Click on the links below to view the specifications. You can right click and 'save target as' or left click as normal but a broadband connection would be preferable. You will need the Adobe Acrobat Reader to view the sheets.

Domestic Sprayfoam specification :: colour brochure
Agricultural / Commercial specification :: colour brochure
Cavity Injection specification :: colour brochure
Pirthane Class 0 specification :: colour brochure
Ecofil40 SOLAS approved marine injection foam :: colour brochure

Closed and open cell foam, what's the difference?

Closed Cell Polyurethane Foam

The image on the left shows closed cell polyurethane foam (which Websters Insulation use). It is called ‘closed cell’ because the ‘windows’ are shut, making the foam very water resistant and an excellent thermal insulator.

Gas is trapped in the closed cells, giving the foam an R-value of around 7.14 per inch and uses high R-value blowing agents. The density range is between 9 to 15 kg per cubic metre.

 

 

 

Open Cell Polyurethane Foam

The image on the left shows open cell polyurethane foam (which Websters Insulation do not use). It is called ‘open cell’ because the ‘windows’ are left open, offering no resistance to water intake and offering very little thermal insulation properties.

As the cells are open, the foam feels spongy to the touch, offering no stability unlike closed cell, which offers excellent stabilisation qualities. Open cell foam, while being slightly cheaper, offers no benefits whatsoever other than slight sound reduction if used in cavity voids.