CavClear/Archovations, Inc.
www.cavclear.com
December 2000
Made from 100 percent postconsumer plastic, the CavClear masonry mat and insulation systems are made to facilitate drainage and ventilation within masonry walls. The recycled plastic is fashioned into fluid-conducting, nonabsorbent, mold- and mildew-resistant polymer mesh and bonded to extruded foam board insulation.

Hebel Building Systems
www.babb.com/aac
Autoclaved aerated concrete (AAC) blocks from Hebel offer significant energy and maintenance savings over many ordinary block framing systems. Without additional insulation, a Hebel wall can reduce heating and cooling costs over ordinary insulating systems. This efficiency is due to a combination of high R-value, thermal mass, and air-tightness. AAC production is low in energy consumption and raw material usage. Manufacture produces no environmentally toxic by-products.

US Technology
www.sealtechblock.com
July 2004
Made of 10 percent recycled thermoset high-strength plastic powder, Sealtech concrete masonry blocks are 10 percent lighter than, and have a two-hour fire rating, R value, and U value comparable to, standard concrete block. The water resistant blocks come in 16 colors in a split face or smooth finish in a standard 4'', 8'', and 12'' size.

Waste-free stone cutting
www.ice.it
Architect Angelo Mangiarotti designed the roof of the IMM Carrara SPA headquarters using a new profiling machine that cuts curved stone with a diamond wire tool, eliminating process waste altogether. 323/879-0950. Italian Trade Commission, Los Angeles.

Ytong Florida Ltd.
www.ytong.com
The company's autoclaved aerated concrete (AAC) blocks are is made from sand, water, and limestone. The raw materials are processed to create a structural building material with a large number of pores, known as aerated concrete. One unit of volume of the raw materials yield five units of volume of Ytong. Insulation value, due to pores, is high, while the product is light and easy to work with.

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