Loft Spray Foam

Loft insulation and loft conversion

Loft conversions are a great way to expand your home and increase its value, so ensuring that it is properly insulated is essential.  The limiting U value required for roof is 0.20W /m². What you can do if you have a roof room and you need insulation?


The first step is to decide whether to insulate a pitched roof at ceiling or rafter level. Don’t forget that insulating the roof means that the loft becomes a heated space, a good loft conversion: it’s a worthwhile endeavour.

Is it better to insulate internally or externally?

The eternal question. In case of lofts, though the optimal insulation would be external to avoid thermal bridges, the internal insulation turns out to be easier to install. Normally, this option restricts the height of the room in a space that is usually already somewhat restricted, but with polyurethane you only need 180mm of rigid foam (300mm of mineral wool).Loft insulation

Polyurethane Systems: insulation and more

The polyurethane systems are, in fact, the bests solutions for a loft conversion. You will obtain a good thermal insulation, also you will avoid problems of condensation.

A lack of adequate insulation can result in significant condensation and damp problems. Condensation is particularly likely if the loft incorporates an area where a significant level of moisture will be created, like a bathroom or kitchen area.

The conclusion: a optimal insulation for the best confort

If you are planning to make use of the roof space in your home to create a loft, you must make sure it is insulated to the standard required by the latest edition of the statutory Building Regulations. Using polyurethane systems for insulation is the best way to converting an existing roof, or creating habitable attic rooms.


Interested in Synthesia Internacional’s polyurethane systems? You can contact us for more information or download the catalogue of systems:

Catalogue: Spray foam machine solutions