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Abstract
A large number of long term tests on sandwich panels comprising thermal insulation of foamed polyurethane of 30-40 kg/m3 density and different thicknesses, and different facing layers such as glasss fiber reinforced polyester, plasterboard, chipboard, wood fiberboard, asfaboard, plywood and steel sheething demonstrate that the very good thermal insulation properties of foamed polyurethane, apparent thermal conductivity in the different tests are not changed over a period of time. Test loading of wall and floor panels has shown that these panels can easily be constructed in such a way as to satisfy code requirements relating to loadbearing capacity and limitation of deformations, for instance in single family houses. Fire tests show that the insdie facing layer is critical with regard to the fire resistance of the construction. A wall panel comprising a loadbearing timber frame 110mm thermal insulation of foamed polyurethane and an inside facing layer of 15mm glass fiber reinforced plasterboard resisted a standard fire in conformity with ISO 834 for 35 minutes without failure in the wall subjected to a compressive force. There was no rise in temperature at all on the side remote from the fire. Evolution of smoke was of limited extent
A large number of long term tests on sandwich panels comprising thermal insulation of foamed polyurethane of 30-40 kg/m3 density and different thicknesses, and different facing layers such as glasss fiber reinforced polyester, plasterboard, chipboard, wood fiberboard, asfaboard, plywood and steel sheething demonstrate that the very good thermal insulation properties of foamed polyurethane, apparent thermal conductivity in the different tests are not changed over a period of time. Test loading of wall and floor panels has shown that these panels can easily be constructed in such a way as to satisfy code requirements relating to loadbearing capacity and limitation of deformations, for instance in single family houses. Fire tests show that the insdie facing layer is critical with regard to the fire resistance of the construction. A wall panel comprising a loadbearing timber frame 110mm thermal insulation of foamed polyurethane and an inside facing layer of 15mm glass fiber reinforced plasterboard resisted a standard fire in conformity with ISO 834 for 35 minutes without failure in the wall subjected to a compressive force. There was no rise in temperature at all on the side remote from the fire. Evolution of smoke was of limited extent
Date
12/1979
12/1979
Author(s)
Lars Larsson
Lars Larsson
Page(s)
638-650
638-650
Keyword(s)
sandwich panels; SPF; sprayed polyurethane foam insulation; thermal conductivity; thermal performance
sandwich panels; SPF; sprayed polyurethane foam insulation; thermal conductivity; thermal performance