Polyurethane Advantage
updated 12 Apr 2011
Polyurethane structural foam (PUR) which is what Ecohousing
use, should not be confused with the inferior expanded polystyrene foam
(EPS).
Expanded polystyrene foam (EPS) not only posses a fire risk but is also targeted by vermin and insects. It has been found in roof panels which ants have eaten holes in the core weakening the roof panel. It will also melt when exposed to a hydrocarbon (fuel, insect spray etc.)
This will not happen to polyurethane. See our vermin resistance PDF
Click on page 2 to read more on the advantages of using Polyurethane
Expanded polystyrene foam (EPS) not only posses a fire risk but is also targeted by vermin and insects. It has been found in roof panels which ants have eaten holes in the core weakening the roof panel. It will also melt when exposed to a hydrocarbon (fuel, insect spray etc.)
This will not happen to polyurethane. See our vermin resistance PDF
Click on page 2 to read more on the advantages of using Polyurethane
Polyurethane structural foam is the space-age insulation used in
passenger jetliners for the past 55 years, making it possible for aircraft to
fly at great heights and in temperatures in excess of minus 50 degrees
centigrade.
It is inert and has a closed cell homogenous structure that is fire retarded with no oxygen to carry flames, retaining its insulation values throughout its life, which to date has been checked at ages greater than 50 years without deterioration or delimitation. It is used in domestic refrigerators where the freezer section is normally at minus 22ºC, of course our insulation section is much thicker in our wall, roof and floor panels, giving exceptionally high insulation values.
It is inert and has a closed cell homogenous structure that is fire retarded with no oxygen to carry flames, retaining its insulation values throughout its life, which to date has been checked at ages greater than 50 years without deterioration or delimitation. It is used in domestic refrigerators where the freezer section is normally at minus 22ºC, of course our insulation section is much thicker in our wall, roof and floor panels, giving exceptionally high insulation values.
Polyurethane Core between fibre cement in a
wall panel
Polyurethane core exposed in single faced
panel,
note core is hard to deform