When it comes to going green, few things in your home are going to make more difference than your roof. Your roof is what will look after your home and prevent heat from escaping (bear in mind that heat rises) or rain getting in, and it is also what will decide just how much space there is to heat, where you can fit your insulation and more. The roof itself is also a vast contraption that uses materials in its construction and of course if you are constantly having to repair it then this not going to help you go green much either.
So choosing your roof wisely is important, and specifically one of the most important aspects to consider is whether you want to go with a flat roof or a sloped roof. Here we will look at which is the best option for going green and how to make that decision.
Of course when going green and considering your roof there is no clear cut answer – the answer is going to be affected by your circumstances including the climate where you live and how you are going to be using your roof.
In terms of the actual construction and the materials used, a flat roof is the most efficient option for going green. This is because it uses the fewest materials in the most efficient way with just a single flat surface going across the top of your building. As you need to build a sloped roof up as well as across this makes it more difficult to achieve the same thing with the same amount of material. If you have a very large property then a flat roof is particularly important for going green as it will enable you to cover the whole area without having to build upwards. This then is why so many businesses and commercial properties have flat roofs. This is also great for absorbing heat if you are in a sunny country/state where you will find that the large surface area is great for absorbing heat and you will find that in many countries where it rarely rains and is generally warm, flat roofing is used.
However what you also need to bear in mind is how efficient this is at keeping the water off as well and that is then where sloped roofing comes into its own. The roof tiles used in sloped roofing are designed specifically to direct water down and off of them and this is with the help of gravity. This is important from a going green perspective because it means you won’t get water collecting on your roof. If you do get water collecting on your roof this would otherwise steal the building’s heat energy in order to try to evaporate and this would in turn mean your building was more difficult to heat. It might also result in mold appearing in your property and even leaks. Not only will these be bad for going green in terms of your heating bills, but they would also require repairing and that means more materials and energy used.
Sloped roofs are also preferable in terms of the insulation and with the large loft space that comes with sloped roofing you have more space to pack in insulation and thereby prevent heat from escaping from your home.