Can you safely paint vinyl siding a shade darker than its original color?

I have to paint a storage building that is sided with white vinyl siding, to a light/medium shade of gray to match our new homes vinyl siding. I have seen a warning on some of the paints I am considering using that you shouldn’t paint vinyl darker than the original color, only lighter. It says [...]

I’m pouring a cement pad that’s 11 1/2 ft x 11 1/2. What is the minimum depth I can safely get away with?

Also, I’m pouring this slab inside a dirt-floor barn, that already has a concrete foundation around the sides. Can I pour the new concrete right butt-up to the old concrete foundation? or do I need to use some kind of spacers? If so what kind? wooden? how big? [...]

Is There a Way to Safely Remove Virginia Creeper Tendrils From Metal Siding?

Last year my dad tore down a massive growth of virginia creeper that was attached to the side of the house (aluminum siding). However, the sticky tendrils still remain today; I have already tried knocking them loose with a hose. Is there a way to remove the tendrils without damaging the siding?