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3939thth Annual WCBC Refresher Annual WCBC Refresher FebruaFebruary 17, 2010 ry 17, 2010

Existing BuildingsExisting Buildings

James B. Smith, P.E. – Program Manager James B. Smith, P.E. – Program Manager

(608) 266-0251 (608) 266-0251 Jim.Smith@wi.govJim.Smith@wi.gov

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What Is the Session About?What Is the Session About?• All things Existing & the IEBC . . . All things Existing & the IEBC . . . • Information on the “prescriptive Information on the “prescriptive

compliance method” and why it’s not compliance method” and why it’s not used in Wisconsinused in Wisconsin

• Alteration Levels I, II & III and how the provisions are applied

• Historic Buildings• Fire-Resistive Construction• Wisconsinisms

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Change from mercantile to office spaceChange from mercantile to office space

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IEBC TABLE 912.4IEBC TABLE 912.4

HAZARD CATEGORIESMEANS OF EGRESS

RELATIVE HAZARD OCCUPANCY CLASSIFICATIONS

1 (Highest Hazard)

2

3

4

5

H

I-2, I-3, I-4

A, E, I-1, M, R-1, R-2, R-4

B, F-1, R-3, S-1

F-2, S-2, U (Lowest Hazard)

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Section 1103.8 Glazing in Section 1103.8 Glazing in fire-resistive systemsfire-resistive systems

• ... Unrated historic glazing can be ... Unrated historic glazing can be allowed to remain when provided allowed to remain when provided with approved smoke seals and with approved smoke seals and sprinklered...sprinklered...

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Mixed Occ’ys [1301.6.16] (cont)Mixed Occ’ys [1301.6.16] (cont)

• Under the categories and occupancies in Under the categories and occupancies in Table 1301.6.16, determine the Table 1301.6.16, determine the appropriate value and enter that value appropriate value and enter that value into Table 1301.7 under Safety Parameter into Table 1301.7 under Safety Parameter 1301.6.16, Mixed Occupancies, for fire 1301.6.16, Mixed Occupancies, for fire safety and general safety. For buildings safety and general safety. For buildings without mixed occupancies, the value without mixed occupancies, the value shall be zero.shall be zero.