Warmup Insulation Boards

Warmup® insulation board is a water resistant, insulated tile backer board made of extruded polystyrene, faced on both sides with a fibreglass mesh embedded into a thin cement polymer mortar.

The board is designed to withstand a load of 30 tonnes per square metre and is ideal for use with underfloor heating as it prevents the heat from penetrating down into the substrate below.

As a wall tile backer board, tiles can be fixed directly onto the surface without prior preparation and, being totally waterproof, is suitable for bathrooms or showers.

In testing, heat-up time was cut from over 2 and a half hours to just 20 minutes. This data applies to Warmup heating products only.

Do I need Insulation Boards?

Many people wonder if it is worth insulating under floorboards and the answer is that yes, it definitely is. Insulation boards are ideal for use with electric underfloor heating as they prevent the heat from the heating system escaping downwards to the subfloor. The Warmup Insulation Boards do not let the heat pass through from the heater to the subfloor. Therefore the heat gets pushed upwards, onto the floor surface where you want the heat to go. It is recommended to always carry out a heat loss calculation if you are considering buying an electric underfloor heating system to understand how well your house is currently insulated and how big the heat loss is in your home.

Insulation boards always improve the efficiency of your underfloor heating system by allowing a quicker heat up time, when no heat is getting wasted by going downwards away from the floor surface.

TECHNICAL DATA – Insulation Boards
PRODUCT CODE INSBOARD6 INSBOARD(PK1) INSBOARD20 INSBOARD30 INSBOARD40 INSBOARD50
THICKNESS –  6 mm 10 mm 20 mm 30 mm 40 mm 50 mm
WIDTH – 600mm
LENGTH – 1250mm
AREA – m² 0.75
WEIGHT – kg (kg/m²) 2.2 (2.9) 2.3 (3.1) 2.5 (3.4) 2.8 (3.7) 3.0 (4.0) 3.2 (4.3)
THERMAL CONDUCTIVITY – W/mK 0.033
THERMAL RESISTANCE – m²K/W 0.12 0.24 0.55 0.85 1.15 1.45
COMPRESSIVE STRENGTH – kPa 300
BOND STRENGTH – kPa 220
SHEAR BOND STRENGTH – kPa 325
MAXIMUM TILE WEIGHT (for Walls) – kg/m² 60
THERMAL EXPANSION COEFFICIENT
(FOAM CORE ONLY) – mm/m per °C ≤0.07
WATER ABSORPTION
(2 DAY IMMERSION)(FOAM CORE ONLY) – % by volume ≤1.5
FIRE RATING – Euroclass E
OZONE DEPLETION POTENTIAL – ODP 0
GLOBAL WARMING POTENTIAL – GWP <5