Scope & definitions for insulating materials

Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:

• CRSC § 1551-1561 High relevance — show source text

  HISTORY:

  1. Repealer of Article 3 (Sections 1551-1561) filed 8-11-78; effective thirtieth day thereafter (Register 78, No. 32). For prior history, see Registers 76, No. 16; 78, Nos. 2 and 26.
  2. New Article 3 (Sections 1551-1565) filed 1-16-79; effective thirtieth day thereafter (Register 79, No. 3).
  3. Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

  DEFINITIONS

  Sec. 12-13-1552. For purposes of this article, the following definitions shall apply:

  (a) “Approved laboratory” means any testing facility including a facility owned or operated by a manufacturer which has been approved pursuant to Section 1554 of this article.

  (b) “ANSI” means the American National Standards Institute.

  (c) “ASTM” means ASTM International.

  (d) “Building materials” means materials used in walls, ceilings, roofs and floors of buildings.

  (e) “Exposed application” means any interior application of the product in which it is not used in a construction assembly imposing a material which meets the requirements of Chapter 8 of the California Building Code in substantial contact with the facing or membrane surface.

  (f) “Installed design density” means the proven density for loose fill insulation other than cellulose which has been determined by the manufacturer to constitute the density whereby settlement of no more than 2 percent shall occur over the first three years, or no more than 4 percent over the first 15 years of installation.

  (g) “Insulating material” or “insulation” means any material listed in Section 1551 (b) of this article and placed within or contiguous to a wall, ceiling, roof or floor of a room or building, or contiguous to the surface of any appliance or its intake or outtake mechanism, for the purpose of reducing heat transfer or reducing adverse temperature fluctuations of the building room or appliance.

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  STANDARDS FOR INSULATING MATERIAL

  (h) “Manufacturer” means any person who either:

  1. Produces insulating material in the final composition either for use in the form sold or to be further dimensionally modified; or
  2. In the case of polyurethane, polyisocyanurate and urea formaldehyde foam formed at the installation site, produces the primary components of the material.

  “Manufacturer” shall not include any building contractor or any other person whose sole activity is to install insulation at the installation site.

  (i) “Quality assurance program.” (Reserved)

  (j) “Recommended wall density” means the density used for pressure fill retrofit wall applications to prevent settling.

  (k) “Representative sample” means a sample of insulating material with the same characteristics (other than thickness) and using the same facing imposed on the insulating material manufactured for final use.

  (l) “Representative thickness” means a thickness of insulating material at which the change in thermal performance per inch will vary no more than plus or minus 2 percent with increases in thickness.

  (m) “TAPPI” means Technical Association of Pulp and Paper Industry.

• California Referenced Standards Code Medium relevance — show source text

  (f) Mineral aggregate in board form.

  1. Composition. The basic material shall be mineral in nature, crushed, dried and graded to the proper particle size and expanded by the application of heat to form a spherical, cellular type of aggregate. It shall be composed of spherical cellular beads of expanded aggregate and fibers formed into rigid, flat, rectangular units and shall have an integral water proofing

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  treatment. It shall be clean, dry and free of extraneous material. Fibers shall be evenly distributed and insulation and facings shall be sufficiently coherent to be unaffected by handling and installation. 2. Thermal performance. Determination of the thermal performance shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option. 3. Resistance to combustion. Surface-burning characteristics of materials with facings and membranes intended for exposed applications shall be determined according to ANSI/ASTM E84-79 and shall not exceed the following values:

  Flame spread. . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Smoke developed. . . . . . . . . . . . . . . . . . . . . . 450 Facings and membranes of materials intended for exposed applications shall be exposed to the flame during the ANSI/ASTM E84-79 test.

  Insulation boards exclusive of facings and membranes shall not exceed the following values:

  Flame spread. . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Smoke developed. . . . . . . . . . . . . . . . . . . . . . . 50 (g) Mineral fiber in blanket form.

  1. Composition. The basic material shall be fibers made from mineral substances such as rock, slag or glass processes from a molten state into fibrous form.

  2. Thermal performance. Determination of the thermal performance shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option.

  3. Size. The thickness shall be determined according to ANSI/ASTM C167-64.

  4. Resistance to combustion. Surface-burning characteristics of materials with facings and membranes intended for exposed applications shall be determined according to ANSI/ASTM E84-79 and shall not exceed the following values:

  Flame spread. . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Smoke developed. . . . . . . . . . . . . . . . . . . . . . 450 Facings and membranes of materials intended for exposed applications shall be exposed to the flame during the ANSI/ASTM E84-79 test.

  Insulation blankets not intended for exposed applications shall comply with the United States General Services Administration insulation standard HH-I-521F dated September 4, 1980, for flammability and smoldering combustion testing. 5. Corrosiveness. Corrosiveness shall be determined according to Test Description Number 2. The steel test plate in contact with the insulation shall show no greater corrosion than a steel plate in contact with sterile cotton. 6.

• CRSC § 12-13 Medium relevance — show source text

  ARTICLE 3. STANDARDS FOR INSULATING MATERIAL

  APPLICATION AND SCOPE

  Sec. 12-13-1551.

  (a) This article establishes standards governing the quality of insulation sold within the state after September 22, 1981, including those properties which affect the safety and thermal performance of insulation during application and in the use intended.

  (b) The provisions of this article shall apply only to the following types of insulating material:

  1. Aluminum foil (reflective foil);

  2. Cellular glass (board form);

  3. Cellulose fiber (loose fill and spray applied);

  4. Mineral aggregate (board form);

  5. Mineral fiber (blankets, board form, loose fill);

  6. Perlite (loose fill);

  7. Polystyrene (board form, molded and extruded);

  8. Polyurethane (board form and field applied);

  9. Polyisocyanurate (board form and field applied);

  10. Urea formaldehyde foam (field applied);

  11. Vermiculite (loose fill).

  (c) The provisions of this article shall apply to the sale of insulating material within the state. The provisions of this article shall not apply to insulating material manufactured in California, but sold outside the state, nor to insulating material manufactured outside California and sold wholesale in California for final retail sale outside the state. For the purpose of this article, the sale of a building or an appliance which contains installed insulating material is not considered the sale of the insulating material.

  (d) Any type of insulating material not listed in subsection (b) may be sold within California notwithstanding any other provision of this article.

  Authority: Sections 25920 and 25922, Public Resources Code.

  Reference: Sections 25910, 25920, 25921 and 25922, Public Resources Code.

  HISTORY:

  1. Repealer of Article 3 (Sections 1551-1561) filed 8-11-78; effective thirtieth day thereafter (Register 78, No. 32). For prior history, see Registers 76, No. 16; 78, Nos. 2 and 26.
  2. New Article 3 (Sections 1551-1565) filed 1-16-79; effective thirtieth day thereafter (Register 79, No. 3).
  3. Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

  DEFINITIONS

  Sec. 12-13-1552. For purposes of this article, the following definitions shall apply:

  (a) “Approved laboratory” means any testing facility including a facility owned or operated by a manufacturer which has been approved pursuant to Section 1554 of this article.

  (b) “ANSI” means the American National Standards Institute.

  (c) “ASTM” means ASTM International.

  (d) “Building materials” means materials used in walls, ceilings, roofs and floors of buildings.

  (e) “Exposed application” means any interior application of the product in which it is not used in a construction assembly imposing a material which meets the requirements of Chapter 8 of the California Building Code in substantial contact with the facing or membrane surface.

  (f) “Installed design density” means the proven density for loose fill insulation other than cellulose which has been determined by the manufacturer to constitute the density whereby settlement of no more than 2 percent shall occur over the first three years, or no more than 4 percent over the first 15 years of installation.

• California Referenced Standards Code Medium relevance — show source text

  Minimum space between layers of a multilayer sheet shall conform with the United States General Services Administration insulation standard HH-I-1252B dated August 18, 1976. 4. Resistance to combustion. Surface-burning characteristics shall be determined according to the ANSI/ ASTM E84-79, and shall not exceed the following values:

  Flame spread. . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Smoke developed. . . . . . . . . . . . . . . . . . . . . . . 50 5. Pliability. Foil shall be folded and the folded edge smoothed using a light finger pressure. The finished insulation shall not crack when folded to 180° bend at a temperature of 70° ± 2°F and a relative humidity of 50 ± 5 percent. (c) Cellular glass in board form.

  1. Composition. The material shall consist of a glass composition which has been foamed or cellulated under molten conditions, annealed and set to form a rigid material with hermetically sealed cells.
  2. Thermal performance. Determination of the thermal performance shall be based on a representative sample and shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option.
  3. Resistance to combustion. Surface-burning characteristics shall be determined according to ANSI/ASTM E84-79, and shall not exceed the following values:

  Flame spread. . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Smoke developed. . . . . . . . . . . . . . . . . . . . . . . 50 (d) Cellulose fiber in loose fill form.

  1. Composition. The basic material shall consist of virgin or recycled wood-based cellulosic fiber and may be made from related paper or paperboard stock, excluding contaminated materials and extraneous foreign materials such as metals and glass which

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  may reasonably be expected to be retained in the finished product. Suitable chemicals may be introduced to improve flame resistance, processing and handling characteristics. The particles shall not be so fine as to create a dust hazard, and the added chemicals shall not create a health hazard. The materials used must be capable of proper adhesion to the additive chemicals. 2. Thermal performance. Determination of the thermal performance shall be in accordance with ANSI/ASTM C177-76, ANSI/ASTM C236-66 or ANSI/ASTM C518-76 at the manufacturer’s option. 3. Density. The density shall be determined according to the United States General Services Administration insulation standard HH-I-515D dated June 15, 1978, or as amended October 11, 1979, at the manufacturer’s option.

• CRSC § 25921.1 Medium relevance — show source text

  5. A declaration that the insulating material complies with the requirements of this article.
  6. The wording of the certification seal, if such seal consists of a statement pursuant to Section 1557 (b) (2) of this article.

  (c) Every certification statement shall be dated and signed by the manufacturer attesting to its truth and accuracy. Where the manufacturer is either a corporation or a business association, the certification statement shall be dated, signed and attested to by a responsible official thereof.

  (d) Within 45 days after receipt of a certification statement, the Executive Director shall forward, to the manufacturer, an acknowledgment that the statement has been received and that it is complete and accurate on its face.

  (e) Certification of the insulation material shall be deemed to occur upon forwarding of the acknowledgement by the Executive Director. If acknowledgment is not forwarded in a timely manner, certification shall be deemed to occur on the 45th day after receipt of the certification statement.

  (f) The statement of test results required in the certification may be based upon tests conducted prior to the adoptive date of this article if: (1) the same test was conducted within two years of the date of adoption, (2) the laboratory at which the tests were

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  conducted has been approved for those tests as of the date of the certification statement, and (3) the laboratory certifies that the test and product are the same as the test and product referred to in the statement of test results.

  Authority: Section 25218(e), Public Resources Code.

  Reference: Sections 25921 and 25921.1, Public Resources Code.

  HISTORY:

  1. Amendment of subsections (a), (b) (4), (b) (6) and (f) filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

  QUALITY ASSURANCE (RESERVED)

  Sec. 12-13-1556.

  Authority: Section 25218 (e), Public Resources Code.

  Reference: Section 25921.1, Public Resources Code.

  HISTORY:

  1. Repealer filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

  IDENTIFICATION

  Sec. 12-13-1557.

  (a) Except as specified in subsection (b), Item 3, of this section, no insulation shall be sold in California on or after September 22, 1981, unless the insulating material, container, bundle or similar packaging material bears a visible Commission approved statement certifying that a representative sample of the insulation material has been tested and approved by an approved laboratory and complies with the requirements of this article.

  (b) The Commission-approved statement shall consist of either:

  1. A design or statement approved by the Executive Director, or

  2. An identification of the manufacturer and any statement that the material meets the quality standards of the State of California.

  3. A statement that the material meets the quality standards of the State of California included in the bill of lading shall meet the requirements of this section only if the product is being shipped in bulk, or the container or product is not otherwise labeled by the manufacturer and the product is being sold to its ultimate user.

• CRSC § 12-11 Medium relevance — show source text

  (c) Conformation, (d) Sound-on-cane acoustic quality, (e) Resilience, and (f) Attachment will not degrade significantly for at least five years.

  SIGNIFICANT DEGRADATION

  Sections 12-11A.210 and 12-11B.210. Significant degradation means that the product maintains at least 90 percent of its approved design characteristics.

  SELECTION OF INDEPENDENT ENTITY

  Sections 12-11A.211 and 12-11B.211. The independent entity selected by the Division of the State Architect-Access Compliance shall be recognized as having appropriate expertise in determining whether products comply with the California Code of Regulations, Title 24.

  Authority: Government Code Sections 4450, 4460 and Health & Safety Code Section 18949.1.

  Reference: Government Code Section 4460.

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  12-13 STANDARDS FOR INSULATING MATERIAL

  (See Part 6, Title 24, CCR)

  DEPARTMENT OF CONSUMER AFFAIRS

  Bureau of Household Goods and Services

  ARTICLE 3. STANDARDS FOR INSULATING MATERIAL

  APPLICATION AND SCOPE

  Sec. 12-13-1551.

  (a) This article establishes standards governing the quality of insulation sold within the state after September 22, 1981, including those properties which affect the safety and thermal performance of insulation during application and in the use intended.

  (b) The provisions of this article shall apply only to the following types of insulating material:

  1. Aluminum foil (reflective foil);

  2. Cellular glass (board form);

  3. Cellulose fiber (loose fill and spray applied);

  4. Mineral aggregate (board form);

  5. Mineral fiber (blankets, board form, loose fill);

  6. Perlite (loose fill);

  7. Polystyrene (board form, molded and extruded);

  8. Polyurethane (board form and field applied);

  9. Polyisocyanurate (board form and field applied);

  10. Urea formaldehyde foam (field applied);

  11. Vermiculite (loose fill).

  (c) The provisions of this article shall apply to the sale of insulating material within the state. The provisions of this article shall not apply to insulating material manufactured in California, but sold outside the state, nor to insulating material manufactured outside California and sold wholesale in California for final retail sale outside the state. For the purpose of this article, the sale of a building or an appliance which contains installed insulating material is not considered the sale of the insulating material.

  (d) Any type of insulating material not listed in subsection (b) may be sold within California notwithstanding any other provision of this article.

  Authority: Sections 25920 and 25922, Public Resources Code.

  Reference: Sections 25910, 25920, 25921 and 25922, Public Resources Code.

• CRSC § 1.55 Medium relevance — show source text

  SECTION BJ108—THERMAL INSULATION

  BJ108.1 R-value. The unit R-value of a strawbale wall with bales laid flat is R-1.55 for each inch of bale thickness. The unit R-value of a strawbale wall with bales on-edge is R-1.85 for each inch of bale thickness.

  BJ108.2 Compliance with Section R302.10.1. Straw bales meet the requirements for insulation materials in Section R302.10.1 for flame spread index and smoke-developed index as tested in accordance with ASTM E84.

  SECTION BJ109—REFERENCED STANDARDS

  BJ109.1 General. See Table BJ109.1 for standards that are referenced in various sections of this appendix. Standards are listed by the standard identification with the effective date, the standard title and the section or sections of this appendix that reference the standard.

  TABLE BJ109.1—REFERENCED STANDARDS	Col2	Col3
  STANDARD ACRONYM	STANDARD NAME	SECTIONS HEREIN REFERENCED
  ASTM C5—10	Standard Specification for Quicklime for Structural Purposes	BJ104.4.6.1
  ASTM C109/C109M—2015el	Standard Test Method for Compressive Strength of Hydraulic Cement Mortars	BJ106.6.1
  ASTM C141/C141M—14	Standard Specification for Hydrated Hydraulic Lime for Structural Purposes	BJ104.4.6.1
  ASTM C206—14	Standard Specification for Finishing Hydrated Lime	BJ104.4.6.1
  ASTM C926—15B	Standard Specification for Application of Portland Cement Based Plaster	BJ104.4.8, BJ104.4.9
  ASTM C1707—11	Standard Specification for Pozzolanic Hydraulic Lime for Structural Purposes	BJ104.4.6.1
  ASTM E84-21a	Standard Test Method for Surface Burning Characteristics of Building Materials	BJ108.2
  ASTM E2392/E2392M—10(2016)	Standard Guide for Design of Earthen Wall Building Systems	BJ104.4.3.2
  CEN EN 459—2015	Part 1: Building Lime. Definitions, Specifications and Conformity Criteria; Part 2: Test Methods	BJ104.4.6.1

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  CALIFORNIA RESIDENTIAL CODE – MATRIX ADOPTION TABLE APPENDIX BK – COB CONSTRUCTION (MONOLITHIC ADOBE)

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

• CRSC § 8-10 Medium relevance — show source text

  (o) “Urea formaldehyde foam” means a cellular plastic insulation material generated in a continuous stream by mixing the components which are a urea formaldehyde resin, air and a foaming agent.

  Authority: Sections 25920 and 25922, Public Resources Code.

  Reference: Sections 25915 (a), 25920, 25921 and 25922, Public Resources Code.

  HISTORY:

  1. Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).

  QUALITY STANDARDS

  Sec. 12-13-1553. The manufacturer shall cause the testing of samples of insulating material for conformity with the quality standards described in this section.

  (a) General testing provisions. In testing any material pursuant to this section, the following general procedures shall be used.

  1. All tests with the exception of the ANSI/ASTM E84-79 test shall be conducted using representative samples at the representative thickness of the insulation, except that when the final use of an insulating material entails a thickness less than the representative thickness, then the insulating material will be tested at the lesser thickness.

  2. Where uniformity of product ensures consistency of test results across a product grouping, test results for one may be used for certification of other products within that product group. The manufacturer shall provide sufficient documentation to establish a valid basis for applying a particular test result to other products within the group. The Executive Director shall determine whether a valid basis exists for grouping products for testing pursuant to this subsection. If it is determined that a valid basis does not exist, individual tests shall be required. A manufacturer may appeal the Executive Director’s determination to the full Commission.

  3. Thermal performance of building insulations shall be stated in R value. Other insulations shall use thermal conductivity, conductance or R value as appropriate.

  4. All thermal performance tests shall be conducted on materials which have been conditioned at 73.4° ± 3.6°F and a relative humidity of 50 ± 5 percent for 24 hours immediately preceding the tests. The average testing temperature shall be 75° ± 2°F with at least a 40°F (4°C) temperature difference.

  5. Aluminum foil insulation shall be tested according to ANSI/ASTM C236-66 to determine the thermal performance in horizontal, upward and downward directions. The tested thermal performance in the heat-flow direction or directions of the intended application shall be labeled on the material. The manufacturer shall test once in each direction of intended application, except that for products labeled with only one heat-flow direction, the manufacturer shall test two samples in that direction.

  6. Insulation (other than aluminum foil insulation materials) for which additional value is claimed for facings and air spaces shall be tested for thermal performance as a material without the air space pursuant to this article. The manufacturer may elect to report additional thermal performance values of a given construction tested according to ANSI/ASTM C236-66 for that construction as long as full details of that construction are also disclosed in the certification statement and pursuant to Section 1557 (c) of this article. If a manufacturer elects to report a thermal performance value for a material plus an air space (as supplemental information to the required material thermal performance), but not necessarily for a full construction, the manufacturer must also disclose the conditions of the test and the limitations to the attainment of that result.

• CRSC § 0.75. Medium relevance — show source text

  7. Except as provided in Items 5 and 6, the thermal performance test results certified under Section 1555 of this article shall be the average of the values obtained from at least three tests.
  8. The average measured thermal performance of the tests required by Items 5, 6 and 7 shall not be more than 5 percent below the value specified on the product. In addition, all insulation material sold within the state after September 22, 1981, shall have a measured thermal performance not more than 10 percent below the value specified on the product.
  9. All numbered test descriptions shall be contained in the document “Test Descriptions for Insulating Material” dated February 27, 1981.

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  10. Facings on representative samples may be removed or modified by slitting for the ANSI/ASTM C177-76 and ANSI/ASTM C518-76 tests.

  11. All thermal performance testing equipment used for testing insulating materials shall be calibrated with samples referenced to the United States National Bureau of Standards.

  12. Manufacturers of loose fill insulations for which no settled density test is required by this section shall be required to include the installed design density in the identifying information described in Section 1557. The manufacturer shall provide sufficient documentation to establish a valid basis for the determination of installed design density. The Executive Director shall determine whether a valid basis exists for the installed design density claimed by the manufacturer. If it is determined that a valid basis does not exist, the director may assign an appropriate installed design density or may require an appropriate test to determine the installed design density. The manufacturer may appeal the Executive Director’s determination to the full Commission.

  13. Within 180 days after the availability of appropriate representative thickness calibration samples from the National Bureau of Standards, all insulating materials thicker than 1 inch (25 mm), which have not previously been tested at the representative thickness of a representative sample, shall be tested at representative thickness and recertified. Test results and a revised certification statement will be submitted to the Executive Director. The Executive Director shall determine if and when an appropriate representative thickness calibration sample is available from the National Bureau of Standards and shall publish a list of available representative thickness calibration samples. The manufacturer may appeal the Executive Director’s determination to the full Commission.

  14. All products which may be used for pressure fill retrofit wall application shall be separately tested for thermal performance using a sample prepared at the manufacturer’s recommended wall density for such applications.

  15. All water heater insulation kits and nonpreformed pipe insulation shall be tested for thermal performance at the installed compressed thickness of a typical application. Installed compressed thickness shall be determined according to Test Description Number 6. All nonpreformed duct insulation shall be labeled, in accordance with Section 1557(c), with an installed R -value equal to the R -value of the uncompressed insulation times 0.75. (b) Aluminum foil.

  16. Composition. The insulation shall have uniform flat surfaces and shall not be crumpled, torn or punctured. Aluminum foil shall contain not less than 99 percent aluminum. Kraft paper and flangeboard shall meet the requirements of ANSI/TAPPI T400 0S75. Flangeboard used for more than two insulation layers shall be of 28 point grade minimum, if single sheet flangeboard is used or 14 point grade minimum if double sheet flangeboard is used.

• CRSC § 6.1 Medium relevance — show source text

  d
  (pcf)|MINIMUM COMPRES-
  SIVE STRENGTH PER
  SECTION BK106.6.1
  (psi)|WALL-TYPE
  REINFORCEMENT
  PER TABLE
  BK105.3|MINIMUM
  THICKNESSc, e, f AT
  TOP OF WALL
  (inches)|MINIMUM
  THICKNESSc, e, f AT
  BOTTOM OF WALL
  (inches)**| |1,200|100|85|E|9|12| |475|≥ 50 pcf: less than
  40 inches from top of wall|40b|E or F|8|12| |475|≥ 70 pcf: from 40 inches to 80
  inches from top of wall|55b|55b|55b|55b| |475|≥ 90 pcf: more than 80 inches
  from top of wall|85|85|85|85| |Nonload bearing|50 to 100|≥ 60 psi
  < 60 psib|E or F|9|9| |For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
  a.
  Density is to be measured at equilibrium moisture content. Average wall density shall be within ±5 pcf of the tabulated value.
  b.
  Requires an approved engineered design per Section BK106.6.
  c.
  Cob thickness only. The interior and exterior cob faces shall be permitted to be unfinished or receive any plaster finish allowed by this appendix.
  d.
  Cob walls with more than one density shall be built with heavier densities below lighter densities.
  e.
  Minimum cob wall thickness shall be whichever is greater in Tables BK105.3, BK106.11(1) and BK108.1.
  f.
  Wall thicknesses less than 10 inches require an engineered design.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
  a.
  Density is to be measured at equilibrium moisture content. Average wall density shall be within ±5 pcf of the tabulated value.
  b.
  Requires an approved engineered design per Section BK106.6.
  c.
  Cob thickness only. The interior and exterior cob faces shall be permitted to be unfinished or receive any plaster finish allowed by this appendix.
  d.
  Cob walls with more than one density shall be built with heavier densities below lighter densities.
  e.
  Minimum cob wall thickness shall be whichever is greater in Tables BK105.3, BK106.11(1) and BK108.1.
  f.
  Wall thicknesses less than 10 inches require an engineered design.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
  a.
  Density is to be measured at equilibrium moisture content.

• CRSC § 73.4 Medium relevance — show source text

  A manufacturer may appeal the Executive Director’s determination to the full Commission.

  3. Thermal performance of building insulations shall be stated in R value. Other insulations shall use thermal conductivity, conductance or R value as appropriate.

  4. All thermal performance tests shall be conducted on materials which have been conditioned at 73.4° ± 3.6°F and a relative humidity of 50 ± 5 percent for 24 hours immediately preceding the tests. The average testing temperature shall be 75° ± 2°F with at least a 40°F (4°C) temperature difference.

  5. Aluminum foil insulation shall be tested according to ANSI/ASTM C236-66 to determine the thermal performance in horizontal, upward and downward directions. The tested thermal performance in the heat-flow direction or directions of the intended application shall be labeled on the material. The manufacturer shall test once in each direction of intended application, except that for products labeled with only one heat-flow direction, the manufacturer shall test two samples in that direction.

  6. Insulation (other than aluminum foil insulation materials) for which additional value is claimed for facings and air spaces shall be tested for thermal performance as a material without the air space pursuant to this article. The manufacturer may elect to report additional thermal performance values of a given construction tested according to ANSI/ASTM C236-66 for that construction as long as full details of that construction are also disclosed in the certification statement and pursuant to Section 1557 (c) of this article. If a manufacturer elects to report a thermal performance value for a material plus an air space (as supplemental information to the required material thermal performance), but not necessarily for a full construction, the manufacturer must also disclose the conditions of the test and the limitations to the attainment of that result.

  7. Except as provided in Items 5 and 6, the thermal performance test results certified under Section 1555 of this article shall be the average of the values obtained from at least three tests.

  8. The average measured thermal performance of the tests required by Items 5, 6 and 7 shall not be more than 5 percent below the value specified on the product. In addition, all insulation material sold within the state after September 22, 1981, shall have a measured thermal performance not more than 10 percent below the value specified on the product.

  9. All numbered test descriptions shall be contained in the document “Test Descriptions for Insulating Material” dated February 27, 1981.

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  STANDARDS FOR INSULATING MATERIAL

  10. Facings on representative samples may be removed or modified by slitting for the ANSI/ASTM C177-76 and ANSI/ASTM C518-76 tests.

  11. All thermal performance testing equipment used for testing insulating materials shall be calibrated with samples referenced to the United States National Bureau of Standards.

  12. Manufacturers of loose fill insulations for which no settled density test is required by this section shall be required to include the installed design density in the identifying information described in Section 1557. The manufacturer shall provide sufficient documentation to establish a valid basis for the determination of installed design density. The Executive Director shall determine whether a valid basis exists for the installed design density claimed by the manufacturer. If it is determined that a valid basis does not exist, the director may assign an appropriate installed design density or may require an appropriate test to determine the installed design density. The manufacturer may appeal the Executive Director’s determination to the full Commission.

• CRSC § 12-10 Medium relevance — show source text

  CHAPTER 12-10-1 EXITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

  CHAPTER 12-10-2 EXITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

  CHAPTER 12-10-3 EXITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

  CHAPTERS 12-11A AND 12-11B

  BUILDING AND FACILITY ACCESS

  SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 85

  CHAPTER 12-12 RESERVED . . . . . . . . . . . . . . . . . . . . . . . . . 87

  CHAPTER 12-13 STANDARDS FOR INSULATING

  MATERIAL. . . . . . . . . . . . . . . . . . . . . . . . . . 89

  CHAPTER 12-16-1 ENGINEERING REGULATIONS—QUALITY

  AND DESIGN OF THE MATERIALS OF

  CONSTRUCTION . . . . . . . . . . . . . . . . . . . 101

  CHAPTER 12-16-2 ENGINEERING REGULATIONS—QUALITY

  AND DESIGN OF THE MATERIALS OF

  CONSTRUCTION . . . . . . . . . . . . . . . . . . . 103

  CHAPTER 12-31C RADIATION SHIELDING STANDARDS . . 105

  CHAPTER 12-71 AIR FILTERS. . . . . . . . . . . . . . . . . . . . . . . 107

  CHAPTER 12-72-1 PROTECTIVE SIGNALING SYSTEMS . . . 109

  CHAPTER 12-72-2 PROTECTIVE SIGNALING SYSTEMS . . . 123

  CHAPTER 12-72-3 PROTECTIVE SIGNALING SYSTEMS . . . 133

  HISTORY NOTE APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

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  PART 12 CROSS REFERENCE TABLE

  (Cross reference table is nonregulatory, intended only as an aid to the code user.)