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tlondgren

How is the roof structure made?

11 years ago
What type of roofing material, support structure, and insulation did you use?
Wain Rd - Pre-Cast Insulated Concrete Panel Passive Solar Home · More Info

Comments (3)

  • PRO
    11 years ago
    TPO for roof membrane
    TJI Joists for roof structure.
    Insulation is a hybrid of spray foam and fibre glass batt. Spray foam provides air tightness. Which is 0.6 on this home
  • 10 years ago
    Why not 100% spray foam?
  • PRO
    10 years ago

    Cost. Would of added about 38,000. The energy model did not need any more insulation than what we could get with 16" TJI rafters.