building at the end, and the building at this end were both filled with some material, wood and excelier stuff to start a fire. they lit them at the same time. four or five minutes ago. the building on the end is painted with regular latex paint on everybody's house. the building next to that is painted with latex paint. >> that is catching fire now. >> we can simulate the fire spread from house to house. and we anticipate unfortunately again. the next 2 buildings are coated with the fireproof paint. many companies make this stuff. this is a particular brand made international fire resistance. >> they were generous to do the mock up for us. >> they have done this at the request of the building department. we have seen that the building at the end, just painted with latex paint is just about gone. the building next-door is catching fire and will burn through the wall shortly. the building at this end show smoking as the material inside burns. we will see where it goes from there. here we have someone from california oes and fire department. put your hand right up against the wall it is no