1482.02 EXTERIOR WALLS.

   (a)   The following table shall govern the minimum thickness in inches of exterior walls:

 

Foundations of Stone
Stone Walls
Stories	B	1st.	2nd.	3rd.	4th.
One	16	16
Two or 2 ½	18	16	16
Three	20	18	16	16
Four	22	18	16	16

 

Brick Walls
Stories	B	1st.	2nd.	3rd.	4th.	5th.	6th.
One	16	8
Two or 2 ½	16	8	8
Three	18	12	8	8
Four	22	16	12	8	8
Five	24	20	16	12	12	8
Six	28	20	20	16	12	12	8

 

 

Frame Walls	B
One	16
Two or 2 ½	16
Three	18

 

 

Hollow Tile or Concrete Walls
Stories	Foundation
One	16
Two	16	8	8
Three	18	16	12	8

 

Foundations of Poured Stone or Pebble-Cement Concrete
Brick Walls	B	1st.	2nd.	3rd.	4th.	5th.	6th.
One	10	8
Two or 2 ½	10	8	8
Three	12	12	12	8
Four	16	16	12	8	8
Five	20	16	16	12	12	8
Six	24	20	16	16	12	12	8

 

 

Frame Walls
Stories	Foundation
One	10
Two	12
Three	16

 

 

Walls Made of Stone or Pebble-Cement Concrete Blocks
Stories	B	1st.	2nd.	3rd.
One	10	8
Two or 2 ½	10	8	8
Three	12	12	12	8

 

   Foundation of concrete block (except cinder block): Same table as for poured concrete with a maximum height of two stories.

   One story frame structures or garages may be placed upon brick, stone, concrete or concrete block foundations (except cinder blocks) having a minimum width of eight inches and a minimum depth of eighteen inches.

   (b)   When the clear span is over twenty-six feet, all bearing walls shall be increased four inches in thickness for masonry of solid or hollow units, excepting stone, and two inches for stone over the above table for every additional ten feet or fraction thereof to span, except that piers, buttresses or hollow column may be used for bearings or girders or trusses in lieu of additional thickness of walls.

   (c)   If the wall is over seventy-five feet in length, without cross-walls, piers or buttresses, it shall be increased four inches in thickness for every additional seventy-five feet in length or fraction thereof.

   (d)   No hollow tile or hollow cement-concrete blocks shall be used either filled or not filled as piers or pilasters in any building.

(Ord. 288.  Passed 5-24-54.)