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New Hampshire residential appliance installer license prep class instal the last version for android3/24/2024 MAXIMUM VOLUME AGGREGATE PER 100 POUNDS NEAT PLASTER b (cubic feet)įor SI: 1 inch = 25.4 mm, 1 cubic foot = 0.0283 m 3, 1 pound = 0.454 kg. TABLE R702.1(2) GYPSUM PLASTER PROPORTIONS a NUMBER Where gypsum board is used as a base for cement plaster, a water-resistive barrier complying with Section R703.2 shall be provided.Attachment shall be in accordance with Table R702.3.5.Approved acoustical plaster shall be permitted to be applied directly to concrete or over base coat plaster, beyond the maximum plaster thickness shown.Where applied over a liquid bonding agent, finish coat shall be permitted to be applied directly to concrete surface.Because masonry and concrete surfaces vary in plane, thickness of plaster need not be uniform.Where measured from face of support or backing.Where measured from back plane of expanded metal lath, exclusive of ribs, or self-furring lath, plaster thickness shall be 3/ 4 inch minimum.TABLE R702.1(1) THICKNESS OF PLASTER PLASTER BASEįINISHED THICKNESS OF PLASTER FROM FACE OF LATH, MASONRY, CONCRETE (inches)ģ/ 4, minimum (interior) b 7/ 8, minimum (exterior) b Interior finishes and materials shall conform to the flame spread and smoke-development requirements of Section R302.9. Interior masonry veneer shall comply with the requirements of Section R703.7.1 for support and Section R703.7.4 for anchorage, except an airspace is not required. Interior coverings or wall finishes shall be installed in accordance with this chapter and Table R702.1(1), Table R702.1(2), Table R702.1(3) and Table R702.3.5.
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