Laying out the Ba-gua with each qua in it's correct direction creates the concept of a large square with 3 by 3 smaller squares within the larger. These boxes are the 'building blocks' of Feng Shui; forming the road map (the ba-gua).
Thermostat Â® radiant barrier plywood sheathing reflects up to 97% of the sun's radiant heat from a homeâs attic and can help lower attic temperatures and improve energy efficiency.deal for residential and light commercial construction. 1  ThermostatÂ® Radiant Barrier Sheathing (Plywood) ThermostatÂ® radiant barrier plywood sheathing reflects up to 97% of the sun's radiant heat from a homeâs attic and can help lower attic temperatures and improve energy efficiency.
The job of a vapour barrier is to prevent vapour diffusion, and the job of an air barrier is to stop air leakage through differences in air pressure.o think of a windbreaker as an air barrier, and a raincoat as a vapour barrier. That is about as far as I can stretch the human to house analogy, hope it helps. Related topics: 1  Vapour barrier paint: faster, cheaper and better than polyethylene.