Have brick house. there is a older alumni um screened enclosure attached in
back........has corrugated alum roof. Where it butts up to brick wall was
caulked, but the caulk has cracked and leaks mucho water down wall when it
rains.....I am using a heat gun to soften and remove old caulk, am getting
most....but not all... of the old caulk out......What is best material/caulk
to seal this thing for as long as possible? I am thinking a good silicone
exterior caulk? the space to between roof and wall is not
consistent........some places up to 3/8 inch gap.