Not shingles but techniques on these two sites might work
http://hon3annual.com/turning-styrene-into-wood/
http://www.pacificcoastairlinerr.com/aging_wood/
I tried to sell my two cents worth, but no one would give me a plug nickel for it.
I don't have a leg to stand on.
Mel, Personally I'd go with the Campbells shingles, I like their look and texture.
The freight doors on the abandoned warehouse were done with a base coat of tan then light built-up applications of Dr. Bens stains & finished with a bit of india ink/alcohol wash. The warehouse and doors are made of hydrocal, but same technique might work with styrene? Used similar technique on styrene when I still had a supply of Floquil stains with the base coat Floquil Foundation.
Good luck and regards, Peter
DSchmitt Not shingles but techniques on these two sites might work http://hon3annual.com/turning-styrene-into-wood/ http://www.pacificcoastairlinerr.com/aging_wood/
HO-Velo Mel, Personally I'd go with the Campbells shingles, I like their look and texture.
I would paint the styrene shingles with light gray auto primer, either Krylon or Rustoleum. That will give you the driftwood gray color wood turns with exposure to rainwater and sunlight. Then I might drybrush the shingles with some dark brown paint to simulate the color they come before the rain and sun turn them gray. Or I mighty drybrush them with grimy black to simulate the dark sooty look they give in urban areas with dirty air.
David Starr www.newsnorthwoods.blogspot.com