Patent ID: 9725902
Date: 2017-08-08
CPC Classifications: E04B,E04C,E04D

Claim:
1. A panel comprising: an insulating barrier having an opposing pair of sides, the insulating barrier including a first stratum and a second stratum each having an inside portion and an outside portion, the inside portion of the first and the second stratum having a first plurality of ridges and a second plurality of ridges, respectively, each of the ridges of the first stratum extending to meet more than one of the plurality of ridges of the second stratum, the outside portion of the first stratum being an externally flat unbreached layer supporting and being formed of the same material as the first plurality of ridges, the outside portion of the second stratum being an externally flat unbreached layer supporting and being formed of the same material as the second plurality of ridges, the first and the second plurality of ridges facing each other, the first plurality of ridges running athwart the second plurality of ridges, one or more adjacent pairs of the first plurality of ridges having between them clearance providing a mechanical chase across at least most of the panel; and a cladding overlaying the insulating barrier on at least one of the opposing pair of sides, the cladding having a density exceeding that of the first and the second stratum.