ABSTRACT
This chapter deals with the prevention of frost damage to brickwork, but makes reference to preventing damage during hot, dry weather. Preparations for winter building should be made well in advance, and equipment and materials procured ready for use. Brickwork can be protected from wind by heavy gauge, reinforced polythene sheeting secured to the scaffolding; proprietary systems are available. Cements set more slowly at lower temperatures. If mortars freeze before the set is complete, their ultimate adhesion, strength and durability will be reduced, and the brickwork may have to be rebuilt. One of the best ways of assessing the standard of bricklayers is to examine the accuracy and neatness of their cutting of bricks. If a weather struck finish is required, all cross joints must be inset the same side, usually the left-hand side, by both right and left-handed bricklayers. The absorption of the bricks and weather conditions will determine the timing.
