How many roof types exist?

Which is the most recommended roof type?


In this post we explain the types of roofs and our professional recommendation.
In case you still do not know us, let us introduce ourselves.
We are ERA architects, one of the young, committed and creative architecture studios in Barcelona.
In this post you can find our professional, simple explanation on roof types.


What is a roof?
It is the top element of the building.


What are the types of roof?
We are able to classify the types of roof according to:

Simple or Composite

Flat or inclined (1 slope, 2 waters, 4 waters, broken or folded)

Passable or not passable

Traditional or Inverted

Natural Vegetables (straw, wood, cane, plants) or Minerals (gravel, earth, abode)
Artificial (slate tiles, ceramics, cement, metal panels, glass, rubber or plastic)


What is the most recommendable roof type?

It depends on location, climate and also on the program of the building and its integrated insertion in the environment.

Even so, in ERA architects we recommend the inverted flat roof combining practicable areas with low maintenance local pre-cultivated vegetation.

I imagine this will sound very complex for that reason we are going to develop this description a bit more:

Flat roof is the roof that with a minimum slope of 2-8% is able to stay waterproof and repel rain water to go inside.
Inverted roof means it has a thermal insulation layer that protects the waterproof textile. Therefore condensations, dilatation, cracks and aggression on the waterproof layer are minimized or eliminated. It is also better protected and its maintenance is more comfortable.
A practicable roof is a great idea to have a using terrace to make barbecue with friends.
A green roof has green areas with plants and vegetation. There are many types of green roof systems and types of vegetation to use.
Both of this last options need to be specified on an early stage of the project, so we can calculate the loads to design a proper structure.


In our Architecture studio in Barcelona ERA architects, our main goal is the total success of the project and the construction works. For this reason we recommend inverted flat roofs.

You may check out our online house editor CasaAPP to see prices and types of passive houses in 3D. Or download house editor APP in Google Play (only for Android tablets for now, sorry!).
(the WEB editor takes 3 minutes to load. You may not be able to load if you don’t have a powerful computer: so sorry, we are working to improve the APP)


Hope this post helps you!
You may also be interested in our other posts:

‘Passive Houses in Barcelona’

‘Efficient Houses in Barcelona’

‘Wood Houses in Barcelona’

‘Prefab Houses in Barcelona’

‘¿How long it takes to build a House in Barcelona?’

‘¿How much it costs to build a House in Barcelona?’


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See you on the next post!

Esther Rovira