Painting the exterior of your house becomes essential every 10-20 years depending on the climate of your city. If it is a sunny place then your exterior paint can work from 15 to 20 years, but if your city is stormy and snowy then the paint will survive much less. If you have a smaller one story house then you may probably do the work by yourself by taking help of a family member. But if it is a big house then to do the painting you will need some professional help.
Speaking about professional help you must consult an expert about the wide range of exterior paints. Then he will be able to suggest you a good option. Now most of them suggest using latex paints. Sherwin Williams Duration is a good choice for you. This paint may cost more than other exterior paints but it is always worthy. Again Sherwin Williams Super Paint is also a good option and having a lower price than the previous one. Benjamin Moore exterior paints are also very popular among the experts. And if you want a much lower price than the previous suggestion and a better paint then you can try MoorGlo and Moorlife paints which are easily available in market.
The above paints use the latex technology. This one is important because latex helps the paint to dry very quickly and as the paints are water based it becomes very easy to clean them. But if you have metal surface to paint then you should go for oil based paint because water based paint is mainly made for concrete surfaces. Before painting you must smooth the surface with sand paper. No traces of previous paint should be kept so that the surface can hold up the paint well. The work should be done with precision and it is good to take professional help so that you do not make a mess out of it.