298 FARM BUILDINGS IN SOUTH AFEICA 



6" by 1£" queen posts; and 6" by 1\" struts as shown in drawing. 

 Trusses are to be spaced not more than 5 feet apart, and all members of 

 roof securely bolted together with ^-inch wrought-iron bolts and nuts 

 as shown. 



Hip rafters are to be 9" by 1£" ; and purlins, including hip purlins, 

 3" by 21". The ends of rafters are to be projected, shaped, and wrought, 

 as shown, and where necessary 6" by 1\" sprockets (shaped and wrought) 

 are to be provided to keep spacing equal. 



Ventilator at ridge is to be constructed with 3" by 3" verticals and 

 3" by 2" longitudinals, as shown, all securely spiked together. Louvered 

 ends are to be provided to the ridge ventilator as shown in drawings. 



Corrugated Iron to Roof. — Cover roof throughout with 24 gauge 

 galvanised corrugated iron as described, fixed with galvanised screws and 

 double washers spaced not more than 12 inches apart horizontally. 

 Perform all necessary bending and cutting as shown and required. Each 

 sheet is to have a side lap of two corrugations, and an end lap of 9 inches. 



Hips. — Cover all hips with 18" girth, galvanised iron ridging as 

 described, lapped 9 inches at ends, close beaten into corrugations, and 

 fixed with galvanised screws and double washers spaced not more than 

 12" apart. 



Windows. — Construct the windows with 4£" by 3" deal, wrought, 

 rebated, and arris rounded frames ; with 4£" by 3" deal, wrought, twice 

 rebated, and arris rounded mullions ; and 4£" by 3" hardwood, wrought, 

 rebated, check-throated, and sunk sill, grooved for water bar. 



Sashes to be of If" deal, wrought, rebated, and arris rounded; divided 

 for glazing as shown by l|-inch wrought, rebated and arris rounded bars; 

 with bottom rail rebated and splayed. Hang at bottom on a pair of stout 

 4" steel butt hinges, and fit with strong brass quadrant stay of approved 

 pattern with opening gear complete. 



Doors. — The doors to have 4£" by 3" deal, wrought, rebated, and 

 arris rounded frames. The doors themselves to be 2" deal, wrought, 

 framed, ledged, and braced; in two heights or leaves, with splayed 

 meeting rail, hung to open outwards on a pair to each half or leaf of 2" 

 by i" by 24" wrought-iron hook and band hinges, bolted to door and 

 frame with -§" wrought-iron bolts and nuts. 



Fit each half or leaf with strong 12" locking bar and staple, with 

 padlock and loose pin ; and provide staple, and pin on chain, built into 

 walling to hold doors back when open. 



