Separate shading from a rain roof
Open shade slats do not provide the same function as a weather-cover system. Specify sunlight, intended use and required protection, then coordinate material, weight, drainage and support with the project engineer. Adding a cover to an existing pergola can change loads and wind behaviour and needs review before installation.
Compare the design options
Use these options to discuss the configuration that fits the room and its intended use. Review dimensions and details against the actual material and hardware selected in the drawing.
Wooden pergola roof options — decision worksheet
Scroll horizontally to see all columns.
| Option | When to consider it | What to check |
|---|---|---|
| Open slats | Partial shading with airflow. | Sun direction, spacing and expected rain penetration. |
| Specified compatible cover | Protection using a defined material and system. | Support, joints, drainage and material requirements. |
| Partial cover | A shaded or protected area within a larger space. | Cover termination and water discharge location. |
Details to send before quotation
Include clear site photos and any available drawings, then clarify the points below. This makes the quotation scope easier to review and helps identify changes before production approval.
- Provide the pergola location, photos and exposure directions.
- State whether the aim is shading or rain protection.
- Review loads, fixing and any permissions with the responsible specialists.
- Define gutters, drainage and lighting within the scope.
Installation and handover checks
Review structure and fixing with the project engineer, then inspect joints, cover terminations and drainage. Test the specified protection system as agreed and retain maintenance instructions.
| Item | What to clarify |
|---|---|
| Project file | Location, floor, site photos and dimensioned drawings with a revision date. |
| Quotation scope | Identify manufacture, delivery, lifting, installation and work requiring another contractor. |
| Approval | Agree the finish sample, production drawing and item schedule; record changes to price or timing. |
Common questions
Is a wooden pergola automatically rainproof?
No. That depends on the cover system, joints, falls and drainage. Define the required protection before choosing and pricing the arrangement.
