UT Code § 15A-2a-202 (2021)
2021 Utah Code|Title 15A - State Construction and Fire Codes Act|Chapter 2a - Tall Wood Buildings of Mass Timber Construction Incorporated as Part of State Construction Code|Part 2 - Statewide Amendments to International Building Code|Section 202 - Amendments to Chapter 5 of IBC.

 Effective 5/12/2020  15A-2a-202. Amendments to Chapter 5 of IBC.    (1) In IBC, Table 504.3, is deleted and replaced with the following: "Table 504.3 ALLOWABLE BUILDING HEIGHT IN FEET ABOVE GRADE PLANE     OCCUPANCY CLASSIFICATIONTYPE OF CONSTRUCTION   SEE FOOTNOTESTYPE ITYPE IITYPE IIITYPE IVTYPE V   ABABABABCHTAB   A, B, E, F, M, S, UNSbUL16065556555656565655040   SUL1808575857518012085857060   H-1, H-2, H-3, H-5NSc, dUL160655565551209065655040   S   H-4NSc, dUL16065556555656565655040   SUL1808575857514010085857060   I-1 Condition 1, I-3NSd, eUL16065556555656565655040   SUL1808575857518012085857060   I-1 Condition 2, I-2NSd, e, fUL16065556555656565655040   SUL18085   I-4NSd, gUL16065556555656565655040   SUL1808575857518012085857060   RhNSdUL16065556555656565655040   S13D606060606060606060605040   S13R606060606060606060606060   SUL1808575857518012085857060  For SI: 1 foot = 304.8 mm UL = Unlimited; NS = Buildings not equipped throughout with an automatic sprinkler system; S = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1; S13R = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.2; S13D = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.3. a. See Chapters 4 and 5 for specific exceptions to the allowable height in this chapter. b. See Section 903.2 for the minimum thresholds for protection by an automatic sprinkler system for specific occupancies. c. New Group H occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.5. d. The NS value is only for use in evaluation of existing building area in accordance with the IEBC. e. New Group I-1 and I-3 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6. For new Group I-1 occupancies, Condition 1, see Exception 1 of Section 903.2.6. f. New and existing Group I-2 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6 and Section 1103.5 of the International Fire Code. g. New Group I-4 occupancies see Exceptions 2 and 3 of Section 903.2.6. h. New Group R occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.8."     (2) In IBC, Table 504.4, "Allowable Number of Stories Above Grade Planea, b" delete Type IV and replace it with the following, in relation to the occupancy classification and footnotes as indicated:     OCCUPANCY CLASSIFICATIONTYPE OF CONSTRUCTION   SEE FOOTNOTESTYPE IV   ABCHT   A-1NS3333   S9644   A-2NS3333   S181264   A-3NS3333   S181264   A-4NS3333   S181264   A-5NS111UL   SULULULUL   BNS5555   S181296   ENS3333   S9644   F-1NS3334   S10755   F-2NS5555   S12866   H-1NSc, dNPNPNP1   S111   H-2NSc, d1112   S222   H-3NSc, d3334   S444   H-4NSc, d5555   S8766   H-5NSc, d2223   S333   I-1 Condition 1NSd, e4444   S10755   I-1 Condition 2NSd, e3334   S1064   I-2NSd, fNPNPNP1   S751   I-3NSd, e2222   S7533   I-4NSd, g3333   S9644   MNS4444   S12865    R-1h  NSd4444   S13R   S181285   R-2hNSd4444   S13R   S181285   R-3hNSd4444   S13D   S13R   S181255   R-4hNSd4444   S13D   S13R   S181255   S-1NS4444   S10755   S-2NS4444   S12855   UNS4444   S9655   UL = Unlimited; NP = Not Permitted; NS = Buildings not equipped throughout with an automatic sprinkler system; S = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1; S13R = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.2; S13D = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.3. a. See Chapters 4 and 5 for specific exceptions to the allowable height in this chapter. b. See Section 903.2 for the minimum thresholds for protection by an automatic sprinkler system for specific occupancies. c. New Group H occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.5. d. The NS value is only for use in evaluation of existing building height in accordance with the IEBC. e. New Group I-1 and I-3 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6. For new Group I-1 occupancies, Condition 1, see Exception 1 of Section 903.2.6. f. New and existing Group I-2 occupancies are required to be protected by an automatic sprinkler system in accordance with Sections 903.2.6 and 1103.5 of the International Fire Code. g. For new Group I-4 occupancies, see Exceptions 2 and 3 of Section 903.2.6. h. New Group R occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.8."     (3) In IBC, Table 506.2, "Allowable Area Factor (At = NS, S1, S13R, S13D or SM, as applicable) in Square Feeta, b" delete Type IV and replace it with the following, in relation to the occupancy classification and footnotes as indicated:     "OCCUPANCY CLASSIFICATIONSEE FOOTNOTESTYPE OF CONSTRUCTION   TYPE IV   ABCHT   A-1NS45,00030,00018,75015,000   S1180,000120,00075,00060,000   SM135,00090,00056,25045,000   A-2NS45,00030,00018,75015,000   S1180,000120,00075,00060,000   SM135,00090,00056,25045,000   A-3NS45,00030,00018,75015,000   S1180,000120,00075,00060,000   SM135,00090,00056,25045,000   A-4NS45,00030,00018,75015,000   S1180,000120,00075,00060,000   SM135,00090,00056,25045,000   A-5NSULULULUL   S1   SM   BNS108,00072,00045,00036,000   S1432,000288,000180,000144,000   SM324,000216,000135,000108,000   ENS76,50051,00031,87525,500   S1306,000204,000127,500102,000   SM229,500153,00095,62576,500   F-1NS100,50067,00041,87533,500   S1402,000268,000167,500134,000   SM301,500201,000125,625100,500   F-2NS151,500101,00063,12550,500   S1606,000404,000252,500202,000   SM454,500303,000189,375151,500   H-1NSc10,50010,50010,50010,500   S1   H-2NSc10,50010,50010,50010,500   S1   SM   H-3NSc25,50025,50025,50025,500   S1   SM   H-4NSc, d72,00054,00040,50036,000   S1288,000216,000162,000144,000   SM216,000162,000121,500108,000   H-5NSc, d72,00054,00040,50036,000   S1288,000216,000162,000144,000   SM216,000162,000121,500108,000   I-1NSd, e54,00036,00018,00018,000   S1216,000144,00072,00072,000   SM162,000108,00054,00054,000   I-2NSd, f36,00024,00012,00012,000   S1144,00096,00048,00048,000   SM108,00072,00036,00036,000   I-3NSd, e36,00024,00012,00012,000   S1144,00096,00048,00048,000   SM108,00072,00036,00036,000   I-4NSd, g76,50051,00025,50025,500   S1306,000204,000102,000102,000   SM229,000153,00076,50076,500   MNS61,50041,00025,62520,500   S1246,000164,000102,50082,000   SM184,500123,00076,87561,500   R-1hNSd61,50041,00025,62520,500   S13R   S1246,000164,000102,50082,000   SM184,500123,00076,87561,500   R-2hNSd61,50041,00025,62520,500   S13R   S1246,000164,000102,50082,000   SM184,500123,00076,87561,500   R-3hNSdULULULUL   S13D   S13R   S1   SM   R-4hNSd61,50041,00025,62520,500   S13D   S13R   S1246,000164,000102,50082,000   SM184,500123,00076,87561,500   S-1NS76,50051,00031,87525,500   S1306,000204,000127,500102,000   SM229,500153,00095,62576,500   S-2NS115,50077,00048,12538,500   S1462,000308,000192,500154,000   SM346,500308,000144,375115,500   UNSi54,00036,00022,50018,000   S1216,000144,00090,00072,000   SM162,000108,00067,50054,000   For SI: 1 square foot = 0.0929 m2. UL = Unlimited; NP = Not Permitted; NS = Buildings not equipped throughout with an automatic sprinkler system; S1 = Buildings a maximum of one story above grade plane equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1; SM = Buildings two or more stories above grade plane equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1; S13R = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.2; S13D = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.3. a. See Chapters 4 and 5 for specific exceptions to the allowable height in this chapter. b. See Section 903.2 for the minimum thresholds for protection by an automatic sprinkler system for specific occupancies. c. New Group H occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.5. d. The NS value is only for use in evaluation of existing building area in accordance with the IEBC. e. New Group I-1 and I-3 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6. For new Group I-1 occupancies, Condition 1, see Exception 1 of Section 903.2.6. f. New and existing Group I-2 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6 and Section 1103.5 of the International Fire Code. g. For New Group I-4 occupancies see Exceptions 2 and 3 of Section 903.2.6. h. New Group R occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.8. i. The maximum allowable area for a single-story nonsprinklered Group U greenhouse is permitted to be 9,000 square feet, or the allowable area shall be permitted to comply with Table C102.1 of Appendix C."     (4) In IBC, Section 508.4.4 is deleted and replaced with the following: "508.4.4 Separation. Individual occupancies shall be separated from adjacent occupancies in accordance with Table 508.4."     (5) In IBC, Section 508.4.4.1 is deleted and replaced with the following: "508.4.4.1 Construction. Required separations shall be fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both, so as to completely separate adjacent occupancies. Mass timber elements serving as fire barriers or horizontal assemblies to separate occupancies in Type IV-B or IV-C construction shall be separated from the interior of the building with an approved thermal barrier consisting of a minimum of 1/2 inch (12.7 mm) gypsum board or a material that is tested in accordance with and meets the acceptance criteria of both the Temperature Transmission Fire Test and the Integrity Fire Test of NFPA 275."     (6) In IBC, Section 509, a new section is added as follows: "509.4.1.1 Type IV-B and IV-C construction. Where Table 509 specifies a fire-resistance-rated separation, mass timber elements serving as fire barriers or a horizontal assembly in Type IV-B or IV-C construction shall be separated from the interior of the incidental use with an approved thermal barrier consisting of a minimum of 1/2 inch (12.7 mm) gypsum board or a material that is tested in accordance with and meets the acceptance criteria of both the Temperature Transmission Fire Test and the Integrity Fire Test of NFPA 275."    Enacted by Chapter 43, 2020 General Session