awaiting trial. megyn: one of our viewers emailed in saying what kind of roof does that house have? because it doesn t seem to be burning. she has a point. reporter: it looks like it s going to take a while. they said they hoped these chemicals and explosives would be incinerated in 45 minutes but the house could burn for 3-4 hours. we expect it could take some time to burn the structure down. megyn: do we know why they didn t clear any trees in the area in they are right on top of the home and the blaze. reporter: they did do some initial brush clearance and they cleared the brush they felt they needed to clear. the officials told us they repaired this area as much as they possibly could to do this kind of operation. over and over again they told us how this is so unique. they have never done anything like this before.