8
votes
1answer
248 views

Under what circumstances can aluminum be in contact with steel?

I understand galvanic corrosion and the chemistry which causes the reaction. But under what circumstances can they be in contact? On first impression I would think they could in a dry environment... ...
14
votes
6answers
8k views

What are the pros and cons of steel vs. aluminum metal roofing?

I'm considering a new roof for my suburban home. The home is about fourteen years old and the shingles are in so-so shape. We have had two leaks already and I've been told that means it is a good ...