Calculation of metal purlins with diaphragm effect (sheeting)

ENGINEERING AND DESIGN

Structural calculation

Calculation of Z, C, ∑ purlins.

Schemplan Design (Pre-project)

Calculation of joints

IFC project and rendering

Executive Project

3D IFC Model for Assembly

Fire Resistance Analysis

The calculation of steel purlins allows no room for error.

A failure here compromises the entire stability of the structure.

At Jansa Metal, we design and calculate Z, C and Sigma (∑) type metal purlins applying the diaphragm effect (sheeting), improving the overall rigidity of roofs and façades.

We calculate purlins optimized to withstand wind, snow, accidental loads, and deformations, ensuring a structural behavior that is safe, efficient, and durable. We reduce risks, optimize materials, and increase the service life of the structure.

👉 Are you looking for a reliable technical calculation for your steel purlins?

CONTACT US NOW

Why choose Jansa Metal:

Because we combine engineering, experience, and common sense.
With over 35 years in the steel structure sector, we know what works on site and what doesn’t.

These are our strengths:

Specialized calculation with sheeting effect.

We master all types of purlins: Z, C, and Sigma (Σ).

Design adapted to the reality of each project.

Technical rigor with a practical vision.

How do we do it?

Our Step-by-Step Method

At Jansa Metal, the calculation of steel purlins is a professional service with a technical process validated by years of experience.

Initial Technical Study: We review the type of structure, roofing, expected loads, and regulatory requirements.
Selection of the Optimal Profile (Z, C, or Sigma): Based on geometry, overlaps, spans, and client needs, we select the most suitable profile type.
Structural Calculation with Sheeting Effect: We integrate the effect of the cladding and the rigidity of the connections to optimize the behavior of the purlin as part of the structural system.
Technical Report and Recommendations: We deliver drawings, calculations, and construction recommendations. Everything is prepared for fabrication and assembly without surprises.
Request your personalized structural calculation now >>

“There are details that cannot be left to chance. At Jansa Metal, every structural calculation is done with millimeter precision. And even though steel purlins aren’t always seen, they are key: they distribute the roof load and keep the entire structure firm. That’s why we don’t improvise. We perform a rigorous study, because we know that strength starts from within.”

FAQ’s

Ready for the First Step? Contact us!

Every great project starts with a conversation. Contact us, and find out how we can bring your idea to reality, with metal structures that are as solid as your expectations.

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