For arbors gazebos pavilions pergolas and trellises.
Roofs built with wood.
Green roof garage design.
Until the later 19th century such supporting frameworks were made of wooden beams sometimes in highly complicated systems.
If you choose a sloping roof for the garage paint the walls white and the roof in a darker shade like chocolate brown blue or green.
For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow.
Problems can arise if air is allowed to move but not freely.
A combination roof is quite literally a combination of types of roofs.
Garage roofs can be arched sloping or flat depending on your taste and aptitude.
If there is an open area around the garage you can opt for a wooden garage roof as well.
This creates the potential for condensation due to the gaps in temperature.
A continuous curved arch that forms a timber frame roof for a pergola adds interest as well as drawing the eye upwards giving the perception of a grandeur scaled structure.
If too much condensation builds up it can cause the wood to rot away especially with an outdoor shed.
Steel and reinforced concrete have for the most part replaced such heavy wooden support systems and such materials moreover have enabled the development of new and dramatic roof forms.
The type of truss you build will be suited for different weights which may help you determine the exterior materials you use.