13-200-440 Archaic materials.

   Materials already existing in older buildings which have not been tested in accordance with contemporary standards may be acceptable, if they meet the National Institute for Building Sciences “Guideline on Fire Rating of Archaic Materials and Assemblies” for the rating as required. The NIBS guidelines list a large number of common archaic assemblies of materials for walls, columns, floors and ceilings, beams, and doors with recommended fire resistances in hours. The guidelines describe how to evaluate any archaic material assembly which is not listed or tested. This standard, which is available for reference at the department of buildings, should be consulted for any questionable existing archaic assembly which is required by code to meet a specific fire resistance. It may also be used in those cases where it is desirable to install an archaic material with a required rating to match an archaic material already existing elsewhere in the building. Such archaic assemblies do not have to be brought before the building board of appeals to be acceptable if the appropriate standards are referenced on the permit application.

(Prior code § 78.1-43; Amend Coun. J. 9-13-89, p. 4604; Amend Coun. J. 3-5-03, p. 104990, § 40; Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1)

13-200-450 Moving buildings.

   Whenever buildings are moved all repair work made necessary by such move shall comply with the rehabilitation standards described in this chapter.

(Prior code § 78.1-44; Amend Coun. J. 9-13-89, p. 4604)

13-200-460 Plumbing requirements.

   Any existing residential building undergoing rehabilitation, remodeling, addition or repair pursuant to the provisions of this chapter, and which does not exceed four stories in height may utilize a three-inch soil stack in a four story building with a plumbing fixture unit capacity not exceeding 60 fixture units and in a building three stories or less in height with a plumbing fixture unit capacity not exceeding 30 fixture units, with not more than two water closets per floor or two water closets per horizontal branch, with no installation exceeding six water closets per stack. The waste connections to any water closet shall be provided with an approved four-inch closet flange. All additional modifications or alterations to an existing plumbing system shall meet the requirements of Chapter 18-29 of the Municipal Code.

(Prior code § 78.1-45; Amend Coun. J. 5-16-90, p. 15706; Amend Coun. J. 3-28-01, p. 55444, § 6)

13-200-470 Electrical requirements.

   When alterations, remodeling or repairs being made pursuant to the provisions of this chapter encompass 60 percent or more of a building structure, dwelling unit or electrical system, then, the wiring serving such building or dwelling unit shall conform to the provisions of Section 14E-5-560.

(Prior code § 78.1-46; Amend Coun. J. 11-9-16, p. 36266, § 27; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 48)

13-200-480 Alteration, remodeling or repairs less than 60 percent of structure – Wiring standards.

   When alterations, remodeling or repairs being made pursuant to the provisions of this chapter encompass less than 60 percent of a building structure, dwelling unit or electrical system in an existing residential building not exceeding four stories in height or in the residential portion of an existing building of mixed occupancy not exceeding four stories in height, then, the wiring serving such building or dwelling unit shall conform to the minimum standards as set forth in Section 14E-5-570.

(Prior code § 78.1-47; Amend Coun. J. 11-9-16, p. 36266, § 27; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 49)