Category Archives: leak investigation

leak investigation, Roof Inspections and Consulting

William Leys Waterproofing Consultants LLC Becomes a Member of the North American Building Compliance Testing Association (NABCTA) !

We’re the Central Coast’s Solution for Building Envelope Compliance Testing!

William Leys Waterproofing Consultants LLC is proud to announce that we have become members of the North American Building Compliance Testing Association (NABCTA) !

We’re constantly seeking to improve our skills, increase our knowledge and bring the Central Coast of California local expertise and professionalism.

If you need building envelope leak testing, litigation support on waterproofing defect claims or building envelope consulting, please reach out today! We provide ASTM E 1105 testing and full compliance reporting.

After a cyclic test, this recently repaired stucco wall was found to be leaking.
Another wall, another test proves that the stucco wall was improperly reassembled resulting in water intrusion into the building.
A spray rack is set up to test the walls and windows on a recently built medical building in Templeton CA

What is E 1105 you ask?

How the Testing Works

Water Spray: A calibrated outdoor spray rack applies water uniformly at a rate of 5.0 gallons per hour per square foot.Air Pressure: An interior or exterior chamber creates a controlled air-pressure difference to simulate wind pushing rain against the building.Observation: Inspectors watch the interior side of the test specimen to see if any water penetrates past the building envelope.

Testing Procedures

Procedure A (Uniform Static Pressure): Applies a steady, constant air pressure difference, usually for a 15-minute test period.

Procedure B (Cyclic Static Pressure): Cycles the air pressure on and off (e.g., 5 minutes on, 1 minute off) for multiple cycles to mimic gusting wind.

Why It Is Used

Quality Assurance: Verifies that field installation, flashing, and sealants were done correctly right after construction.

Forensic Investigation: Helps locate the source of active water leaks in existing buildings.

Quality assurance inspections can also help ensure that the building envelope is being installed correctly. We offer QA inspections for building owners during construction. Catch problems before the building is closed in.

If you are building new construction, get your windows and doors tested before closing in the building. Call today 805-801-2380

Deck Inspections, leak investigation

WLWC To Perform Tile Deck Leak Investigation on Santa Barbara Estate Home

We’re pleased to announce that we have been retained to perform an investigation on a leaking tiled deck on an estate property in Santa Barbara CA.

A deck at the home has had a history of leaks, leading to damage to ceiling finishes and walls below.

An estate home in Santa Barbara is the subject of our next leak investigation.

The property owner found us after doing a search for a deck waterproofing expert online. We’ll be investigating the leak with visual observations, borescope camera and moisture meters to determine the path of the leak back to its source(s) and write a report after examining the plans, specifications and drawings and comparing the as-built deck to the design intent.

With a history of being able to solve problems and determine responsibility as to what trade may be responsible, our latest client is confident in our abilities to help him recover damages from the appropriate trades that created the defect.

If your building is leaking, call William Leys Waterproofing Consultants LLC, the leak investigation experts in California at 805-801-2380.  Let’s discuss your situation and see how we can help you!

We diagnose the problem and then write a “prescription” to help make your 
leak problem go away!
leak investigation, Quality Assurance Observations

The Stucco Wall Repairs Looked Great, Until We Water Tested Them… And They Leaked!

  • Stucco Repairs Are Not Easy to Do
  • Lapping New Building Paper Correctly Under Existing Building Paper is Critical To Keeping The Building Dry
  • Hiring an Independent Quality Assurance Inspector Protects Everyone
  • William Leys Waterproofing Consultants LLC Offers Affordable Quality Assurance Inspections

Our last blog post talked about an owner who hired us to perform an inspection on their condo unit at a well known West Hollywood property. The condo had experienced water intrusion while the owner was away and they came home to find water on their bedroom floor.

Continue reading The Stucco Wall Repairs Looked Great, Until We Water Tested Them… And They Leaked! →
leak investigation

San Luis Obispo Contractor Selects William Leys Waterproofing Consultants LLC To Investigate Leaks at Santa Maria Medical Offices

We Will Be Investigating the Source of Water Intrusion on This Medical Center in Santa Maria

William Leys Waterproofing Consultants LLC is pleased to announce that we’ve been selected to investigate the source of water intrusion into a medical building in Santa Maria CA by a well respected local contractor.

The building has been subject to water intrusion over the last several years and is now ready to undergo repairs and upgrades to the facility. As a local consulting firm, William Leys Waterproofing Consultants LLC offers competitive pricing, building envelope expertise and 20 years of experience in the construction industry.

Continue reading San Luis Obispo Contractor Selects William Leys Waterproofing Consultants LLC To Investigate Leaks at Santa Maria Medical Offices →
leak investigation

Century City Condominium Retains William Leys Waterproofing Consultants LLC to Investigate Leaks

We’re pleased to announce that a landmark high rise in Century City (Los Angeles) has retained us to investigate leaks at several units that remodeled their decks into living space with storefront type windows enclosing the deck. The leaks occur during rain events accompanied by high winds.

Previous investigations identified what were thought to be several flaws in the window installation, however the repairs failed to remedy the problems as the leaks returned in the next storm.

Our experience and success in leak investigations helped convince the Board of Directors to retain us to investigate and recommend steps the Association can take make repairs after identifying the cause(s).

If your HOA is experiencing leaks from rain events and you need assistance to identify the cause reach out today for a free conversation about how we can help you! Call Bill Leys, the Deck Expert at 805-801-2380.

We aren’t quite superman as we can’t fly to the top of tall buildings, but our thermal imaging camera can “see” through walls and our moisture meter can detect moisture that ordinary mortals cannot!
leak investigation, Quality Assurance Observations, Roof Inspections and Consulting

Pesky Leak to Be Investigated By William Leys Waterproofing Consultants LLC’s Leak Investigation Sleuths

Where’s the leak? That’s why we were hired, to find a pesky leak that has evaded detection of its source for several years.

William Leys Waterproofing Consultants LLC has been retained to provide leak investigation services by a large builder of medical buildings in California. The pesky leak has caused several offices in the building to be vacated during the rainy season due to concerns over potential mold hazards, never a good thing for patients visiting the building.

We will be using a spray rack to water test the facade of the building in San Luis Obispo county this week. The facade features store front windows and a stone finish on the 4 year old building. Leaks can often hide in such situations and the building’s owners and its construction team that built the building hired us to assist in the leak investigation due to our history of expertise in leak investigations and building enclosure experience.

If your building is experiencing leaks, reach out to us to have a discussion on how we may be able to assist in determining the source and make recommendations for repairs. Our leak investigation experts are ready to assist! Call today 805-801-2380

While we were inspecting the roof, we found the roof drain sump pit clogged up with debris. We also found that the TPO roof has reverse laps that buck water flowing towards the drain.