ZONOLITE IND VERMICULITE 4
Grace Canada
#4-CF
Grace Zonolite? Masonry Insulation. Free-flowing, drainable vermiculite insulation specially treated for water repellency and used to insulate masonry wall cores and cavities. It also increases the fire resistance rating and Sound Transmission Classification (STC) of the wall system. It is lightweight, non-toxic and non-flammable.
ZONOLITE Masonry Insulation, available in 4 cf (0.11 m3) bags, is lightweight, free flowing, inorganic vermiculite, specially treated for water repellency. It has a dry loose weight density of 4.5 – 7.0 pcf (72 – 112 kg/m3), and is capable of supporting its own weight, so it will not settle. It is fire resistant, with a fusion point of approximately 2200°.
Where average interior relative humidity exceeds 50%, a vapor barrier is recommended on the exterior side of the interior wythe of the cavity wall or composite masonry wall system.
