Steel Roof Truss Replacement for Damaged Roof Systems

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Steel roof truss replacement means removing a damaged or corroded truss and installing a new custom-made steel frame that matches the original load and span. It is usually the right choice when rust, cracking or sagging has compromised the structure. A structural engineer should confirm the design before work begins.

When Replacing a Steel Roof Truss Is Necessary

Not every rusted truss needs to be replaced. Surface rust on a sound member can often be cleaned and protected. Replacement becomes necessary when the steel has lost significant cross-section, when joints have cracked or pulled apart, or when the roof shows visible sagging or movement.

Deep corrosion that has thinned the members
Cracked or failed welded connections
Visible sagging along the rafter line
Damage after water leaks or a partial collapse

If any of these signs appear, have the structure inspected before the next rainy season.

Assessing the Existing Structure

Before replacing anything, the damaged roof needs a careful review. Our team visits the site, photographs each truss, and measures spans, spacing and member sizes. Where original drawings are missing, the existing profiles are recorded so the replacement matches the original geometry.

The structural engineer reviews the loads the roof must carry, including roofing material, equipment and local wind and snow conditions. This review determines the section sizes and connection details for the new steel.

Designing a Custom Replacement Truss

Each replacement is designed to measure rather than taken from a catalog. Based on the site measurements and the engineer's calculations, we prepare a drawing and a written specification showing member profiles, connection points, bearing details and finish.

The drawing is sent to you for approval before production starts. This step prevents surprises during installation and ensures the new truss fits the existing walls, beams and openings.

Manufacturing and Finishing in Our Factory

Production takes place in our factory at 37 Rival Street, Tel Aviv, where we have been working in steel since 1945. Members are cut, drilled and welded to the approved drawing, then checked against the dimensions before leaving the workshop.

For long service life in a damp or coastal climate, the steel is protected with hot-dip galvanizing or powder coating. The right finish depends on exposure and the look you need.

Installation and Site Safety

Installation requires careful sequencing. Temporary support is placed before the damaged truss is removed, so the remaining roof structure stays stable throughout. Lifting, positioning and bolting are coordinated with the contractor and the site supervisor.

Temporary shoring installed first
Old truss removed in a planned order
New truss lifted, aligned and fixed
Connections checked before loads are restored

Coordinating With Contractors and Engineers

Many roof replacements involve a general contractor, an architect and a structural engineer. We share drawings and specifications with all of them so that the steel, the masonry and the roofing work together. Clear communication at the start reduces rework and delays on site.

Whether you are a private homeowner or a building committee, we explain each step in plain language so every decision is informed.

Frequently asked questions

How do I know if my steel roof truss needs replacement?

Replacement is usually needed when corrosion has thinned the steel, connections have cracked, or the roof shows visible sagging. A site inspection by a qualified person is the best way to decide.

Can a damaged truss be repaired instead of replaced?

Light surface rust on sound steel can often be cleaned and coated. Heavily corroded members or failed joints generally call for replacement, and the engineer will advise on the right approach.

Do you make the replacement to the original dimensions?

Yes, we measure the existing structure on site and design the new truss to match its spans and connection points. The engineer confirms that the design meets the loads the roof must carry.

Do you handle the installation as well?

We manufacture the custom steel in our Tel Aviv factory and coordinate the installation, including temporary support while the old truss is removed. We work closely with your contractor throughout.

Common mistakes to avoid

Waiting until a roof visibly sags before inspecting is a common and costly error. Replacing a truss without temporary support or an engineer's design can also put people and the rest of the roof at serious risk.

Our recommendation

Have the roof inspected at the first sign of rust bleeding, cracked welds or ceiling stains, and insist on a written design before fabrication starts. Specifying hot-dip galvanizing for exposed steel usually pays off in longer service life.

Summary

Steel roof truss replacement restores a damaged roof with a custom-designed, properly protected steel frame. Inspection, engineering and careful installation are the keys to a safe, lasting result.

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