Projects | Earth and Structure

Materials | Foam Block

Foam Block:

Share in the residential and light commercial building market because they’re quick to assemble and provide excellent energy performance.  The insulating core of SIPs is most commonly made from expanded polystyrene (EPS)- not to be confused with extruded polystyrene, which is not ozone safe – though in some cases polyurethane foam, or even compressed straw or mineral wool, is used.  SIPs are manufactured in a range of thicknesses providing different R-values-Living Comfort.

  • Saving / Increased Home Value
  • Structural Strength and Safety
  • Construction Advantages
  • Environmentally Responsible

Materials | Structural Steel


Commonly used for interior partitioning of commercial buildings, light-gauge steel framing is increasingly being used in residential construction.  Compared to solid wood, steel studs are lightweight, dimensionally stable, resistant to insect damage, and of consistent quality.  Cold-rolled steel framing typically contains 20-25% recycled material (10-15% post-consumer content), though some manufacturers have in excess of 90% recycled content.  Steel studs are also recyclable at the end of the building’s useful life.  Despite the advantages of light-gauge steel, its use can cripple a building’s energy performance when improperly used in exterior wall applications because of thermal bridging through the highly conductive steel.  Foam insulation is often recommended on the inside or outside surface of a wall to address this problem.  Products listed here have high recycled content or are designed to help minimize thermal bridging.

Steel is both the most energy-intensive framing material, on a pound-for-pound basis, and the most recyclable.  Overall, the steel industry’s recycling rate is over 60%.  Heavy-gauge structural steel framing members, from almost all sources, commonly have greater than 90% recycled content.  The embodied energy of steel averages about 19,200 Btu/lb; manufacture of structural steel from recycled materials conserves 5,450 Btu/lb.  In addition to having lower embodied energy, high-recycled-content steel results in lower impact associated with mining waste and pollution.  Products listed here contain at least 90% recycled content.