Tag Archives: roof consultant

Quality Assurance Observations

A Roofing Contractor Messes Up, William Leys Waterproofing Consultants LLC Helps Client Get It Fixed

A Low Slope Roof Installation Went Awry When The Contractor Deviated From The Manufacturers Installation Instructions

William Leys Waterproofing Consultants LLC Steps in to Assist The Building Owner Get the Work Corrected

A recent consult job that we had for a client who just had a new low slope roof installed on their building showed the reason that building owners should consider hiring a quality assurance inspector to ensure that the roof is installed right the first time and doesn’t have to be done over.

A client reached out to us who just had a new roof installed on their building. They had concerns about the workmanship and requested our assistance to inspect the job and document the problems with the installation. A low slope roof with a single ply TPO membrane had multiple issues with the installation.

Improper Termination of Membrane at Skylight
Improper Termination of Membrane at Door Threshold
Improper Weld is Open
Numerous Low Spots From Improper Slope on Roof
Improper Termination of Membrane at Roof To Wall
Improper Termination of Membrane Into Roof Drain
Vent Boot Not Caulked or Clamped

As you can see from the photo gallery we found  numerous problems with the installation. We wrote a detailed report for the client who then was able to go to the contractor and ask them to make corrections to their work. The city building department refused to sign off on the permit for the roof because of the poor workmanship and the client threatened to complain to the Contractors State License Board if the contractor did not step up and replace and repair his poor work.

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Roof Inspections and Consulting

William Leys Waterproofing Consultants LLC Performs Roof Inspections of 110,000 SQ Foot Low Slope Roof on a Commercial Building in Los Angeles

We were recently retained to perform an evaluation of a large low slope roof on a manufacturing building in Los Angeles.

The seam is splitting where it overlaps one sheet to another.

The client is interested in installing solar panels on the roof and needed to know what the buildings roof condition was, and whether they should repair or replace the roof.

For a very reasonable fee we performed a visual inspection and wrote a report for the client.

Samples of roofing to examine.

Some of our findings were that the existing roof system was splitting at seams, that multiple unsuccessful repair attempts actually were making leaks worse, and that the numerous sunlights were starting to deteriorate and would need to be replaced in the near future.

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