Metal, iron, magnesium, copper, and zinc are the main mineral culprits of these rusty stains. When introduced to water, the chemical reaction causes stains and spots. Objects and materials with lots of iron and other minerals, when mixed with the water from the sprinkler, rain, or even high humidity will cause dark orange spots on your sidewalk or porch.

If your gutters are not draining properly they are most likely full of leaves & debris which can cause foundation damage, rotted wood, mold, insect infestation, roof leaks, and basement leaks. Yikes!

Mold often grows in areas where there is a lot of condensation and high humidity. It reproduces by spores that are carried in air currents and can grow on most surfaces where moisture is present. This makes windows with lots of condensation a perfect location for growth.