Re: [A/S] Urethane Foam Insulation

[Daisy Welch <jtdjtd@xxxxxxxx>]

Some additions to Oliver's usual intelligent response:

Since I recently jolted my way over the Interstates from FL 
to MA, I am reminded of the torture that everything in the 
trailer is subjected to.

I had urea formaldahyde  sprayed in the cavities of a 1740's 
cape, and it made a huge difference in the heat loss. But 20 
years later when the walls were opened up down to the timber 
frame, the foam had shrunk and crumbled, and did not fill 
all the cavities. I don't think you are allowed to use that 
kind anymore because of health concerns over outgassing if 
not applied exactly right.

In addition, I spent a lot of time working with Urethane 
foam as a sculpture medium for theatrical sets and props. It 
is very brittle, and had to be covered with something to 
strengthen it. My thought is that it might well shake itself 
into something resembling grated cheese pretty quickly.

Does anyone remember what the "clean room" AS renovator uses 
  for insulation ?

Daisy