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Waterproofing News

Terra-Petra Receives 2023 Los Angeles Award For Environmental Engineering

LOS ANGELES December 5, 2023 — Terra-Petra Environmental Engineering has been selected for the 2023 Los Angeles Award in the Environmental Engineering category by the Los Angeles Award Program.  This is the 11th year in a row that Terra-Petra has received this honor. Each year, the Los Angeles Award Program identifies companies that we believe

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Waterproofing Concrete: Crack Size Matters, Crack Bridging Capacity

In concrete, there are voids and cracks that waterproofing systems must compress against to be functional. This is relevant, particularly regarding poorly consolidated substrates which is inherent to shotcrete.  Swellable membranes such as Bentonite often do not achieve the 24 lbs. of compression per square foot required to achieve watertight functionality, when installed in conjunction

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Terra-Petra Building Waterproofing crew checking for leaks.

Water Testing Results: What Do Successful Projects Have in Common?

The Terra-Petra Waterproofing Division conducted water testing in Culver City that resulted in a first-time pass. By Barry Taheri, Terra-Petra Forensic Waterproofing Consultant Q: What does a first-time pass in water testing demonstrate? A: It demonstrates the team can execute the detailing and workmanship of the materials required to build a watertight assembly without having

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Terra-Petra’s Forensic Waterproofing Expert, Barry Taheri,

Terra-Petra Forensic Waterproofing Expert Holds 17th Lunch & Learn

Terra-Petra’s Forensic Waterproofing Expert, Barry Taheri, recently presented his 17th lunch and learn program for architecture, planning, and conservation firm, Architectural Resources Group, on June 16, 2021. ARG’s projects encompass some of the West Coast’s most iconic buildings and sites, such as the rehabilitation of the Alcatraz Quartermaster Warehouse in San Francisco and renovation of the

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Terra-Petra Waterproofing – Building Envelope Consulting Los Angeles

Terra-Petra is currently providing building envelope weatherproofing consulting services to a multinational asset management and development firm at their development in Los Angeles CA. The project will consist of the construction of a new 6-story, 30,274 SF multifamily apartment building consisting of five levels of type III-A over one level of Type I-A. The building

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Building Envelope Consulting – Los Angeles, CA

Terra-Petra is currently providing building envelope weatherproofing consulting services to a multinational asset management and development firm at their development in Los Angeles CA. The project will consist of the construction of a new 7-story, 60-unit residential building with a common area at the roof. It will include a subterranean parking level with a semi-automated

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IIBEC Technical Advisory No. 018-2019 (updated 2021) Electronic Leak Detection

Re-post from iibec.orgTITLE: Electronic Leak Detection DESIGNATION: IIBEC-TA-018-2019 (updated 2021) OBJECTIVE: To provide information on the methods and qualifications for electronic leak detection testing used for installed roofing and waterproofing systems.DISCLAIMER: This Technical Advisory is intended to serve only as a general resource and to identify potential issues for consideration by industry professionals. Each person

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Terra-Petra Waterproofing Expert Hosts 16th Lunch & Learn

Terra-Petra’s Forensic Waterproofing Expert, Barry Taheri, presented his latest Lunch & Learn presentation for the global architecture, planning, and design firm, Cannon Design, on May 6, 2021. Barry presented the material remotely, and by all accounts, it was well-received with regard to the virtual design. In his presentation, “The Principles of Building Enclosure Systems,” Taheri provided

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Forensic Water Intrusion Testing – Los Angeles, CA

Terra-Petra’s waterproofing division has been engaged by a leading Southern California contractor to conduct a forensic assessment of historic water intrusion issues for an existing building near LAX. Unfortunately, we are not at liberty to discuss the project in detail, or disclose our client’s name as we are bound by an NDA, but we can

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Terra-Petra Providing Waterproofing Services for New Project In West Hollywood

Terra-Petra is thrilled to have been a part of this fabulous project being finished off in West Hollywood, The Pendry Hotel. Terra-Petra served as the Quality Assurance/Quality Control Waterproofing Inspectors throughout the entire construction process. We are also in the process of completing the QA/QC Fenestration Testing at the Residence in compliance with the project’s

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