Thermalboard Compared to
Radiant Gypsum Concrete Pour
Common Brand Names: Hacker Industries GYP-SPAN® Radiant, Maxxon Gyp-Crete Thermafloor
Pourable gypsum based cementitious material can be applied over tubing radiant stapled to a subfloor by licensed applicators.
Issues to Consider
- Gypsum applicators do not provide project design layout…Thermalboard does.
- Gypsum pours result in a high mass, slow responding system. People want heat sooner, rather than later. Thermalboard is fast responding.
- Gypsum applicators use the same big trucks required for large commercial jobs, resulting in higher costs for small to medium projects.
- A Gypsum pour surface cannot cost-effectively accommodate nailed hardwood. Thermalboard accommodates all floors goods easily.
- Heavy. A gypsum pour weights 12-14 lbs/sq/ft, often affecting joist sizing. Thermalboard weights 2 lbs/sq/ft.
- Double plating: An extra plate must be installed to accommodate the extra 1.5” of gypsum thickness. Cost issue. Possible height issue. Not required with Thermalboard.
This data is provided by the particular manufacture or from the Design Manual of Zurn Radiant, a leading manufacturer radiant tubing.
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