Masonry Magazine December 1963 Page. 21
Develop New School Concept
A novel, organic school demonstrating creative use of masonry wall construction was recently designed by Chicago architect, Stanley Tigerman, on commission by the Zonolite Division of W. R. Grace & Co.
The building is one of a series of five appearing in Zonolite ads in architectural magazines to promote masonry construction and masonry insulation.
Concerning the brick cavity school building, which contains grades one through six plus kindergarten, architect Tigerman explains, "The classrooms are arranged in clusters surrounding a focal point multi-purpose room."
The clusters range in size from twenty feet square to thirty-two feet square. Each is self sufficient with its own toilet and locker facilities. Every classroom has through ventilation and is focused upon a semi-private study court for outdoor individual classes.
By virtue of the cluster technique, an attempt is made at expanding the scale of a student's relationship from an individual classroom to a chronological category of two or three grades at a time, in combination with teaching and special classes.
Ceiling heights are based on the dimensions of the rooms, with a basic 1:2 vertical to horizontal ratio.
The Zonolite series also features an office building of cavity wall construction and a motel, factory and shopping center of lightweight block construction. Architect Tigerman is a principal in the architectural firm of Tigerman and Koglin.
The school was engineered by Norman Migdal, Chicago consulting engineer.
The value of water-repellent vermiculite insulation is also cited in the ads. For instance, the initial cost of the building is reduced in two respects by filling the cavities with this product.
First, the interior surfaces of the walls can remain unfinished, because conventional insulation on the inside is not necessary for comfort. And second, the cost of the heating plant can be reduced to a certain degree because a smaller heating plant can be used.
In computing the heat transmission loss of the building, Migdal was able to determine that the addition of vermiculite wall insulation produced a 17.6 per cent annual fuel savings.
Using uniform temperature and design conditions, Migdal computed the heat transmission loss through the windows and roof at 318,000 Btu's per hour. Ventilation and infiltration loss was 678,000 Btu's per hour. Loss through wall area consisting of 4 inch face brick, 2½ inch air space, and 4 inch brick amounted to 395,000 Btu's per hour, for a total of 1,391,000 for the entire building.
However, when vermiculite insulation is added to the 2½ inch cavity, heat transmission loss of Btu's per hour through the wall is reduced from 395,000 to 149,000, resulting in a reduction of 17.6 per cent of 1,145,000 Btu's per hour for the building.
Translated into dollars and cents, savings amount to $600.00 per year, permitting cost of the insulation to be paid off in less than two and one-half years.
Comfort is also increased to a considerable degree with the insulation. Although interior temperatures in this case are maintained at 70 degrees, high surface temperatures of the interior walls reduce the radiant heat exchange, taking the "chill" out of the rooms.
Two attractive booklets, one featuring the brick cavity designs, and the other displaying the block buildings, will be available from the Zonolite Division, W. R. Grace & Co., 135 South LaSalle Street, Chicago 3, Illinois.
CONRY
December, 1963
Raise Up to 1000 lbs. 160 ft. in 60 Seconds
Wheelbarrows full of mortar or concrete, pallets of masonry block or bricks, tools and many other building materials can be raised quickly and safely on the new Aeroil 1000 lb. Monorail Hoist.
Can be broken down into three parts for easy hoisting to the work area and ease of assembly.
Load is raised, pulled in and deposited on the deck by the hoist.
Write for Bulletin HO-1 for detailed information and prices.
AEROIL PRODUCTS COMPANY
69 Wesley St.,
South Hackensack N.J.
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