Brian in Michigan wrote:
I remember being flamed years ago for sealing up the front end of my MH just behind the grill. I sealed it up using metal mesh and spray foam. Good grief the people just went nuts on how the engine heat was going to start a fire with the foam and non of this was near the engine. It all worked out and a dozen years later everything is just fine and working like I thought it would.It has always amazed me the responses that are giving from people who don't know their stuff from a hole in the ground.
WARNING: It takes 13 years for the foam to heat up. Then it explodes ;)