What air gap is required between insulation and breather membrane?
This should be confirmed in the membrane manufacturer's BBA certificate, though 25mm to 50mm is typical.
What are the main tips for installing Recticel Insulation boards correctly?
- Use the right board for the application - the right type and the right format.
- Store the boards in a dry place above the ground, and use them when they are dry.
- Handle boards carefully - do not throw or kick them, be careful not to damage them.
- Ensure the intended substrate/base is clean, even, dry and smooth.
- Apply an air screen, sealing layer or damp resistant layer if necessary, particularly in flat roofs.
- Push boards together well.
- Always keep boards dry during rain showers.
- Always cover boards at the end of the working day.
- Always follow installation instructions provided.
- Always use the right attachment methods.
- Measure and cut accurately to fit using a fine toothed saw or sharp knife
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Ensure that any adhesive is compatible with the foam
What if I cannot provide all of the information required for thermal calculations of a specific project?
It is possible for us to make certain assumptions when performing a calculation, but this can reduce the accuracy of the final result. Assumptions are routinely made about the types of fixings to be used, but we will always try to inform you if a general figure has been used where more accurate data could affect the calculation result.
What is the BBA Competent Person Scheme?
The scheme, of which Recticel Insulation is a member, is designed to ensure consistency and accuracy in the provision of U-value calculations through a process of assessment, certification and continuous monitoring. Not all insulation manufacturers are members of the scheme.
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.
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.
What quality standards do Recticel Insulation products meet?
Recticel Insulation prides itself on the quality of its product, particularly its dimensional stability and flatness. We consider the quality of our boards to be second to none. Recticel operates a Quality Management System in accordance with the requirements of BS EN ISO 9001:2015 and offers CE Marking to 'ISO EN 13165 - Thermal insulation products for buildings - Factory made rigid polyurethane foam (PU) products - Specification'.
Where can I find Recticel's Declarations of Performance (DoP) to support CE Marking claims?
DoPs are a requirement of CE Marking. All products are required to have one, listing the essential characteristics and performance of the product as declared under the CE Marking standard. Recticel Insulation's DoPs can be found here.