Insulation
Boards
Water resistant
insulated tile backer
boards
Made of waterproof
extruded polystyrene,
faced on both sides
with a fiberglass mesh
embedded into a thin cement polymer mortar
Can be used as a structural tile backer board in the floor
Withstands a load of 5,735 lbs per square foot
Ideal for use with underfloor heating as they push the heat into
the room, by not
allowing heat to penetrate down into the concrete substrate below
Tiles can be fixed directly on to the surface without prior preparation
Totally waterproof - ideal for use in bathrooms or showers
Acts as a very efficient thermal barrier
Reflects the heat upward into the floor tile instead of allowing
heat to warm up
the concrete slab below
Unaffected by the freeze/thaw cycle![]()
Easy to cut with a knife
Installs to any surface and is ready for thinnest and tiles
| Insulation Boards | |
|---|---|
| Size | 2' x 4' x 3/8" (600mm x 1250mm x 10mm) |
| Weight | 5 lbs. |
| Thermal resistance R-Value | 1.53 h ft² °F (0.28 m.K/W, SI units) |
| Density | 2.247 lb/ft³ |
| Compressive strength | 42.67 lb/in² |
| Water Absorption (capillary) | Nil |
| Flammability | B1/O |
| Reduction of sound pressure level | 21dB |
Warmup has several products. Only selected products are featured here. For information on additional Warmup products please check Warmup's website or request information from ESA.
Ph: 206-574-0092 * Fax: 206-575-0674 * repesa@repesa.com

