DISTINCTIVE BONDS 33 



In the case of the employment of a semi-skilled man, however, this 

 fact does not justify the acceptance of poorer work than he is capable of; 

 nor does it excuse any relaxation in the closeness of the supervision 

 exercised by the farmer, or person in charge of the work. 



While Colonial bond is weaker than English bond, it is quite satis- 

 factory for one-storey buildings, though this does not imply that it should 

 be used in all cases in preference to English bond, which is the stronger 

 when properly laid. For two-storey buildings, and even for one-storey 

 buildings which have to carry a heavy roof, English bond should be used, 

 as the Colonial bond has not a great enough weight-carrying capacity. 

 Walls which are called upou to support shafting should preferably be 

 built in English bond. 



For 9-inch walls both faces of which are unplastered Colonial bond 

 is employed, hence probably the origin of the name " garden " or " garden 

 wall " bond. The object in view is to reduce the number of headers, a 

 fair or plane face on each side of the wall being then easier of attainment, 

 because the transverse position of stretchers can be adjusted so as to keep 

 the two faces plane, but longer headers must project beyond shorter ones, 

 there being always some variation in the lengths of ordinary bricks. 



A modified type of garden bond is shown in the division walls 

 between the exercise yards in Fig. 147. In this case there are three 

 stretchers to one header, in each course. 



Flemish Bond. — Flemish bond is illustrated by Fig. 27, which shows 

 a 9-inch wall built in this bond. It will be seen that, unlike English 



bond in the case of a wall of 



this thickness, headers and ('(f f ^r ( r f \( \ C ^ 

 stretchers occur in each course. 



This bond is supposed to 



lend an effective appearance 



to the fronts of cottages, 



especially when the mortar 



joints are lined in with white _ 



J Fig. 27. 



paint. It is not so strong as English bond. 



Hoop Iron Bond (Fig. 28). — Hoop iron is frequently used for the 

 purpose of strengthening brick walls. The hoop iron is well tarred and 

 sanded and is then built into the wall at vertical intervals of 5 feet or 

 thereabouts. As a rule one strip of hoop iron is inserted for every half- 

 brick the wall is in thickness. Wherever possible, as for instance above 



D 



