PURPOSE BARNS 



barns. The only good point in favor of the bank barn is 

 warmth. Warm basements with good walls may be secured 

 by building in a sheltered spot or by having a bank not over 

 four feet high on one side. Window space should never be 

 sacrificed for a bank barn. 



A wide wall of stone cuts off much light and if used at 

 all it should be cut at an angle of 45 degrees from the inner 

 edge of the window. 



The amount of lighting surface required in a barn is 

 four square feet of window glass to each animal, or one 

 square foot of glass for 20 square feet of floor space. The 

 amount of direct sunlight entering through any window 

 will depend on the length of the window, rather than on 

 the width, the length of the overhanging eaves and the 

 thickness of the wall. The long dimensions of all windows 

 for barns should be up and down. 



It is a mistake to jDUt windows in a barn with the long 

 dimensions horizontal. Up and down windows admit the 

 sunlight further into the barn. This arrangement decreases 

 the amount of sunlight cut out by the ordinary i8-inch stone 

 wall. 



The direction in which the barn stands has much to do 

 with the amount of direct sunlight that enters it. In north- 

 ern latitudes, if the barn stands east and west, direct sunlight 

 enters only through the south, east and west windows, and 

 only indirect sunlight on the north. A barn standing north 

 and south receives direct sunlight on both of the longest 

 dimensions each day, or on the east and west, as well as on 

 the south side, and indirect on the north side. In southern 

 latitudes much direct sunlight will come in at north win- 

 dows. As far as possible, buildings should be lighted from 

 the south in the middle northern latitudes, as the maximum 

 amount of direct sunlight may thus be obtained, by either 

 an east and west or north and south arrangement, provided 

 windows are not obstructed in either position. The barn 

 should be placed with long dimensions north and south if a 

 bridge or bank is to be built to the second floor. A barn 

 standing north and south is generally cooler in the summer 

 time as the prevailing winds from the south and southwest 

 create a draft through the barn. In the winter time there is 

 very little difference as far as temperature is concerned. 



Seven 



