---
title: "TB S60 over L1"
url: https://stacklist.com/card/c7bde17b-66d9-4cb8-a2a5-48321d1a8b84
stack: https://stacklist.com/c/business/stack/d8d3daba-6824-4624-82aa-4167e4c268d3
summary: "TB S60 over L1 confirms that Formulated Materials' Elevation S60 waterproof membrane is compatible with L1 Seamless substrate for elevated wood-framed structures like decks and balconies. Proper installation requires thorough cleaning of L1 Seamless before applying S60 according to technical data sheet directions."
tags: "waterproofing, elevation-s60, l1-seamless, membrane, substrate, installation, compatibility"
key_entities: "Formulated Materials (organization), Elevation S60 (technology), L1 Seamless (technology), L Flash (technology), waterproof membrane (concept), elevated wood-framed structures (concept)"
classification: "memo"
content_hash: "sha256:adec923d86af27fe6600e44a01bf68ec6ceb726f8bc0cb65d0bfbafac87c439f"
acp_version: "0.2"
token_counts_approximate: 368
visibility: public
agent_accessible: true
status: "final"
---

# TB S60 over L1

Technical Bulletin (S60 Over L1) 
This memorandum clarifies the compatibility of Formulated Materials’ Elevation S60 
waterproof membrane with L1 Seamless in professional-grade waterproofing
applications for elevated wood-framed structures, including decks, balconies, and
breezeways. 
Following internal evaluation and field performance reviews, L1 Seamless is
confirmed to be a suitable substrate for installing Elevation S60 once cleaned and
free of all debris . Elevation S60 may be applied over L Flash in full- or partial-
coverage applications , depending on the project's specific waterproofing needs. The
membrane will bond effectively and perform as intended in both application
scenarios. 
This combination provides installers with flexibility while maintaining system
integrity and long-term performance. To ensure proper adhesion and durability, L1
Seamless must be thoroughly cleaned of dust, dirt, or contaminants before
applying S60 . 
After cleaning, Elevation S60 should be installed according to the directions listed
on the technical data sheet, which can be found at formulatedmaterials.com or 
formulated.info . 
Any customers or field personnel with questions about this product pairing or
specific installation scenarios should contact our Technical Support as soon as
possible. Early consultation ensures project success and helps resolve questions
before they impact field performance. 
Thank you for your attention to this matter. 
Warm Regards,