Risk first
Visible movement or sagging is assessed before cosmetic or waterproofing work is considered.
Sagging and structural roof problems
A sagging roof needs more than waterproofing
Deflection, movement, cracked members and changing roof lines may indicate a structural problem. Applying sealant or waterproofing without understanding that movement can hide risk and allow the failure to progress.
Cause and load path
Roof covering, purlins, trusses, beams, supports and alterations are considered together.
Defined repair
The repair scope is aligned with engineering input where the condition requires it.
Defined roofing scope
Structural roof investigation and repair
No two structural failures are identical. The first step is documenting the condition, movement, affected members and immediate risks.
Request an assessment- 01Visual roof-line and member assessment
- 02Sagging and deflection investigation
- 03Failed purlins, trusses or beams
- 04Connection and support problems
- 05Damage caused by alterations
- 06Temporary risk controls where required
- 07Engineered repair coordination
- 08Roof covering reinstatement
Practical roof advice
Do not hide movement beneath another layer
Recurring cracks and leaks may be symptoms of structural movement rather than waterproofing failure.
Unapproved alterations, added loads, corrosion, impact damage and failed connections can all change how a roof behaves.
Where engineering is required, the repair must follow a defined design. The goal is to restore safe performance, not simply improve appearance.
Useful answers
Before the inspection.
Is a sagging roof dangerous?
It can indicate structural distress. Keep people away from a visibly unstable area and arrange a competent assessment promptly.
Can you repair laminated beams or roof members?
The repair method depends on the material, damage and loading. Some repairs require an engineer's design before work proceeds.
Should we waterproof the area first?
Not if movement is causing the waterproofing failure. The structural cause should be understood before finishes are reinstated.
Start with the roof problem