Hey Julie -Most areas converted from aluminum to copper by the 70s, so it wouldn't be a bad idea to confirm that there is aluminum wiring in the house (you might be pleasantly surprised).In fact, if you're new to rehabbing (if you've done fewer than 3 or 4 houses), I would highly recommend an inspection.

Same as above except measure from aluminum frame to frame, deduct 1/2" from both sides, and skip the Sawzall step.

The risks from aluminum wiring are due to oxidation - aluminum oxidizes (turns a black color) when exposed to air for long enough time.

The problems with aluminum wiring are oxidation related and the interface with copper since copper is a dissimilar metal from aluminum. 

Plan to replace the fence this year and will change windows from aluminum to vinyl within the next 2 years.

Excerpt from Aluminum-Wiring.comhttp://aluminum-wiring.com/Why Aluminum Wiring Is BadPosted on November 8, 2013 by AdminThe wire itself is not bad – what is bad is where the wire meets up with the receptacle.

You can tell copper from aluminum by the color

I plan to hold + rent the home for 10+ years, and I'd rather not have to spend a lot of time/money/energy maintaining the gutters (nor would I expect renters to be diligent about maintaining them, even if I included such a specification in my lease).I chatted with a gutter repair contractor, and he advised me to stay away from aluminum seamless, although that appears to be the most widely-promoted option.