That looks like a worst case. With some internal bracing you might fish sheets of insulation in the gap.
It looks loke the best bet might be to take the hood off, turn it over, pour expanding foam in the cavity and scrape off the excess,
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|