Minnesota Administrative Rules

1309.0702 SECTION R702, INTERIOR COVERING.

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

		CEMENTITIOUS MATERIALS
COAT	CEMENT PLASTER TYPE	Portland Cement Type I, II or III or Blended Cement Type IP, I(PM), IS or I(SM)	Plastic Cement	Masonry Cement Type M, S or N	Lime	VOLUME OF AGGREGATE PER SUM OF SEPARATE VOLUMES OF CEMENTI- TIOUS MATERIALSb
	Portland or blended	1			3/4 - 1-1/2a	2-1/2 - 4
First	Masonry			1		2-1/2 - 4
	Plastic		1			2-1/2 - 4
	Portland or blended	1			3/4 - 1-1/2	3 - 5
Second	Masonry			1		3 - 5
	Plastic		1			3 - 5
	Portland or blended	1			3/4 - 2	1-1/2 - 3
Finish	Masonry			1		1-1/2 - 3
	Plastic		1			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.

Statutory Authority:

MS s 326B.02; 326B.101; 326B.106

History:

39 SR 91

Published Electronically:

January 26, 2015