Another way of destroying the nest is to squirt dishwashing liquid into the end of your hose pipe and run the water until suds appear.
How to remove wasp nest from roof.
A pressure washer may damage your roof.
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.
Then stand around 15 feet away from the nest and use a good powdered insecticide with a view to blocking the exit point carefully.
Grab a large cloth bag with no holes or tears.
Just put a small fire close by bbq or any other lit material beneath the nest.
Using a hose pipe or water using water is another common method reguarly used to try and destroy a wasp nest.
The other method is to smoke the nest.
Make sure you use gloves long sleeved clothes and a protective mask.
Use water or wasp killer if the nest is in the eaves and visible from the outside after you remove the soffit you may be able to spray the nest with water.
Apply the wasp killer as directed standing as far away as is practical and be generous.
Cover your wasp nest with the spray during.
Diy wasp nest removal advice destroying a wasp nest in a bush or shrub if you are dealing with a nest located in a shrub or bush watch and spot the entry and exist points of the wasps first.
Leave any nest entrance open to allow foraging members of the colony to come back in and come in contact.
Just mix two tablespoons of dish soap like the dawn dishwashing liquid soap with three to four cups of water and place the mixture into a spray bottle.
However if your wasp nest is indoors using water could actually cause more damage to your property.
Be sure to use the high velocity setting on the hose s nozzle.
Keep spraying the nest until the water completely soaks and destroys it.
Place the bag over the nest knock the nest off with the scraper and seal the bag.
Also flooding the nest will not get rid of wasps and will only make them more aggressive towards you leading to nasty stings.