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Sealed Graylite lrok-sloint Lath-New Insulite Product

Creation of a triple-duty building material that serves as a plaster base, a rigid insulating material, and a barrier against vapor travel into stud spaces was announced last month by The Insulite Company, Minneapolis, Minn.

The new product, known as Sealed Graylite Lok-Joint Lath, was introduced by Insulite engineers as another forward step in the progress of structural insulation following more than a quarter century in the insulation field..

Improvement of the company's two other Lok-Joint Laths were combined to create the new product integrally treated with asphalt and backed by an asphalt barrier on the stud side.

The new Sealed lath is also made of the same material as Bildrite Sheathing, which is integrally water-proofed with asphalt, the new product serving as a rigid, structural, insulating plaster base.

It is provided in 18-by-48 inch panels with thicknesses of one inch, three-quarters-inch and half-inch. The oneinch thickness is composed of two half-inch panels sealed together with the asphalt vapor barrier between the two layers.

The Sealed Graylite Lok-Joint Lath, like the Ins-Lite Lok-Joint Lath and the Graylite Lok-Joint Lath of the Insulite line, has ship lap joints which provide the maximum of efficiency.in insulation and vapor control at the joint. The heavy galvanized metal Loks, which are built into the lath, force the operlapping edges together in a tight protective press.

As a plaster base, the lath is particularly effective since its wood fibre construction is designed to have twice the bond to plaster that wood lath has. The Lok-Joint Lath requires a heavy uniform plaster surface, keeps wet plaster from stud spaces, and eliminates lath marks.

In addition, its insulating pr-operties reduce loss of hea! thereby slashing the winter fuel costs and providing an economic advantage which home owners appreciate. Similarly, it protects the home against summer heat.

Principal additional objective of the new sealed lath is to retard vapor travel from hot to the cold stud spaces where it may condense and begin destructive action.

Double protection is provided with addition of Bildrite Sheathing on the cold side of the hous6 to draw out whatever moisture may accumulate in the stud places. The combination of these two structural insulating materials provides the Insulite line's "'Stop and Go for Vapor," in that most vapor is retarded and stopped inside the house by the Sealed lath, while whatever vapor escapes the vapor barrier is carefully dissipated through the Bildrite Sheathing to the outside air, completing the "Go" portion of "Vapor gets the Stop and Go with Insulite in Building."

Club No. 39 Meets in Oakland March 18

An illustrated talk by Rodney S. Ellsworth on a recent important fossil discovery recently made near Mount Diablo will be the main feature of the next dinner meeting of East Bay Hoo-Hoo Club No. 39 to be held at Hotel Learnington, Oakland, on Monday evening, March 18.

The second speaker will be Stuart N. Ward, member of the American Legion's State Defense Committee, who will talk on "Our New Trade Partner. Latin America, and Our Two-Ocean Navy."

Tom Branson, activities committee chairman, has arranged special entertainment.