Minnesota Administrative Rules

1311.0403 SECTION 403, ALTERATIONS.

Subpart 1.

Section 403.1 General.

IEBC section 403.1, the exceptions, are amended to read as follows:

Exceptions:

1. An existing stairway shall not be required to comply with the requirements of the International Building Code provided the existing or replacement stairway complies with the following: Existing stairs in buildings shall be permitted to remain if the rise does not exceed 8.25 inches (210 mm) and the run is not less than 9 inches (229 mm). Existing stairs are permitted to have a minimum width of 36 inches (914 mm), but not less than the width required for the number of occupants served, as determined by the International Building Code.

2. The replacement of an existing stairway may maintain its original rise and run if compliance with exception 1 is technically infeasible.

3. Handrails otherwise required to comply with chapter 10 of the IBC shall not be required to comply with handrail extension requirements if the handrail extensions hinder the required means of egress.

Subp. 2.

Section 403.3 Existing structural elements carrying gravity load.

IEBC section 403.3 is amended to read as follows:

403.3 Existing structural elements carrying gravity load. Any existing gravity load-carrying structural element for which an alteration causes an increase in design gravity load of more than 5 percent, shall be evaluated by a licensed design professional and modified, if necessary, to ensure it is designed to carry the increased gravity load as required by the International Building Code for new structures. Any existing gravity load-carrying structural element whose gravity load-carrying capacity is decreased as a part of the alteration shall be shown to have the capacity to resist the applicable design gravity loads required by the International Building Code for new structures.

(IEBC subsection 403.3.1 remains unchanged.)

Subp. 3.

[Repealed, 39 SR 95]

Subp. 4.

[Repealed, 39 SR 95]

Subp. 5.

[Repealed, 39 SR 95]

Subp. 6.

[Repealed, 39 SR 95]

Subp. 7.

[Repealed, 39 SR 95]

Subp. 8.

Section 403.6 Smoke alarms.

IEBC section 403.6 is amended to read as follows:

403.6 Smoke alarms. Individual sleeping units and individual dwelling units in Group R and I-1 occupancies shall be provided with smoke alarms in accordance with the Minnesota Building Code, chapter 1305.

Statutory Authority:

MS s 16B.59; 16B.61; 16B.64; 326B.02; 326B.101; 326B.106; 326B.13

History:

27 SR 1479; L 2007 c 140 art 4 s 61; art 13 s 4; 39 SR 95

Published Electronically:

January 26, 2015