Why Hygrothermix Exists
Hygrothermix was founded on a simple observation: the objective of an under-slab moisture control system is not to maximize vapor retarder performance—it is to achieve predictable long-term slab moisture results.
That distinction changed everything.
For decades, under-slab moisture protection has largely been driven by prescriptive product specifications such as vapor retarder thickness and permeance. While these properties can be relevant, they are only individual components of a much larger hygrothermal system. Blindly chasing the lowest permeance number without scientific backing is wasteful and costly. The long-term moisture condition of a concrete slab is ultimately governed by the interaction of groundwater, soil characteristics, capillary breaks, thermal conditions, insulation, vapor retarder properties, concrete properties, floor coverings, and building operation.
Hygrothermix was created to engineer that entire system.
Drawing on decades of experience in building science, materials engineering, manufacturing, ASTM standards development, and advanced hygrothermal modeling, we help architects, engineers, owners, and contractors understand how these variables work together to influence slab moisture performance for decades after construction. Rather than relying solely on conservative prescriptive specifications, we use predictive engineering to optimize under-slab assemblies for the unique conditions of each project.
Our engineering led directly to the development of the SlabTECK® family of vapor retarders, tapes, and sealants.
Instead of designing products to maximize individual performance metrics, we designed them to perform as components of an engineered moisture control system. The result is a product line that delivers the durability, moisture protection, and installation reliability demanded by commercial construction while avoiding unnecessary complexity and cost. Every SlabTECK product exists because it contributes to a better-performing system—not because it achieves a “better” number on a specification sheet.
Beyond manufacturing, Hygrothermix provides project-specific design consulting, predictive hygrothermal modeling, specification assistance, preconstruction planning, installation support, and long-term performance evaluation. By combining engineering, manufacturing, and field experience, we help project teams make informed decisions before construction begins—reducing uncertainty, improving constructability, and delivering predictable slab moisture performance throughout the life of the building.
At Hygrothermix, we don't simply manufacture vapor retarders. We engineer predictable slab moisture outcomes.
by Hygrothermix
With the SlabTECK family of underslab products, you don’t have to guess if your moisture protection is adequate — you’ll know. Our below-slab membranes are engineered using advanced building science physics and state-of-the-art hygrothermal modeling to predict performance throughout a building’s lifecycle. That means we can provide project-specific slab RH values to protect floor coverings, prevent mold and mildew, and mitigate reinforcing bar corrosion.
Unlike competitors who resell generic accessories, we design and/or manufacture our own tapes and sealants, sourcing raw materials directly for higher quality and lower cost. Our team is comprised of manufacturers, converters, adhesive chemists, ASTM committee members (E1745 & E1643), installation experts, patent-producing inventors, and product developers. All of our adhesives are chemistry matched with our films for superior adhesion and performance.
SlabTECK is supported on every project with design assistance, pre-slab meetings, real-time technical assistance, construction shop drawings, digital/in-person installation reviews, and predictive performance modeling to ensure that each system is installed correctly and performs as designed. From science to slab, SlabTECK systerms deliver a smarter, safer, and more cost-effective approach to concrete slab vapor protection.
Core Differentiators
Performance Modeling
Advanced hygrothermal simulations provide lifecycle RH profiles, eliminating guesswork.
Value-Engineered Solutions
Product solutions focused on slab RH control and lifecycle performance, not arbitrary thickness & perm values and specifications.
Vertically Integrated Accessories
In-house designed and manufactured tapes and sealants deliver better adhesion, system compatibility, and lower cost.
Expert Team
End-To-End Support
Project planning services, pre-slab meetings, real-time field guidance, shop drawings, digital/onsite installation reviews, and as-built hygrothermal predictive modeling of future slab moisture performance.
Adhesive chemists, converters / manufacturers, ASTM committee members, patent-producing innovators, and installation experts at your service.