Many building projects are not well co-ordinated and roofing works are in fact time critical in terms of holding costs for scaffolding and delay to other trades that require protection from the weather such as interior fittings. In addition, owners will often request changes/variations to the scope of work and specification as work progresses and no price will be agreed in advance.
South Africa is a diverse country and one of the areas where this is transparent is in the various different building styles of our homes and properties. Each different building style will require a different roof structure, whether tiled, sink roof or straw, with its own set of requirements and obstacles.
Make sure your builder is knowledgeable about the specific roof required for your building work before you conclude the contract. The last thing you want is to start dispute proceedings due to a leaking roof after the first rains.