CORNICE 



2 37 



English practice is as follows: Rain-water or down-pipes should 

 have a bore or internal area of at least one square inch for every 60 

 square feet of roof surface in temperate climates* and about 35 

 square feet in tropical climates. They should be placea not more 

 than 20 feet apart, and should have gutters not less in vvdth than 

 twice the diameter of the pipe. 



The practice among American architects is to provide about one 

 square inch of conductor area for each 75 square feet of roof surface ; 

 no conductor less than 2 inches in diameter being used in any case. 



Cornice. There are many methods of finishing the gables and 

 eaves of buildings. A gable finish for a steel end, and for a brick end 



Hoof 5fee/ C/mch 



Roof 5 reef - - C/inch R/ nf A 



-/& Wa// 



Gable Finish for Steel End Gable Finish with Brick Wall 



FIG. 119. 



Flashed Finish 

 FIG. 120. 



