308 



SOME MUNICIPAL ENGINEERING I'liOBLEMS IN THE TROPICS 



Special 

 Regulations 

 (continued j 



FuiituUitlons 



41. The foundations of all walls shall be of concrete, squared stone or burnt brick laid in cement or other 

 suitable and substantial material and shall be laid at such depth as to secure a solid bed or stratum for building 

 on. Except where such foundations are in contact with an existing building or rest upon solid rock they shall 

 project beyoud the face of the wall on each side to the extent of one-half of the thickness of the wall or to such 

 greater extent as the Municipal Authority may consider necessary. Where a building is on alluvial soil such as 

 Nile mud which is likely to be affected by the rise and fall of the river the load to be put on such a soil must not 

 exceed one ton per square foot (one kilo, per square centimetre approximately) of foundation. Where any 

 foundations are laid at a lower level than the foundations of a wall contiguous thereto such contiguous wall shall 

 be underpinned and supported in a satisfactory manner. Where such contiguous wall has been built with 

 proiecting foundations or footings the person Ijuilding against the same may in absence of any <'ontract or 

 aErreement with respect to the laying of such foundations or the removal of the projections thereof require the 

 owner of such wall to cut off the footings of the foundations at and along the line of boundary and failing such 

 owner complying with such requisition the person building may himself cut oft such footings and cliarge the 

 owner with the cost of the operation in so far as such cost exceeds the ordinary cost of excavating for a foundation 

 of similar dimensions on such a site. The diminution of the footing of every wall shall be formed in regular offsets. 



Willis lu be solid 



42. Every wall built of stone, burnt brick or other similar material shall be properly bonded and solidly put 

 together with mortar and all return walls and all jiartitiun walls Ijuilt of brick or stone shall be projjcrly lionded 

 to the walls adjoining but where a new building is erected against an existing building it shall not be necessary 

 to bond the walls thereof into the existing building. The top of every wall shall be securely rendered or 

 weathered or otherwise protected so as to prevent the access of damp or water to the wall. 



Willis mil lu uvcrluiiuj 



43. No part of any wall fi'outiug or abutting on any street shall overhang or project into such street except 

 for architectural ornaments such as cornices or string courses and for such a maximum projection of 18 inches 

 (■457 metre) may be allowed. 



Any cornices or projections which overhang the ground of an adjoining proprietor shall be cut off Ijy the 

 owner thereof when required to enable such adjoining proprietor to build and failing his doing so may be cut off 

 by such adj(.>ining proprietor at the owner's expense. 



Diiiicnsiuns of external and party walls 



44. Every external and party wall shall lie built in accordance with the following tables, and in every case 

 the thickness prescribed shall be the minimum thickness of which any such wall may be constructed. 



T.4.BLE 



'A" 



Thickness of walls of domestic buildings when built in good sound hard bricks, 

 blocks of hard and incombustible substance. 



burnt or artificial, or other 



Provided always that if any storv exceeds in height 16 times the thickness prescribed for its walls, the 

 thickness of each external wall, and of'each party wall,'throughout that story will be increased to one-sixteenth 

 part of the height of the story, and the thickness" of each external wall and each party wall below that shall be 

 proportionately increased. 



