Pergola Systems Guide: Which System Suits Which Need?
Pergola systems cover an outdoor area to provide shade and protection from the weather. In modern systems the roof is not fixed: on a bioclimatic pergola the louvres rotate, on a motorised pergola awning a three-layer PVC blackout cover retracts, and on a Rolling Roof moving panels are drawn back.
Two Questions First
Choosing a system starts with two questions: is it the roof or the sides that are to be closed? And in which period will the space be used? This article separates roof and glass systems by how they open.
Roof Systems
The three roof systems differ in how the roof opens:
- [Bioclimatic pergola](/en/bioclimatic-pergola): The roof louvres rotate on their own axis. As the louvre angle changes, light, shade and airflow are adjusted.
- [Motorised pergola awning](/en/motorized-pergola-awning): A three-layer waterproof PVC blackout roof cover opens and retracts by motor on tracks over an aluminium structure.
- [Rolling Roof](/en/rolling-roof): Moving roof panels are drawn back to open the roof. The direction of the panels and the area left open vary with the selected model.
For rain the same principle applies to all three: performance is planned together with slope, joints and drainage. On a motorised pergola awning, a waterproof cover material does not mean the installed roof is unconditionally watertight at every joint.
Glass Systems
For the sides there are three separate mechanisms:
- [Sliding glass](/en/sliding-glass): Panels slide sideways on a horizontal track and gather on it.
- [Folding glass](/en/folding-glass): Panels travel along the track and stack at the side.
- [Guillotine glass](/en/guillotine-glass): Panels move vertically and gather at the top or bottom depending on the model.
In none of them is the opening left completely clear; the clear area when open is shown in the design. If glass is not wanted, a zip screen gives shade and privacy.
Comparison
| System | What moves? | When open |
|---|---|---|
| Bioclimatic pergola | Louvres rotate | Louvres stay in place |
| Motorised pergola awning | PVC blackout cover retracts | Cover gathers at one edge |
| Rolling Roof | Panels are drawn back | Panels gather at one edge |
| Sliding glass | Panels slide horizontally | Gather on the track |
| Folding glass | Panels stack at the side | A stack of glass forms at the edge |
| Guillotine glass | Panels move vertically | Gather at the top or bottom |
Why Are There No Figures?
Wind and snow loads are calculated from the project dimensions and the installation site. Feasible dimensions are confirmed from your measurements and the structural design. A single figure in a general article would therefore mislead; the values that apply are shared in the quotation with the documents of the selected model.
Permits and Heating
Permit and notification requirements depend on the project and on local regulations. For heated use, the roof, glass, profiles, floor, airtightness and ventilation are assessed as a whole; if that is the aim, see the winter garden solution.
Conclusion
The right system is chosen by how you want the roof and the glass to open. To see them all side by side, visit the products page.