A pressure washer may damage your roof.
How to rid hornets in roof.
Vinegar and sugar hornet trap 1 cup apple cider vinegar 1 cups of sugar 1 4 cup dish soap 2 liter plastic soda bottle.
Purchase an aerosol insecticide with a 15 to 20 ft 4 6 to 6 1 m range.
The first step in hornet control is to identify the pest.
Check the label and make sure that it produces a solid stream that reaches at least 15 ft 4 6 m.
Non poisonous method to get rid of a wasps nest in a roof you can use a garbage bag inside a landing net and a long handled scraper to remove the nest from the roof where it is attached.
In the bottom section place your bait then flip.
Place the bag over the nest knock the nest off with the scraper and seal the bag.
During the time that nests are being built it is common to see hornets scraping away a thin layer of wood from a wooden fence an old log or the side of an unpainted wooden building.
Be sure to use the high velocity setting on the hose s nozzle.
Find a pressurized can of aerosol insecticide labeled for wasps and hornets at a home improvement store or garden center.
Make sure you use gloves long sleeved clothes and a protective mask.
Make a plastic bottle trap using a sharp pair of scissors or a knife to cut a two liter plastic soda bottle in two just above the top of the label.