Calculate your roof edge protection from your desk
For roofers, installers and estimators: draw your roof edge protection on the satellite image and instantly receive a parts list and quote — without an on-site survey.
Free to try — get started immediately, no appointment needed.
From address to quote in three steps
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Enter an address
The calculator takes you to the correct project location, displays the aerial photo and automatically determines the wind load zone per address (EN 1991-1-4).
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Select the location
Click on the satellite image to select the roofs that will be part of your project. You work from the actual geometry, not a sketch.
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Draw the sections
Use the drawing tool to mark where the roof edge protection goes. You instantly see the parts list — posts, railing sets and corners — and export the quote as PDF or Excel.
No measuring wheel, no roof visit, no guesswork
Why spend hours on the roof when the entire configuration is ready digitally in a few minutes?
Design from the aerial photo
Design the complete roof edge protection directly on the satellite image of the project — no site visit, no scaling errors.
Draw and count instantly
Draw the sections and immediately see how many posts, railing sets and corners you need. The parts list updates as you work.
Fast, safe and accurate
A complete ballast calculation in minutes instead of hours — straight from your desk, without sending anyone onto the roof.
Save time, reduce costs, lower the risk
- No physical roof inspection required
- Instant calculation of parts and ballast
- Wind load zone per address, per EN 1991-1-4
- Compatible with Dakregister and QR Workstart
- Saves time and costs on the estimate
Ballast to the standard — automatically
The calculator determines the wind load zone per address and calculates the corresponding ballast according to EN 1991-1-4 and the Dutch National Annex. That is the differentiator a remote estimate cannot offer: the correct load for this location, not a rule of thumb.
Read the occupational hygiene strategy →The calculator is a layout and ballast configurator, not a roof safety audit. The design is indicative; final dimensions and ballast are confirmed on delivery and installation.
What you have in hand within minutes
Complete design
The full roof edge protection, section by section on the satellite image.
Automatic parts list
Length, corners, posts, railing sets 4 m and 3 m, D-ends — counted as you draw.
Quote in PDF or Excel
Export the complete configuration as PDF or Excel and feed it directly into your estimate.
Ballast per wind zone
The required ballast for the wind load zone of the address, e.g. NL II 27 m/s.
No on-site survey, no risk
The entire calculation happens from your desk — no one needs to go on the roof to close the quote.
Good to know before you start
1What does it cost to use the calculator?
2Is the quote binding?
3How accurate is the measurement on the satellite image?
4Do I need an account?
5Does the calculator work on mobile?
6Which standard is used to determine the ballast?
7What happens to my project data?
Start calculating
Map your roof edge protection and work faster, safer and more accurately.