New Hampshire Code of Administrative Rules
Saf - Department of Safety
Subtitle Saf-C - Commissioner, Department of Safety
Chapter Saf-C 1600 - EXPLOSIVES
Part Saf-C 1610 - CONSTRUCTION OF TYPE 1 STORAGE FACILITIES
Section Saf-C 1610.02 - Buildings

Universal Citation: NH Admin Rules Saf-C 1610.02

Current through Register No. 40, October 3, 2024

(a) All Type 1 building-type storage facilities shall be constructed of masonry, wood, metal, or a combination of these materials and shall have no opening except for entrances and ventilation. Ground around such storage facilities shall slope away from the building for drainage purposes.

(b) If the storage facility is of a masonry wall construction, the following shall apply:

(1) Masonry wall construction shall consist of brick, concrete, tile, cement block, or cinder block and shall be not less than 6 inches in thickness;

(2) Hollow masonry units used in construction shall have all hollow spaces filled with well-tamped, coarse, dry sand or weak concrete, the latter being a mixture of one part cement and 8 parts of sand with enough water to dampen the mixture while tamping in place; and

(3) Interior walls shall be covered with a non-sparking material.

(c) If the storage facility is of a fabricated metal wall construction, the following shall apply:

(1) The metal wall construction shall consist of sectional sheets of steel or aluminum not less than number 14 gauge, securely fastened to a metal framework;

(2) The metal wall construction shall be either:
a. Lined inside with brick, solid cement blocks, or hardwood not less than 4 inches in thickness; or

b. Have at least a 6 inch sand fill between interior and exterior walls; and

(3) Interior walls shall be constructed of or covered with a non-sparking material.

(d) If the storage facility is of a wood frame wall construction, the following shall apply:

(1) The exterior of the outer wood walls shall be covered with iron or aluminum not less than number 26 gauge;

(2) An inner wall of non-sparking material shall be constructed so as to provide a space of not less than 6 inches between the outer and inner walls; and

(3) The space between the inner and outer walls shall be filled with coarse, dry sand or weak concrete.

#2220, eff 12-31-82; ss by #2837, eff 8-27-84; ss by #4584, eff 3-3-89; ss by #5996, INTERIM, eff 3-3-95, EXPIRES, 7-1-95; ss by #6054, eff 7-1-95, EXPIRED: 7-1-03

New. #8116, INTERIM, eff 7-14-04, EXPIRES: 1-10-05; ss by #8231, eff 12-20-04

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