Interlock Roofing's metal roofs are durable due to their four-sided interlocking design that protects from weather. They come in various aesthetic designs to match any house. Interlock Roofing products are coated with Alunar and DuPont's Teflon Surface Protector for greater protection. Teflon was accidentally discovered in 1938 by Dr. Roy Plunkett at DuPont, emerging as a powder with slippery properties useful for manufacturing. It became well-known for non-stick cookware, which attaches to pans through indenting and spraying coats of decreasing stickiness. Plunkett received honors for his revolutionary invention, and DuPont continues benefiting from and celebrating uses of Teflon.

1. The History of Teflon, by Interlock
Roofing

2. The metal roofs from Interlock Roofing Ltd. are one of the
best in the industry due to its four-sided interlocking
design. This strengthens the roof and protects it from
harsh weather conditions all throughout the year. Available
in shingle, tile, shake, and slate designs, Interlock Roofing
roofs match the look of any house. Concerned with both
aesthetics and functionality, Interlock Roofing products are
coated with Alunar, embedded with the DuPont Teflon
Surface Protector, which offers greater protection and
durability.

3. Dr. Roy J. Plunkett discovered Teflon in April of 1938. A
scientist with DuPont's Jackson Laboratory in New Jersey,
Plunkett studied Freon refrigerants. One day, he noticed
that a sample transformed into polytetrafluoroethylene, the
chemical name for Teflon. In its natural state, Teflon
appears as a colorless and odorless powder. Despite
emerging by accident, this chemical quickly gained
attention due to its special properties that make it the
slipperiest material ever developed. Most industries utilize
Teflon in manufacturing, and it became a household word
by being used on non-stick kitchenware. People have
pondered the question, if nothing sticks to Teflon, how can
Teflon stick to a frying pan or other cooking implement?
Scientists accomplish this by blasting a pan with grit and
ceramics to form indents in the steel and then spraying on
coats of decreasing stickiness.

4. In honor of Plunkett's revolutionary achievement, President George H.W.
Bush awarded him the National Medal of Technology and Innovation, and
The Plastics Academy’s Hall of Fame and the National Inventors Hall of
Fame inducted him into their organizations. DuPont still benefits from its
connection to Teflon, and it runs a yearly contest awarding those who invent
creative things to do with the substance.