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Roof & Waterproofing Investigation

A roof or waterproofing system that’s leaking, ponding, or aging past its expected service life needs more than a patch. Investigating why the system is failing determines whether a repair, partial replacement, or full replacement is the right call. This goes beyond a standard roof inspection — we test and document why the system is failing, not just that it is.

Roof with damaged and missing shingles exposing wood decking beneath

Common signs

  • Ceiling stains below roof areas
  • Ponding water on flat or low-slope roofs
  • Visible membrane cracking or blistering
  • Deck or balcony surface failures
  • Recurring leaks after patch repairs
  • Granule loss or surface deterioration

Potential causes

  • Membrane or material failure
  • Flashing and penetration detail failures
  • Ponding from inadequate slope or drainage
  • Improper installation
  • Age and weathering beyond service life
  • Foot traffic or mechanical damage

What we test and document

  • Roof and waterproofing system survey
  • Infrared thermography (moisture scan)
  • Core sampling where appropriate
  • Slope and drainage evaluation
  • Photographic condition documentation

What you receive

A written report on the condition and performance of the roof or waterproofing system, with findings on cause and recommended next steps.

Investigator vs. contractor

A contractor is often right when the source of a problem is already known. An independent investigation is worth it when the source isn’t clear, a previous repair didn’t work, or you need documentation you can rely on before spending money on repairs.


Common questions

How do you find moisture trapped under a roof membrane?

Infrared thermography and moisture meters can identify wet insulation or substrate beneath many roofing systems without full removal.

Is a leak always a sign of full roof failure?

No — many leaks are localized and repairable. An investigation determines whether the issue is isolated or systemic.

Can you evaluate a deck or balcony waterproofing system the same way?

Yes — decks and balconies are waterproofing systems and are investigated using similar methods.

Is this different from a standard roof inspection?

Yes. A roof inspection is typically a visual walkthrough. Our investigation adds infrared thermography, core sampling where appropriate, and written documentation of the actual cause.


Local considerations

Prolonged winter rainfall and coastal fog cycles put sustained moisture load on Central Coast roofing and waterproofing systems.