Ne* Blanket lnsulation Presented bv Masonite

Chicago, Nov. 2O.-Addition of a new product-Cell-UBlanket-to the Masonite line has been announced here by R. G. Wallace, vice-president and general manager of Masonite Corporation, manufacturer of Presdwoods, Quarterboards, and structural insulation boards.

The core of the Masonite Cell-U-Blanket is a continuous piece of Cellufoam, a unique cellulose fibre material that is flexible, feather-light, extremely porous, and highly efficient for thermal and acoustical insulation. Although Cellufoam weighs only lfu pounds per cubic foot, it is sufficiently rigid to support its own weight and, therefore, Masonite Cell-U-Blanket will not sag or settle.

Cell-U-Blanket is designed primarily for application to studs, joists, or rafters spaced 16 inches on center. It is available in two thicknesses, tf-inch and l-inch. Each of these sizes is offered in two types of coverings, thus actually providing four varieties of blanket insulation. A roll of the thicker blanket will cover 125 square feet of surface area, the other 250 square feet.

Special flanges are designed to permit Cell-U-Blanket to be set back five-eighths of an inch from the face of the studs, providing an air space of five-eighths of an inch between the Cell-U-Blanket and the interior wall finish.

The blanket can be applied quickly with staples, nails, or tacks, and it is easy to cut with shears.

In Cell-U-Blanket, durable, waterproof, asphalt-impregnated coverings incase the core. One side also is moistureproofed wittr a coating of asphalt, which supplies a positive vapor barrier toward the inside of the building.

In Silver Sheen Cell-U-Blanket, the vapor barrier is augmented by a non-metallic reflective insulation.

Development of Cell-U-Blanket follows the purchase last year by Masonite of the patent rights, trademarks, E&chinery, and other assets of Cellufoam Corporation of New Jersey and Cellufoam Corporation, a Delaware comPany. For several years, the New Jersey Corporation, operating under patent licenses granted by the Delaware company, manufactured Cellufoam here in a plant at 6565 South La Vergne Avenue. In recent years, Cellufoam has attained

In thir photogrrcrph, the 0crngles bv which wide use as a thermal insulating agent in refrigerating equipment, railroad cars, airplanes, automobiles, trucks, and buses and for covering pipes and air-conditioning ducts.

Since the Cellufoam plant, which is leased from the Clearing Industrial District of Chicago, was taken over by Masonite more than $100,000 has been expended to provide additional floor space and new machinery-

The principal raw material used in the manufacture of the core of Cell-U-Blanket is lvood fibre. In the manufacturing process, this cellulose fibre and water are mixed in a beater, such as is used in the making of paper. Chemicals are added, including mould, termite, and water proofing agents. Then the mixture passes into mechanical agitators which, by violent whirling, create millions of air bubbles in the material. The mixture is flowed on the screen of a Fourdrinier machine, where it forms into a sheet oI wet lap of desired thickness. Although this sheet contains an infinite number of air cells, it is sufficiently stable to transfer to drying machines without loss of form. Cellufoam emerges from the dryers as a flexible board-

.By presenting it in blanket form, Masonite now adapts Cellufoam to convenient and highly efficient use in the blanket insulation field. Cell'U-Blanket is being marketed through established lumber dealer outlets.