Minnesota Administrative Rules
Agency 151 - Labor and Industry Department
Chapter 1309 - INTERNATIONAL RESIDENTIAL CODE
Part 1309.0702 - SECTION R702, INTERIOR COVERING

Universal Citation: MN Rules 1309.0702

Current through Register Vol. 49, No. 13, September 23, 2024

Subpart 1. IRC Table R702.1(3).

Table R702.1(3) is amended to read as follows:

TABLE R702.1(3) CEMENT PLASTER PROPORTIONS, PARTS BY VOLUME

COATCEMENT PLASTER TYPE CEMENTITIOUS MATERIALSVOLUME OF AGGREGAT PER SUM OF SEPARATE VOLUMES OF CEMENTITIOUS MATERIALSb
Portland Cement Type I, II or III or Blended Cement Type IP, I(PM), IS or I(SM) Plastic CementMasonry Cement Type M, S or N Lime
FirstPortland or blended13/4 - 1-1/2a 2-1/2 - 4
Masonry1 2-1/2 - 4
Plastic1 2-1/2 - 4
SecondPortland or blended1 3/4 - 1-1/23-5
Masonry1 3-5
Plastic1 3-5
FinishPortland or blended1 3/4-21-1/2 - 3
Masonry11-1/2 - 3
Plastic1 1-1/2 - 3

For SI: 1 inch = 25.4 mm, 1 pound = 0.545 kg.

a. Lime by volume of 0 to 3/4 shall be used when the plaster will be placed over low-absorption surfaces such as dense clay tile or brick.

b. The same or greater sand proportion shall be used in the second coat than used in the first coat.

Subp. 2. IRC section R702.7 Vapor retarders.

Section R702.7 is amended to read as follows:

R702.7 Vapor retarders. A Class I or II vapor retarder is required on the interior side of frame walls in Climate Zones 6 and 7. Class II vapor retarders are permitted only when specified on the construction documents.

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