Usually aluminum siding with paint that is oxidizing leaves the residue...if it was alum. we'd wash it really well then prime and paint.

Also, if you can find a place that will buy any metal you want to get rid of (especially aluminum and copper) you can recoup some cash.

Here are the things I have:- Two toolboxes - one for every day things, one for other tools- Big and little hammer- Screwdrivers of various sizes- Wrenches- Cordless drill- Corded drill- Drill bit set- Voltage tester- Pliers and needle-nose pliers- Wire strippers- Screws of various sizes- Nails of various sizes- Wire nuts- Light bulbs- Spare outlets and switches (and wall plates)- Hand saw- Circular saw- Step stool (actually have two)- Ladders - I have two, one that is light-weight aluminum and the other that telescopes to clean gutters- Gutter scoop- Gloves- Flashlights (I have 4)- Tape measures (I have 2)I'm sure I'm missing some things but I also do my own property management and a lot of my own repairs.

Lose the arches and aluminum pergola.  

Yes you can run an aluminum (chimney) liner down the chimney (assuming it fits & there is no blockages) & hook the hot water tank exhausts to it.

Roof was coated, primed and painted aluminum color to restore the look of the metal roof.

Same issue with field mice.I put aluminum plaster lath over the window wells to keep the critters out without spending a small fortune.

Look at the rafters to see if they are pulling away from the ridge beam or is they are bowed or cracked.For the electrical, pull the panel cover and see if you have corroded connections, aluminum wire connections, wire sizes correct based on the breakers that they are attached to, ground wires visible, signs of burn marks, etc.For the plumbing, run everything at once.

I've also seen this on aluminum siding too.

OK neighborhood, great school district.House needs a decent amount of repairs...One of the sticky issues with the house is the aluminum wiring.