Locate and click on picture that looks like the actual problem.
Algae
Alligatoring & Wrinkling
Blistering/Peeling
Burning
Chalking
Cracking of rough-sawn siding
Cracking over caulk
Darkening & Decaying of wood
Discoloration
Edge swell/hardboard siding
Efflorescene
Fading
Flaking
Frosting
Mildew
Peeling
Peeling on galvanized metal
Plywood cracking
Rust bleed
Surfactant leaching
Tannin Staining