FAQs - Frequently asked questions

Can electric cables be channelled into Recticel insulation boards?

No, as this would reduce the performance of the boards. Cables can penetrate the insulation with no detriment to the cable sheathing. Any cables penetrating or lying against insulation should be oversized to cater for increased operating temperature. If in doubt, consult a qualified electrician.

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How should I store Recticel Insulation boards?

Our boards are supplied in polythene shrink wrap which is designed for short-term protection only. It is accepted that storing boards indoors is not always possible – when outdoor storage is necessary, boards should be stored clear of the ground, on a level surface, and under cover to protect them from prolonged exposure to moisture or mechanical damage.

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Is Eurothane PL available with a vapour control layer?

Recticel Insulation's Eurothane® PL is a versatile product that can be fixed either mechanically or with gypsum adhesive, in accordance with installation guidelines. It has a built-in vapour control layer as standard, located between the PIR core and the plasterboard.

What is the best way of achieving an air and vapour barrier when using Recticel PIR insulation panels?

As per the literature supplied with the product - an effective air and vapour barrier can be achieved by the taping of board joints using suitable insulation tape, the inclusion of a separate proprietary vapour control layer or the use of a foil backed plasterboard all of these methods are acceptable forms of air/vapour control.

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What is the difference between a U-value and an R-value?

U-values take into account all elements of a construction, including thermal bridges. They can only be worked out by calculation. The R-value, or thermal resistance, is a measure of the insulation board on its own, dividing the thickness (in metres) by the thermal conductivity (lambda value, W/m.K). The R-value can be used to compare how different thicknesses of products with different lambda values perform comparatively.

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What is the minimum working temperature for installing Recticel Insulation boards?

Recticel Insulation products should not be installed on site when the temperature is below 5°C. Below this, condensation may form.

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