TagSIRRPP(46)
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2025-02-26StART SIRRPP Update: Interior DNL Eligibility Threshold and Acoustic Testing Results — Slide 14 (February 26, 2025)
Slide 14 of a presentation on acoustic testing for a Sea-Tac Airport noise insulation program, explaining that interior DNL (calculated as Exterior DNL minus Noise Level Reduction) is the eligibility metric, with a threshold of 45dB DNL. All 30 homes tested fell below the FAA's 45dB DNL interior noise threshold, including five Pre-1993 homes evaluated under the FAA re-insulation program. -
2025-02-26StART SIRRPP Update — Acoustic Testing Overview and Results, Slide 13 (February 26, 2025)
Slide 13 of a presentation titled 'Acoustic Testing Overview and Results' shows two field photographs: an exterior loudspeaker on a tripod set up in front of a residential house, and an interior shot of a technician using a measurement microphone on a pole inside a kitchen. The setup depicts standard residential sound transmission testing methodology. -
2025-02-26StART SIRRPP Update — Acoustic Testing Procedures and DNL Metrics — Slide 12 (February 26, 2025)
This slide from a Seattle-Tacoma International Airport (SEA) noise remedy presentation summarizes acoustic testing procedures, stating that testing followed the FAA-approved 2017 Acoustic Testing Plan (ATP). Key metrics cited include a 70dB DNL exterior noise contour threshold within the 2014 SEA Noise Remedy Boundary and a 27dB Noise Level Reduction (NLR) example calculated from interior and façade measurements. -
2025-02-26StART SIRRPP Update — Field Assessment: Window Installation and Maintenance Issues (Slide 11, February 26, 2025)
A presentation slide (page 11) summarizing field assessment findings related to window installation and maintenance issues, including screws at sill bottoms promoting water damage, caulked-over weepholes, and design factors affecting longevity and repairability. Specific concerns noted include non-removeable storm panels on fixed picture windows and inability to clean windows with moving sashes. -
2025-02-10Sound Insulation Repair and Replacement Pilot Program Assessment Update
The Port of Seattle launched a Sound Insulation Repair and Replacement Pilot Program to assess the effectiveness of previously installed noise insulation packages in homes near Seattle-Tacoma International Airport. Authorized under Commission Order 2024-04 with a $6.5 million tax levy-funded budget—$5 million of which is reserved for design and construction—the program involved community outreach, property owner surveys, and acoustic testing throughout 2024. Properties were prioritized using an equity index to ensure underserved communities were considered, with design and construction work expected to begin in 2025. -
Sound Insulation Repair and Replacement Pilot Program
The Sound Insulation Repair and Replacement Pilot Program was granted approval by the Port of Seattle Commission on February 27, 2024. This pilot program is to help assess products that were previously installed as part of the Sound Insulation Program and evaluate the current condition of those installations. The assessment was completed in December 2024. -
2025-01-01Seattle-Tacoma International Airport Sound Insulation Repair and Replacement Pilot Program: Assessment Technical Report
★ 32This January 2025 technical report, prepared by Environmental Science Associates for the Port of Seattle, documents a pilot program assessing the condition and effectiveness of sound insulation previously installed in homes near Seattle-Tacoma International Airport. The report covers resident surveys, research into the expected useful life of sound insulation building materials, acoustic testing methods, and test results from selected homes. It aims to inform future decisions about repairing or replacing aging noise-reduction treatments in affected neighborhoods. -
2024-11-12Here’s what we’re doing to address failing ‘Port packages’ near Sea-Tac
By Fred Felleman and Hamdi Mohamed Special to The Seattle Times The Seattle Tacoma International Airport is the nation’s fastest-growing airport of its size with over 400,000 flights carrying 50.8 million passengers in 2023. As a result, it continues to undergo extensive renovations that create jobs to build and operate the new facilities. Less obvious -
2024-06-09Port Package Update Survey: more questions than answers
Including only a third of the homes is not the half of it As we’ve been reporting, the Port Package Update program, now called the Sound Insulation Repair/Replacement Pilot Program has had pitfalls at every turn. The most obvious concern we had is that the survey was sent to 3,200 homes, which is only a -
2024-05-28Let’s fix the program to fix Port Packages!
May 28, 2024 Public Comment to the Port of Seattle Commission on SIRRPP Commissioners, I think it’s fair to say that when we all worked so hard last winter to create a Port Package Update program–now formally known as the Sound Insulation Repair/Replacement Pilot Program (SIRRPP), stakeholders such as our over 1,000 members assumed we’d