adjourn at 9:08 P.M.: Motion Carried: All Yea: APPROVED: ~~6~ ' . P. KINGSFO, Y; ATTEST: pc: Mayor & Council, P & Z Members, Atty, Fire, Police, Eng., Bldg., Hallett, ACHD, NMID, CDH, Settlers, Stuart, Ward, Valley News, Statesman FIle (1) Mail ( 1 ) 277 North Sixth, StatehouseMail.Boise.ID 83720 (208) r. '3950 FAX # (208) 334-2683 Area c...-::es: 1221 lronwoocl Drive, Suite 101. Coeur <i'Alene. ID 83814 1208) 765-5579 FAX Ii (208) 667-7053 307 East Lewis. P.O. Box 4963. pocatello. ID 83205.4963 (208) 236-6089 FAX # (208) 236.6227 DEPARTMENT OF LABOR AND INDUSTRIAL SERVICES Gary H. Gould, Director December 28, 1990 The Honorable Grant Kingsford Mayor of Meridian 1844 Lawndale Drive Meridian, ID 83642 Dear Mayor Kingsford: Re: Idaho Residential Energy Standards Please find enclosed a copy of the law pertaining Residential Energy standards which goes into residential buildings for which construction is of footings/foundations) after January 1, 1991. to the new Idaho effect for all started (pouring In your survey response, you indicated that your jurisdiction has elected to accept builder certifications and also issue electrical energizing permits to builders who will be constructing new residential buildings (including residential additions) within your jurisdiction. To assist you with this new program, our Department is providing you with forms BF-66 (Idaho Air Quality Warning Notice) and BF-67 (Builder Certification and Energizing Permit) in a quantity which you have indicated would likely be sufficient to start-up your program. In addition to the law and forms referenced above, I am enclosing instructional sheets which may be photocopied and given to each builder with form BF-67. Upon review and acceptance of form BF-67 from the builder, your next procedure is to sign the certification/permit and give the builder the two carbon (pink and gold) copies attached on the back of form BF-67 for his energizing permit and record copy. At this time, you should also give the builder a copy of form BF-66 which is to be left with the new residential building occupants. If, at a later date, you need more forms -- form BF-66 may be photocopied and form BF-67 may be purchased, at cost, from our Department for 14 cents each plus postage. EQUAL OI'I'OHTUNITY EMI'LOYEH The Honorable Grant Kingsford Page 2 December 28, 1990 Proposed regulations which yet require publication for public hearing notification and legislative approval are also provided in this mailing to help explain the process that should be followed to provide uniformity with respect to this new program. If the proposed regulations should undergo further revision, our Department will furnish your jurisdiction with a copy of the final accepted regulations. If you have questions of a technical nature, you may call the Department of Water Resources, Energy Division, at 334-7283. If you have questions regarding the law or regulations, you may call our Department at 334-3896 for assistance. JR/ka Enclosures c: Wayne Larsen Bob Hoppie Ken Baker Pat Harper Deni Hoehne Bill Eastlake Tom Blankenship IDAPA 07.01.04 IDAHO RESIDENTIAL ENERGY STANDARDS 101. PURPOSE AND SCOPE 102. DEFINITIONS 103. GENERAL REQUIREMENTS 104. LOCAL ENFORCEMENT OPTIONS 105. ALTERNATIVE COMPLIANCE APPROACHES 101. PURPOSE AND SCOPE Whereas it is the rmding of the Legislature that energy conservation measures associated with the construction of residential buildings are among the most efficient methods of providing for the future energy needs of Idaho, and the Legislature adopted Chapter 23, Title 44, Idaho Code to establish and enforce such energy conservation measures for new residential buildings sited in Idaho, and Whereas Section 44-2303(1) Idaho Code authorizes the Director of the Idaho Department of Labor and Industrial Services to provide for the administration and enforcement of the provisions of Chapter 23, Title 44, Idaho Code, and Whereas Section 44-2303(5) Idaho Code authorizes the Director of the Idaho Department of Labor and Industrial Services to promulgate rules necessary to implement the provisions of Chapter 23, Title 44, Idaho Code, The Director of the Idaho Department of Labor and Industrial Services hereby promulgates these Regulations in order to provide for the uniform, statewide implementation of the energy conservation standards as prescribed in Section 44-2302 Idaho Code. These standards shall be known as the Idaho Residential Energy Standards, or IRES, and may be cited as such. The Idaho Residential Energy Standards apply to all residential buildings which are three stories or less in height and which are started under construction after January 1, 1991, except for log homes, as dermed in these Regulations, and except for manufactured (H.D.D.) homes, as dermed in Section 39-4105 Idaho Code. Homes which have a mix of log walls and other types of above.grade walls are not exempt, and in such cases, the log wall, as dermed in these regulations, shall be deemed equivalent to R-19 frame walls for compliance and calculation purposes. Additions to existing residential buildings may be constructed without making the existing building comply with IRES, provided that the additions conform to IRES as required for new construction. 102. DEFINITIONS a. "Below grade wall" means walls or the portion of walls which extend two feet or more below the ftnish grade. b. MBuilder" means the person or corporation who is the general contractor responsible for the construction of a residential building, and shall include the manufacturer of a prefabricated residential building. The builder is the owner of the building if there is no general contractor or manufacturer. c. "Building component" means a type of building element separating a residential building from unheated space including below-grade walls, below-grade slabs, slabs on grade, floors over unheated space, above-grade walls, glazing, doors, ceilings under vented space averaging greater than one (1) inch (attic), and ceilings where enclosed joist or rafter space is formed by the ceiling applied directly to the underside of roof joists or rafters (vaulted). d. "Conditioned Uoor area" means the horizontal projection of that portion of interior space which is contained within exterior walls and which is conditioned directly or indirectly by an energy-using system. e. "Conditioned space" means all spaces which are provided with heated and/or cooled air or which are maintained at temperatures over 50 degrees F during the heating season, including adjacent connected spaces separated by an uninsulated component (e.g., basements, utility rooms, garages, corridors). r. "Conservation measures" mean materials and techniques used in residential buildings to reduce energy consumption and which result in increased efficiency of energy use. g. "Contaminant" means the presence in the atmosphere of a building of asbestos, biological elements, combustion products, formaldehyde, radon gas and volatile organic compounds. h. "Crawl space foundation wall" means the opaque portion of a wall which encloses a crawl space and is partially or totally below grade. i. "Department" means the Idaho Department of Labor and Industrial Services. j. "Director" means the director of the Idaho Department of Labor and Industrial Services. k. "Dwelling unit" means any building or portion thereof which contains living facilities, including provisions for sleeping, eating, cooking and sanitation for not more than one (1) family. 1. "Electric service provider" means rural electric cooperatives, municipal electric systems, and public utilities as defmed in chapter 1, title 61, Idaho Code, which sell and deliver electricity to end use customers. m. "Energy" means coal, electricity, natural gas, liquified petroleum gas, oil, wood or any other material used to cool or heat a residential building. D. "F-value" means the amount of heat measured in British thermal units (B.T.D.) that will pass through one (1) linear foot of slab edge perimeter per hour per degree Fahrenheit of temperature difference [BTU /(ft * hr * QF)J. o. "Glazing" means all areas, including the frames, in the shell of a conditioned space that let in natural light including windows, clerestories, skylights, sliding or swinging glass doors and glass brick walls. p. "Glazing area" means the total area of the glazing measured using the rough opening, and including the glass, sash, and frame. q. "Heat" means the form of energy that is transferred by virtue of a temperature difference. r. "Log home" means a residential building which has all walls between conditioned and unconditioned space constructed of solid wood members at least eight (8) inches in diameter for round sections or six (6) inches on a side for square and sections squared off on three sides. -2- s. "Log wall" means a wall between conditioned and unconditioned space which is constructed of solid wood members at least eight (8) inches in diameter for round sections or six (6) inches on a side for square and sections squared off on three sides. t. "Main entry door" means that door which leads from conditioned space to a main path to a public way. except a door designed for automobile access to a conditioned garage is not a main entry door. The term door refers to the openable door assembly and does not include sidelight glazing panels. u. "Nominal R-value" means thermal resistance of insulation, excluding structural components, as specified by the manufacturer according to recognized trade and engineering standards or other approved source. v. "Overall thermal transmittance"(UAo) means the average heat transmission of the gross area of the exterior residential building envelope, expressed in BTU/(hr. oF). The overall V-value applies to the combined effect of the time rate of heat flows through the various parallel paths, such as windows, doors and opaque construction areas, comprising the gross area of one or more exterior residential building components, such as walls, floors or roof/ceilings. w. "Permit" means a document which serves as an authorization to electrify, when provided to the appropriate electric utility by the builder or builder's agent. The permit is granted on the Department's form BF-67, which is a combined permit and builder certification form or on such alternate forms permitted by Section 104.c of these Regulations. x. "Residential building" means any building permanently sited in Idaho which consists of one (1) or more dwelling units and is of three (3) stories or less. The term "Residential building" does not include log homes, as defmed in these Regulations, or manufactured (H.U.D.) homes, as defmed in Section 39-4105, Idaho Code. y. "R-value" or "thermal resistance" means the ability of a material to resist the flow of heat. Mathematically, it is the reciprocal of the V-value. z. "U-value, thermal transmittance" means the amount of heat measured in British thermal units (B.T.V.) that will pass through one (1) square foot of building section per hour per degree Fahrenheit of temperature difference [BTU/(fe · hr · OF)]. 103. GENERAL REQUIREMENTS s. Certification. Any builder who begins construction on a residential building for siting in Idaho after January 1, 1991, shall certify in writing to the Director, or to the appropriate city or county official in a jurisdiction which has elected to accept certifications and issue permits to electrify, that the components which enclose conditioned space will be constructed in compliance with IRES. Beginning construction date is when work is started on the foundation. This certification requirement applies equally to on-site builders as well as manufacturers, wherever situated, which prefabricate homes for permanent siting within Idaho, provided that prefabricators shall certify to the Director even if the home will be sited in a local jurisdiction which has elected to accept certifications and issue permits. Certification shall be made as provided in these Regulations. -3. b. Permits. No electric cooperative, municipai electric system or public utility shall provide electric service to a residential building which is constructed after January 1, 1991, unless and until it receives a permit for that building in the form prescribed by these Regulations or on such alternate form permitted by Section l04.c. No electric service provider is required to accept a permit which is not clear as to the grant of permit or the identification of property or builder to which it applies. In multi-family residential buildings, individual permitting is preferred for each dwelling unit, but a single permit may be used for multiple units within the same building portion served by a common electrical service lateral from the electric service provider. The certification shall identify which units are covered by the permit in the space provided on form BF-67 or on such alternate forms permitted by Section l04.c of these Regulations. The provision of electric service referred to above means the last act which the electric service provider performs in supplying permanent electric service to the residential building. For example, if an electric service provider's last act is to make a line extension, and an electrician can, without further action by the utility, establish permanent connection of the residential building to the line extension, then the electric service provider must have the permit before making the line extension. Permits shall be issued by the Director or by incorporated cities and counties which have elected to accept certifications and issue permits as provided in these Regulations. Prior to issuance of the permit, the certification shall be examined to make sure that it is correctly completed and properly signed. If it is incomplete, or unsigned, or on its face shows noncompliance with IRES, no permit shall be issued, and the certification shall be returned to the builder with a brief explanation of why it does not comply. The Director shall charge a fee of twenty-five dollars ($25.00) for each permit issued by the Director to builders who have submitted certifications in order to cover the costs of processing the certification and permit. In accordance with Section 44-2303, Idaho Code, incorporated cities or counties which elect to accept builder certifications and issue permits are authorized to establish and collect permit fees in the amounts they fmd appropriate and necessary. c. Indoor Air Quality Statement. In accordance with Section 44-2305, Idaho Code, the builder of a residential building shall provide the building owner or occupant with a written notice of the potential risks to human health by indoor air contaminants, using the Director's form BF-66. Immediately following construction completion, this notice shall be delivered to either the owner or Hrst occupant or shall be left in the residential building in a location where it is likely to be noticed and read by the fIrst occupant. d. Forms Certifications shall be made and permits shall be granted on the combined form BF-67. Indoor Air Quality Statement shall be form BF-66. The content and appearance of these forms shall be defmed by the Director. Form BF~67 shall be provided directly to requesting builders and may be distributed through cooperating incorporated cities, counties, and electric service providers. Form BF-66 shall be given to builders when the builder copy and utility copy of form BF-67 are returned to the builder with the executed permit. -4- The Department shall make forms available to builders in those parts of the State where the incorporated city or county does not elect to receive certifications and issue permits as provided in these Regulations. The Department shall also supply initial forms to electric service providers and electing incorporated cities and counties, but, after this initial supply, these electing jurisdictions shall purchase additional quantities of form BF- 67 from the Department at a cost which shall not exceed the Department's printing., handling and shipping costs. Form BF-66 may be photocopied by electric service providers and local jurisdictions for distribution. Form BF-67 shall consist of an original and 3 carbon copies. After receipt, review and approval of the certification, the appropriate official shall then complete and sign the permit to electrify in the lower right hand corner of form BF-67. The official shall also print or type the following information in the space provided in the upper right hand corner of form BF-67: Name of the jurisdiction, if applicable Date certification was received from the builder Name of the person accepting the certification The Department or jurisdiction may use the blanks provided for "Certification No." and "Permit No." for their own identification and tracking systems. After the above information is completed, the form shall be separated and distributed as follows: The white original shall be retained by the Department or incorporated city or county which accepted the certification and issued the permit. The yellow fust copy shall be mailed or delivered to the Idaho Public Utilities Commission in order to assist the Commission in evaluating the implementation of the provisions of Chapter 23, Title 44, Idaho Code and the effects of its implementation on the conservation of energy as required by 44-2306, Idaho Code. The Department may accumulate and deliver these copies to the Commission monthly. Electing jurisdictions may accumulate these copies for up to a three (3) month period and mail or deliver them to the Commission at the end of that period. The pink second copy shall be returned to the builder who shall deliver it to the electric service provider which serves the area in which the residential building described in the certification is located. The electric service provider shall retain this copy for its records. The gold copy shall also be returned to the builder who may keep it for a record of compliance. 104. LOCAL ENFORCEMENT OPTIONS 8. Incorporated cities and counties may elect to establish; by ordinance or building code, energy-efficient construction standards com parable to or more stringent than the standards established by Chapter 23, Title 44 Idaho Code, provided that, at a minimum, such standards shall be enforced through builder certifications and the issuance of permits as required by Section 44-2303, Idaho Code, and these Regulations. Such jurisdictions may elect to accept certifications and issue permits as provided in Subsection 104.b, below. If a jurisdiction does not elect to accept certifications and issue permits, the Director shall do so pursuant to Section 44-2303(2), Idaho Code. b. Incorporated cities and counties may elect to accept builder certifications and issue permits. This election shall be made by sending written notice of such election to the Director. Electing jurisdictions may also opt to discontinue accepting certifications and issuing permits, and notice shall be sent to the Director at least four weeks prior to the effective date of such election to discontinue. -5- : ." Co Cities and counties which accept builder certifications and issue permits shall use the forms and procedures specified in these regulations unless said city or county notifies the Director of intention to use an alternate method as specified in this subsection. Incorporated cities and counties which adopt a standard comparable to or higher than IRES and elect to accept certifications and issue permits for electrification, and meet the following conditions, shall be exempt from the portion of these Regulations relating to using the Director's form BF-67, and shall, instead use an alternate certification/permit form. Those conditions are: The builder is required to certify in writing that the residential building meets the requirements of Title 44 Idaho Code Chapter 23, on the alternate certification form. The jurisdiction provides the information contained on form BFw66 to the home occupant or owner, or to the builder with instructions to provide it to the home occupant or owner as specified in these regulations. The jurisdiction issues permits to electrify on an alternate form which may be combined with the certification form. The jurisdiction sends copies of the alternate certification and permit forms, after certification and permit have been made, to the Public Utilities Commission on at least a quarterly basis. The jurisdiction provides written notification to the Director of its intention to accept certifications and issue permits on its own forms. In addition, the jurisdiction shall inform the Director in writing if, at any time, it repeals its energy standard, ceases to enforce its standard or fails to perform any of the above stated conditions, at which time the requirements of these Regulations relating to the Director's form BF- 67 shall be in full force and effect in the jurisdiction. 105. COMPLIANCE APPROACHES The builder shall certify compliance through either Prescriptive, Alternate Prescriptive, or Overall Thermal Transmittance. The builder shall complete the Component Values section of form BF-67 for all compliance methods and shall check the method used in the Compliance Paths section. If the builder uses either the Alternate Prescriptive or Overall Thermal Transmittance, the builder shall also provide the additional information in the space provided on form BF-67. a. Glazing U-values. Glazing U-values used for demonstrating or calculating compliance with IRES shall either be: i. the tested U-value of that glazing manufacture and model by an independent test lab performing one of the following tests: AAMA 1503.1-1988 AAMA 1503.1-1980 ASTM C236 or C976 but only if a 15 mile per hour wind has been applied perpendicular to tbe exterior of the glazing during the actual test; or ii. the default U-value for glazing baving the same frame type, glazing separation, gas fill, and coating as listed in these regulations or in the reference sources listed in these regulations. If no default value is listed for the specific glazing type used, the U value shall be calculated using Window 3.1 software developed by Lawrence Berkeley National Lab, and the calculation shall include the glazing frame. -6- b. Door U-values. Door V-values shall be for a door of the same construction description from any of the reference sources cited in these regulations or from the default V-values listed in these regulations. c. R-values. R-values of materials used for demonstrating or calculating compliance with IRES shall be taken from reference sources listed in Section 105.g of these Regulations or shall result from commonly accepted test procedures in accordance with ASHRAE principles. d. Prescriptive Compliance. The builder shall list the nominal R-value of the insulation to be placed in each building component in the spaces provided on Form BF-67. If different nominal insulation values are to be used in different parts of a building component, the lowest shall be listed. For example, if the wall between the dwelling unit and an unheated garage is insulated with material known to have a nominal R-value of 11, R-ll is the value to be listed even though the remaining exterior walls of the dwelling unit have a value of R-19. In the case of a wall configuration where more than one type of insulation is used, the V-value from the default table in Section 105.f.iii, may be listed if it is the same as or less than .065. The R-values of each layer of insulation shall also be listed. For example, if R-13 batts are used in the stud bays and R-3.6 polyisocyanurate foam sheathing covers the entire wall, the V-value of the wall is .063 according to the default table in Section 105.f.iii. of these Regulations. In this case, list "R-13 + R-3.6" in the line below "Wall-Above Grade" and write "U.063" in the "R " space on form BF-67. Note, in this example, the V-value could not be claimed if wood panel shear bracing displaced exterior insulated sheathing at any place on the wall. For all glazing and doors, except main entry door, the builder shall list the V-value. If there are different types of glazing or doors, the builder shall list the U-value of the least efficient type of glazing and door used. The builder shall also divide the total glazing area, including skylights, glass doors, glass block and other glazed exterior building surfaces, by the total conditioned floor area and list this as the glazing percentage on the space provided. If the glazing percentage exceeds 17%, the builder shall perform either an Alternate Prescription tradeoff to increase the allowable glazing percentage as provided in Subsection 105.e or Overall Thermal Transmittance analysis as provided in Subsection 105.f. If any nominal R-value is less than the minimum IRES nominal R-value for that component (except walls with equivalent U-value as described above), or if any V-value exceeds the maximum IRES V-value for that component, then the builder shall perform an Overall Thermal Transmittance analysis as required in Subsection 105.f of this section. e. Alternate Prescriptive Compliance. When the glazing percentage exceeds 17%, the builder has the option of using glazing with a lower V-value to allow greater glass area. This tradeoff shall be made using the V-value Trade-off Graph in these Regulations. In the Compliance Paths section of Form BF-67 the builder shall state the maximum glazing percentage allowed by the Graph for the glazing V-value the builder lists in the Component Values section. The actual glazing percentage listed in the Component Values section shall not exceed that from the V-value Trade-off Graph. f. Overall Thermal Transmittance Compliance. The builder shall calculate the overall thermal transmittance (UAo) of the residential building if built according to IRES, and this shall be called the IRES Reference VAo. The builder shall also calculate the VAo of the residential building as it will be constructed, and this shall be called the Project UAo, and these values shall be placed in the appropriate spaces on Form BF- 67. If the Project VAo is less than or equal to the IRES Reference VAo, the residential building complies with IRES. Chapter 23, Title 44, Idaho Code does not allow tradeoffs based on estimated energy use which result in overall thermal transmittance greater than the IRES Reference VAo. -7. i. Calculation Methodology. VAo shall be calculated in accordance with ASHRAE procedure. The formula for the overall thermal transmittance calculation is: VAo == (UbwAbw) + (FsPs) + (VgAg) + (VdAd) + (UwAw) + (UfAf) + (UcAc) where: VAo Area door == V-value above-grade wall == Area above-grade wall [net area = gross area - (Ag + Ad)] == V-value floor over unheated space = Area floor = V-value ceiling Area ceiling [net area :::: gross area - Ag] V-values for opaque building components shall include all building materials and air fIlms, including framing correction factors, and shall be calculated in accordance with ASHRAE procedure or may be taken from the reference sources listed in Subsection 105.g or the default values stated in these Regulations. The formula for the component V-value calculation for opaque surfaces is: Ubw Abw Fs Ps Ug Ag Ud = Overall building thermal conductance (Btu/(Hr * degree F) == V-value below-grade wall == Area below-grade wall = F-value slab-an-grade = Perimeter slab-an-grade = V -value glazing == Area glazing U-value door Ad Dw Aw Vf Ai Dc Ac Uc= (+ x %ins) Rms + (Ix %frm) Rfrm where: Dc = D value of the component Rills == R value of the insulated cavity section including all layers and air fIlms %ins == Percent the insulated cavity is of the wall Rfrm == R value of the frame section (studs, cripples & headers) including all layers and air f1lms %frm = Percent the frame is of the wall ii. Reference Values. The Reference VAo shall be calculated using tbe following V-values, F-values and Maximum Glazed Area (% of floor). Ceilings: Vented Attic Vaulted Ceiling .031 .034 WaIls: Above Grade Below Grade Doors which are 50% or more glazing are treated as glazing. .065 .056 Floors over unheated space .109 Glazing .56 (F-value) .42 (F-value) .65 Slab-an-grade perimeter Slab-below-grade perimeter Glazed Area (% conditioned floor area) 17% -8- iii. Default U~Values. Walls above grade 2 x studs at 16" a.c., double top plates, 3 stud corners, solid headers. Foam board must cover entire opaque wall surface to obtain U-Value stated. 2 x 4 Single Stud: R-ll Batt 2 x 4 Single Stud: R-13 Batt or Blown In R-value of Lapped Wood T1-11 R-Value of Lapped wood T1-11 Foam Board Foam Board 0 .088 .094 0 .082 .088 1 .080 .085 1 .075 .080 2 .074 .078 2 .069 .073 3 .069 .072 3 .065 .068 3.6 .067 .068 3.6 .062 .063 4 .064 .067 4 .060 .063 5 .060 .063 5 .057 .059 6 .056 .059 6 .053 .056 7 .053 .055 7 .051 .052 R-value of Lapped Wood T1-11 R-Value of Lapped wood T1-11 Foam Board Foam Board 0 .062 .065 0 .057 .060 1 .058 .060 1 .054 .056 2 .054 .056 2 .050 .052 3 .051 .053 3 .048 .049 3.6 .049 .051 3.6 .047 .048 4 .048 .050 4 .045 .047 5 .046 .048 5 .043 .044 6 .044 .045 6 .041 .042 7 .042 .043 7 .039 .040 2 x 6 Single Stud: R-19 Batt 2 x 6 Single Stud: R-21 Batt or Blown In Foam Boards and Urethane R per Inch Thickness Expanded Polystyrene, extruded 5 Expanded Polystyrene, molded beads 3.85 Polyisocyanurate, foil-faced on both sides 7.2 . Foamed in place urethane 6.25 -9- Component Nominal R U Value Description Ceilings, vented 19 .049 Ceiling below a vented attic, 30 .036 standard framing 38 .031 Ceilings, vaulted 19 .049 Ceiling on joists with 30 .034 above insulation 38 .027 8" Cone. Masonry above grade 5 .13 8" CMU with rigid foam 10 .078 2:<4 studs 16"o.c. 11 .076 Crawlspace Wall 19 .109 Vented crawlspace with 30 .107 closable vents Floor Over Crawlspace 19 .040 Joists or beams with deck 30 .029 Slab-on-Grade (F-value) 0 .73 Insulation extends X vertically 5 58 at slab edge 10 54 Fully Insulated Slab 10 .036 Insulation under whole slab Walls, below grade 0 .193 See note*" 10 ext. .056 11 int. .054 19 int. .037 * Assumes 8" Concrete Wall and, for simplification, that aU below-grade walls are 7' below grade. For heat loss calculations for wall areas less than 2 feet below grade, use above-grade wall V-values. For heat loss calculations for slab floors less than 2 feet below grade, use slab-an-grade F-values. -10- 15 mph Default U-Values for Windows and Glass Doors All values based on 15 mph wind speed and 'h inch minimum air space between glazing. except where specified as 14 inch. EAC is Exterior Aluminum Cladding. T.B. is Thermal Break. Glazing type Framing type Spacing Vinyl or Wood Aluminum Aluminum between Wood w/EAC w/T.B. wo/T.B. glazing 'A" 2GI 0.58 --- 0.70 0.75 Ih" 2GI 0.54 0.57 0.61 0.70 Ih" 2GI + Ar 0,49 --- 0.58 0.65 'h" 2GI + Low-E 0,41 0,41 0.53 0.58 Ih" 2GI + Ar + Low-E 0.35 0.35 0.39 ..- lh" 3GI 0.40 --. 0.53 --- Ih" 3GI + Low-E 0.32 --- 0.46 --- Glass Block Description U-Value 6" x 6" x 4" nominal 8" x 8" x 4" nominal 12" x 12" x 4" nominal 0.60 0.56 052 15 mph Default U-Values for Skylights Glazing type Framing type Vinyl or Wood Aluminum Aluminum. Wood w/EAC w/T.B. wa/T.B. 2Gl 0.65 0.69 0.73 0.82 2Gl + Ar 0.60 --- 0.70 0.77 2GI + Low-E 0.52 0.52 0.64 0.70 2Gl + Ar + Low-E _n 0,45 0.50 --- 3Gl 0.51 --. 0.64 --- 3GI + Low-E 0.42 u. 0.57 --- -11- .. . Doors Description Default U.Value Metal, 13/4", urethane filled, flush face, TB Metal, foam core, panel face, TB Metal, foam core, panel face, 2gIz. TB above with storm door Wood, 13/8", solid, flush face above with storm door Wood, 1 3/8", solid, panel face above with storm door Wood, 13/8", hollow, flush face above with storm Wood, 2 1/4", solid, flush face above with storm door .14 .12 .28 .12 39 .26 57 33 .47 .30 .27 .20 g. Reference Sources. The following sources are acceptable references for thermal resistance and transmittance calculation procedures and values. ASHRAE 1989 Fundamentals Handbook. Glazing U-values may be taken only from Chapter 27, Table 13, and "Glass Only" values shall not be used. Glazing values shall not be calculated except with the Window 3.1 software developed by Lawrence Berkeley Labs, and calculations shall include frames. 1991 Super Good Cents Specifications Appendix C. BPA, 1991. Super Good Cents Heat Loss Reference Manual. Vol. 2, BPA, Oct. 24,1988. ACCA Manual J. Calculate total heating HTM excluding infIltration and ducts. VAo equals this HTM divided by the temperature difference used for obtaining the HTM. -12- '..' . :c 0... c::r. cc C) u- u- o , UJ o c::( cc \- \JJ ::> -1 c:! :::;- ::> \ \ \ \ \ \ ~ \ \ \ \ \ \ \ \ \f \ \ \ \ \ \ \ \ 1 \ \ \ \ \ \ \ V; \ \ \ \ \ \ \ j \ \ \ \ \ \ \ f \ \ \ \ \ . \ \ \1 \ \ \ \ \ \ \ -( \ \ \ \ \ \ \ i\ \ \ \ \ \ \1 \ \ \ \ \ \ 1S: \ \ \ \ \ \ \ [l\ \ \ \ \ \ \ \ A \ \ \ \ \ \ Y \ \ \ \ \ \ JZ\ \ \ \ \ \ IZJ \ \ \ \ \ ~V\ \ \ \ \ \ \ r\ \ \ \ \ \ \ - co Q) ~ Ol . 0 to ~ Q) ...;0 U \..0 "<t Q) d 0- +-' Q) C) ..:t 0 0 +" 0 0 ~ \.0 >- t'1 ..0 0 >- - 0. 'p N '"3 t'1 E 0 - 0 - co ~ N 0 a:: a:: 0 ...r 0 N ...1 0 u.. - (j) (j) N 4:. ...1 0 ~ 1.0 ..- . 0 1.0 \.0 tC'l 1.0 0 tC'l o 0 \.C'l '\.0 -o::t 1.0 . ~ . ~ o . 0 . o 0 t"l 1.0 ~ o N 0 o 3r\1'if ^-n SSV'19 -13-