Floortherm

Floortherm MP is a versatile micro perforated insulating membrane that can be used in many types of ground floor construction. A polythene membrane with a foil coating to one or both faces, Floortherm MP insulates by creating low emissive air spaces. It is reinforced with a nylon net, providing added strength and preventing the membrane from tearing.

The micro perforations allow any water vapour to dissipate through the membrane and also allow timber joists to ‘breathe’. This means that Floortherm MP can be used in timber floor constructions without detriment to the joists. A cost effective solution, Floortherm MP is significantly cheaper than the equivalent PUR, PIR and Phenolic board insulations providing the same thermal performance.

Floortherm MP has excellent environmental credentials. It has a Global Warming Potential of Zero and an Ozone Depletion Potential of Zero. No CFCs, HFCs or HCFCs are used in the production of Floortherm MP.

Product Specifications

Roll Size  1.5m x 50m
Thickness  < 1mm
Foil emissivity  0.05
 
Global Warming Potential  Less than 5
Ozone Depletion Potential  Zero
Resistance of bubble/foil  0.10m2∙K/W
 
Resistance of 25mm un-ventilated void  0.80m2∙K/W
Resistance of 50mm un-ventilated void  1.32m2∙K/W
Resistance of 25mm ventilated void  1.07m2∙K/W
Water Vapour Resistance  1.5MN∙s/g

U Values

Breathable Product

Breathable Product

Cost-effective Solution

Cost-effective Solution

Easy Installation

Easy Installation

Global Warming Potential less than 5

Global Warming Potential less than 5

Newbuild

Newbuild

Ozone Depletion Potential Zero

Ozone Depletion Potential Zero

Refurb

Refurb

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Main Applicaitons

Timber Floors

In new build applications or where the structural floor deck is being replaced Floortherm MP can be draped over the joists, creating Low Emissive air spaces above and below the membrane. Top Hat Clips are available to recess the Floortherm over the joists and create minimum 25mm or 50mm Low E air spaces. Where the existing structural deck is being retained Floortherm MP can be laid over this deck and battens used to create a floating floor with a Low Emissive air space above the membrane. Alternatively, the battens can be laid first and the Floortherm fitted over them. This allows Top Hat clips to be used to position the membrane in the centre of the air space providing a better thermal performance.

Solid Floors

Floortherm MP can be laid over a solid floor and a battened floating floor used to create a Low Emissive air space above the membrane. Alternatively, the battens can be laid first and the Floortherm fitted over them. This allows Top Hat clips to be used to position the membrane in the centre of the air space giving a better thermal performance.

Beam & Block Floors

In a new build Beam & Block floor construction the Floortherm MP is installed over the whole floor area suspended from the inner leaf of the external wall below beam level. The membrane is held in place using Floortherm Clips. While it can achieve U-values of 0.25W/m2K on its own, the addition of Floortherm MP can also significantly reduce the amount rigid insulation required to achieve very low U-values in this type of construction. In many cases 1 brick course can be saved from construction depths providing very significant cost savings.