Elevator Pit Waterproofing in Bel Air Using TREMproof 250GC
Substrate Preparation and Membrane Installation
Membrane Protection and Project Completion
Before backfilling began, we installed Polyguard Polyflow drainage board over the waterproofing membrane to protect the system during backfilling and help manage water around the below-grade structure. The drainage board was secured at the top with a termination bar, and all terminations, transitions, and waterproofing details were checked before backfilling. The completed waterproofing system was then inspected to verify proper membrane coverage and detailing. At Surfacing And Waterproofing, we believe long-term waterproofing performance depends on proper installation, protection, and attention to detail.
Do elevator pits need to be waterproofed?
Elevator pits are constructed below grade, making them vulnerable to water intrusion from the surrounding structure and soil. Waterproofing is especially important because once the elevator equipment is installed and construction is completed, access to the exterior of the pit becomes extremely limited.
What is the best material for waterproofing an elevator pit?
The appropriate waterproofing material depends on the construction method, substrate, site conditions, and whether the system is installed before or after the concrete is placed. For this Bel Air elevator pit, TREMproof 250GC was used as the elastomeric waterproofing membrane, with Polyguard Polyflow drainage board installed over it for protection and drainage.
Why is a drainage board installed over an elevator pit waterproofing membrane in Bel Air ?
The drainage board helps protect the waterproofing membrane from abrasion and displacement during backfilling while providing a drainage path for water around the below-grade structure. It also separates the waterproofing membrane from direct contact with the surrounding soil.
Planning a custom project in Bel Air?
Contact Surfacing And Waterproofing to discuss your project, request a detailed proposal, or submit your plans and specifications for review. Call (323) 508-4033 or email [email protected] to get started.