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Last Updated: Thursday, March 28th, 2013, Created: Friday, October 15th, 1999

LOOSE FILL POURED: POLYSTYRENE BEADS

Colour: White


Thermal Resistance: RSI - .020/mm R - 2.8/in. Fair


Cost: Low


Capacity to dry out if wet: Good


Fire Resistance: Poor


Fungus / Vermin Resistance: Fair


Limitations:
-- Highly flammable.
-- Very light and difficult to keep from blowing around during and after installation.
-- Highly susceptible to static electricity and hence difficult to fill cavities. Working on humid days will help.
-- Difficult to locate supply -- often sold as packing material, not insulation. Should be 5 mm (1/4 in.) diameter beads.


Advantages:
-- Pours easily and cleanly.


Applications:
-- Filling concrete block cavities.


 

Keywords: Insulation, R-Value, Types

Article 804