With so many details involved in building a new house or commercial space, choosing a roof style may not be high on your priority list. However, a good roof will greatly increase the value and comfort of your new building, and can also add to the curb appeal.
There are many different roof styles to choose from. When deciding which to use, three main factors to consider are ease of building, functionality, and appearance. Undoubtedly, flat roofs are probably the easiest type to build because you don't have to worry about constructing a pitch. However, flat roofs may start to sag or leak over time, especially if you live in an area that receives a lot of heavy snow in the winter. A gabled roof looks like an upside down "v" and although it is a bit harder to build, snow will slide off more easily. However, this type can sometimes be less stable in areas that are particularly windy. If aesthetics are most important to you, you may consider a butterfly or mansard roof; both of these look very nice, but are more complicated to build and often not as practical as alternatives. Recommended site for more details.
Ultimately, choosing a roof style may be more complicated than you initially thought. However, by prioritizing what factors are most important to you, it is not too difficult to find a style that will work for your project.