No_9_September_1968 — Page 6

Here's why

you can now specify aluminium windows that won't leak

in a 90 mph rainstorm

SEALAIR WINDOWS by KAWNEER

2

When storm winds blow, the air pressure inside a building is lower than that outside. This pressure differential is the direct cause of leakage through conventional windows. It siphons water through the weatherseals into the window frames and, ultimately, into the building.

projected,

All Kawneer Sealair windows vertically pivoted, top hinged and casement-- have three exclusive design features that elim- inate this problem completely. An integral drip section (1) directs rainwater away from a patented pressure equalisation slot (2), which keeps the air pressure inside the frame the same as the pressure outside. No pressure differential, so no leaks. And the continuous weatherstripping (3) is a permanent, physical barrier to both water and air.

Kawneer Sealair windows are thoroughly proven by installation on thousands of build- ings in many different countries overseas. They are engineered to standards that guaran- tee long, trouble-free service. And they can be supplied in the rich, warm, permanent colour tones achieved by Kawneer's Permanodic hard coat anodising process.

K.

Kawneer

YOUR AUTHORISED KAWNEER DEALER:

HONG KONG: Dreyer & Co. Ltd., P.O. Box 473. Cables 'Dreyco".

SINGAPORE: Aluminium Malaysia Ltd., 5th floor, 6 Robinson Road, 1. Cables 'Alumasia'.

BANGKOK: Building Materials Department, Diethelm & Co. Ltd., G.P.O. Box 14. Cables 'Diethelmco",

KAWNEER COMPANY PTY. LTD., a subsidiary of American Metal Climax, Inc, also in the United States of America, the U.K., Canada, Mexico, Jamaica and West Germany.

66 MANDOON ROAD, GIRRAWEEN, SYDNEY, N.S.W., AUSTRALIA. CABLES 'KAWNEER SYDNEY'.

Every Kawneer Sealair window exceeds

industry standards of weathering performance

This chart compares the water infiltration resistance of standard Sealair windows (determined by the static pressure chamber method in certified laboratory tests) with the A3 standards for Monumental Windows (for high rise buildings) from the American Standards Association and the Architectural Aluminum Manufac- turers' Association, USA. No leakage when tested under static pressure and constant flow of water for 15 minutes.

Selair

Industry standard

8 inch rain

20

PROJECTED

6 242 inch rain

WEATHER- MASTER vertically pivoted

double glazed with internal venetian blind

4 inch rain

20

6.24 2 inch rain

TOP- HINGED in-swinging

D

4 inch rain

6.242 inch rain

15

4 inch rain

15

CASEMENT

2.86 2 inch rain

10

Far East BUILDER, September 1968.