Masonry Magazine January 1975 Page.21
MAKING MASONRY WALLS MORE EFFICIENT
NO. 4 IN A SERIES
The loose-fill cavity wall insulation that outperforms all other mineral fills!
It's Permalite Silicone-Treated Perlite Masonry Fill, and it's available now!
Permalite® Silicone-Treated Perlite Masonry Fill stays dry for the life of the building because the inorganic perlite particles are coated and waterproofed with non-flammable silicone water repellent. It is your most effective barrier against penetration of moisture across the wall-offers most protection against moisture soak-up and water bridging in event of leaking walls.
Perlite provides 20% better insulation than any other popular mineral- type loose fill, reducing heat transmission by 54% or more and saving cooling and heating dollars that soon exceed its cost.
It doubles two-hour fire rated concrete masonry unit construction to four hours.
It pours in directly from the bag and is so free-flowing it fills all voids without bridging. It is self-leveling-won't settle or pack, and offers complete freedom from rot, termites and vermin.
Permalite Silicone-Treated Perlite Masonry Fill is manufactured from perlite ore mined by GREFCO, Inc., by licensed Permalite franchisees throughout the United States and Canada in conformance to Perlite Institute specifications. Write for specification data and the name of your nearest franchisee who can supply your needs NOW.
*k factor of 0.38 as published in ASHRAE Handbook of Fundamentals.
Permalite Silicone-Treated Perlite Masonry Fill is ideal: For Concrete Masonry Unit Construction
For Veneer Wall Systems
For Cavity Wall Systems
MAKE YOUR OWN INSULATION TEST
Put some Silicone-Treated Perlite Masonry Fill in a jar with water. (Your Permalite franchisee will gladly supply it.) Let it stand 6 hours, 6 days or 6 years. Shake it as hard as you can. The Perlite Masonry Fill stays dry! Laboratory tests prove perlite is five times more water- repellent than the next best mineral fill material!
SILICONE- TREATED
PERMALITE Perlite Masonry Fill
THINK OF IT AS AN ENERGY SAVER!
Permalite -the world's leading perlite.
GREFCO, Inc./Building Products Division 3450 Wilshire Blvd., Los Angeles, CA. 90010
Gregdiary of General Refractories Company