Structural calculationPrice on requestWhat is assessed?
A roof terrace receives a load of people, floor finishing, possible planters and fencing. The structural engineer assesses the existing roof structure and the new load.
In addition to the load-bearing capacity, waterproofing, slope and drainage deserve attention. Heavy planters and local loads must be specifically taken into account in the design.
What data is needed?
The following information can be used to prepare the assessment. The structural engineer determines whether additional research is necessary.
- Drawings of the existing roof
- Desired layout and floor structure
- Position of fencing and planters
- Material and weight data
What do you receive?
Record the exact delivery in the quotation. Depending on your project and assignment, this involves:
- Assessment of the roof
- Calculation of possible reinforcements
- Principles for fencing attachments within the assignment
Discuss who will take care of the architectural development, supplier details and any temporary support. In this way, the components involved are coordinated.
Materials and drawings
The choice of materials and connections follow from the design. Read more about Anchors and connections and the difference between a architectural drawing and a construction drawing.
How does the process proceed?
You describe your project and share the available data. The assignment, any additional information and planning are then coordinated. Check it out complete step-by-step plan for all phases.
What does your assignment cover?
A roof used as a terrace has a different use scenario. Show finishes, access, guardrails and any planters on one drawing. Ask whether local loads and guardrail fixings are included in the assignment.
Can I already order material?
Order structural parts based on the coordinated and current design data. A preliminary estimate is not a complete basis for this.
Is a site visit necessary?
That depends on the project and the available information. Sometimes drawings and photos are sufficient for the inventory; sometimes an admission or additional examination is necessary.
What happens if my plan changes?
Report changes before they are implemented. The structural engineer assesses whether calculations and drawings need to be adjusted.
From data to a detailed plan
Checklist for your application
| Given | What you prepare |
|---|---|
| Drawings of the existing roof | Gather the most recent available data and identify what is missing. |
| Desired layout and floor structure | Gather the most recent available data and identify what is missing. |
| Position of fencing and planters | Gather the most recent available data and identify what is missing. |
| Material and weight data | Gather the most recent available data and identify what is missing. |
- Describe your complete construction plan.
A roof that becomes accessible takes on a different function. Have load-bearing capacity, structure and mountings assessed together.
- Discuss missing data.
The structural engineer determines which site survey or additional information is required for the agreed assessment.
- Record order and delivery.
Agree on the calculated parts, drawings, price and planning.
- Coordinate the design with the construction work.
Use the current documents and have relevant changes reviewed before they are implemented.
Frequently asked questions about roof terrace
Can every flat roof become a roof terrace?
An accessible roof has a different use and often a different structure. People, flooring, fencing and planters must be taken along. The existing roof construction and connections are assessed for that new situation; a waterproof roof is not automatically suitable as a terrace.
Should planters be listed separately?
Yes, localized heavy components may act differently on the roof than an evenly distributed load. Provide position, dimensions and relevant weights, including contents under the intended conditions. Reconcile subsequent format changes.
Related structural topics
Your project location
Provide the building address and share available drawings and photographs. Discuss whether a site survey is needed and which travel or investigation costs form part of the commission.