Rastra construction / roof leaks
We would appreciate some insight or opinions from any contractor or builder who is familar with Rastra construction. A search of this site turned up very little. Nothing since 2004. A google search raised questions about possible water-proofing problems.
We're considering buying a 9 yr old Rastra home in New Mexico that has had several roof leaks all within 2'-3' of an outside wall. The foam roof was covered with Firestone membrane to repair. The leaks appear to have stopped.
Most of the houses we have looked at are about the same age and also have foam roofs but not Rastra walls. None of those appear to have had any leaks.
We like the house and the concept of Rastra. But can't shake the worry the leaks could be related to the Rastra walls rather than just a faulty roof.