Cover your wasp nest with the spray during.
How to remove wasp nest from roof.
Apply the wasp killer as directed standing as far away as is practical and be generous.
Keep spraying the nest until the water completely soaks and destroys it.
Grab a large cloth bag with no holes or tears.
Wearing your protective clothing set a bucket of water beneath the wasps nest.
A pressure washer may damage your roof.
However if your wasp nest is indoors using water could actually cause more damage to your property.
Then stand around 15 feet away from the nest and use a good powdered insecticide with a view to blocking the exit point carefully.
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.
Place the bag over the nest knock the nest off with the scraper and seal the bag.
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.
Be sure to use the high velocity setting on the hose s nozzle.
Also flooding the nest will not get rid of wasps and will only make them more aggressive towards you leading to nasty stings.
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.
When the water has pressure and is soapy it will blast the nest.
The other method is to smoke the nest.
It is possible to drown a free hanging aerial wasp nest using a cloth bag and a bucket of water.
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.
Using a hose pipe or water using water is another common method reguarly used to try and destroy a wasp nest.
Leave any nest entrance open to allow foraging members of the colony to come back in and come in contact.