Do aluminium pergolas need structural calculations?
Yes. Aluminium pergolas, including louvered ones, need stamped calculations for the frame, roof, fixings and foundations, mainly for wind loads, before the developer NOC and any permit.
The short answer
Aluminium is light, which makes wind uplift and fixings especially important. The calculations check the profiles, the louvre or roof system, base plates and anchors, and the footing. Installers often supply standard systems, but the design still needs checking for your size and location.
What you need to know
- Profiles: Sized for span and wind.
- Louvres: Roof system loads.
- Fixings: Base plates and anchors into the slab or footing.
- Standard systems: Still checked for your size and site.
Documents you will need
- Title deed and owner ID
- Affection plan for the plot
- Developer NOC where the community has a developer
- Existing drawings or as-built plans
- Photos of the area
Who does what
Step by step
We confirm the exact route for your property.
| Step | Approval route | Guides |
|---|---|---|
| Design check Structural Solutions | Profiles, roof and fixings. | Aluminium pergola calculations |
| Developer NOC Developer | Approval of the pergola. | Pergola NOC |
| Sign-off Inspectors | Checked against the drawings. | — |
Questions
Related questions
Are louvered pergolas treated differently?
They need the same checks, including the louvre system.
Can the supplier's calculations be used?
They must be checked and stamped for your project.
Do I need a permit?
The developer NOC always; a permit depending on the pergola.
What fixings are checked?
Base plates, anchors and footings.
What does Structural Solutions do?
Our engineers prepare and stamp the calculations and drawings, and handle the NOC, permit and completion as approved consultant.
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