Thermal Insulation Using Plastic Foam (Varmeisolering med Karbamidskumplast),
Abstract
Urea foam has in the past few years come into use for improving the thermal insulation in older buildings, as well as in new buildings with faulty insulation. A significant improvement of the insulation in these types of buildings is obtained by injection of plastic foam. The experience is so far rather limited in Sweden. The greatest advantage with this method is that no major re-work is required in the parts of the building which are insulated. Urea foam is manufactured from urea, formaldehyde, foaming agents and a hardener. Manufacture of slab or blocks can be performed in a factory, or the ingredients can be mixed at the construction site and be injected by means of special equipment, into the part of the structure which is to be insulated. The curing takes place inside the structure after the material has been injected. The final product is a thermo-setting plastic, which, among other things, means that its hardness is virtually independent of temperature. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADA027408
Entities
People
- A. Greatorex
- W. Tobiasson
Organizations
- Cold Regions Research and Engineering Laboratory