Gutter Maintenance and Cleaning Flashcards

What is the best approach for removing a wasp or hornet nest found inside a gutter?

Answer: Treat with an appropriate insecticide at night when insects are inactive, then remove the nest

Treating nests at night when insects are dormant with a labeled insecticide is the safest method before physically removing the nest.

What product is commonly applied to clean and restore oxidized or chalky aluminum gutter exteriors?

Answer: White vinegar diluted with water or gutter brightener (oxalic acid-based cleaner)

Gutter brighteners containing oxalic acid or diluted white vinegar dissolve the oxidized aluminum oxide layer to restore the original finish.

Dark vertical streaks on the outside of white gutters are caused by what phenomenon?

Answer: Tiger-striping: a combination of electrostatic charge attracting pollutants and roof runoff staining

Tiger stripes are caused by a combination of electrostatic attraction and runoff carrying organic and mineral compounds from the roof surface down the gutter face.

What is the first step before beginning any gutter cleaning or maintenance work on a ladder?

Answer: Inspect the ladder for defects and confirm it is rated for your weight plus tools

OSHA guidelines require inspecting the ladder for cracks, loose rungs, and ensuring the load rating (duty rating) exceeds your combined weight with equipment before use.

What is the purpose of flushing downspout elbows with a hose before removing them?

Answer: To dislodge compacted debris before disassembling so it doesn't fall on you

Pre-flushing loosens compacted debris in elbows so it doesn't create a mess or fall on the technician when the elbow is removed.

How frequently should gutter hangers and screws be inspected and tightened as part of a maintenance routine?

Answer: Annually, as part of a standard cleaning visit

Annual inspection of fasteners during cleaning visits catches loose hangers before they cause sagging, water pooling, or gutter separation from the fascia.