2011 Volume 76 Issue 661 Pages 673-679
The following became clear as the result of investigation of mortar coating finish of external wall with lath on site.
1. Inapplicable waterproof paper which is not shown on JASS 15 is used nationwide.
2. It is recognized that flat lath is used nationwide.
3. It is recognized that inapplicable staple is used in all areas.
4. Lightening of mortar has improeed, but it is recognized that light weight mortar as existing compounding does not yet spread the whole country.
As a result of investigation, at the time of an earthquake of detaching and exfoliating external wall of lath mortar are concerned about.