I have a customer that used Raid to spray some hornet nests and it has stained the shingles dark, and he says its very sticky (could be the honey from the comb)
Anyone run into this, and what did you use to get it off. Being sticky, I don't think a regular roof mix is going to touch it.
Maverick Contracting said
Aug 24, 2017
Most likely a petroleum based spray melted and lifted the asphalt oils to the surface
BlueRidge said
Aug 24, 2017
I would look at what is in Raid and see if it actually has enough of "something" that would effect the shingles. If can't be honey since hornets don't produce honey.
Wasps steal honey in large amounts if they can get access to a bee-hive but usually they are carnivores, feeding on larvae and small insects.... Wasps do not in fact store anything. Their paper-like combs are only used to rear wasp larvae.
I wish I could help more.
Fred W said
Aug 29, 2017
Pictures would be the way to go. If it is honey....a roof mix would eat it up.
Eric Schnaible said
Aug 30, 2017
We always have some on the truck and use it fairly often. Never stained any type of roofing in any way or left any residue.
Dave said
Aug 31, 2017
Update. I sampled roof mix, gutter grenade, F9 and oxalic acid. Nothing touched it. It is a petroleum product. The guy sprayed a few cans to get rid of the wasps, and it has really stained the shingles. When i rinse, you can see the oil sheen on the shingles. It appears that it has soaked into the shingles, and short of using a product to remove the oil, and ruin the shingles, I think it will be money wise for the owner to replace the 10 or so shingles.
Fred W said
Aug 31, 2017
Sounds better to replace for sure....
waxman18324 said
Aug 31, 2017
Have you tried EBC from Carlos Gonzales?
Hank
mikepas said
Aug 31, 2017
I would do a test spot with hand cleaner + pumice with a bristle brush. I removed a lot of different stains with it.
Patrick G said
Sep 2, 2017
How about some real hot water to melt it off?
Maverick Contracting said
Sep 2, 2017
Ive "painted" spots where lichen took off granules and painted "speckles" at the customers request LOL.
He was selling house.
It was durable oil paint so it bonded good to asphalt.
Dave said
Sep 3, 2017
EBC did not do anything
mikepas said
Sep 3, 2017
Dave, i would advise you not do your testing on the shingles on the roof.
What i would do is see if i could duplicate the stain on test shingles (buy some if needed) then run your mixes on them.
You'll have so many chemicals on the roof stain nothing will work or might stop something from working. Just my two cents
The homeowner could replace the stained shingles but we would like to know what will work on the stain the next time this happens.
Mike
Jim Williams said
Sep 16, 2017
The label for Raid Hornet Spray says to avoid excessive wetting of asphalt, you may want to download the label and give it to your customer, it will reinforce any solutions you offer. The phone number on the label could offer you some additional help.
Admin said
Dec 1, 2020
I never had much luck getting Raid off a surface
DirtyRoofcom said
Dec 3, 2020
If you have ever recieved a lead from a competent roofer now would be a good time to return the favor.
If you want to see if you can find the answer maybe the roofer can save the old shingles for you.
BlueRidge said
Dec 3, 2020
Good one to re post and remind people to be careful with what they are spraying.
I have a customer that used Raid to spray some hornet nests and it has stained the shingles dark, and he says its very sticky (could be the honey from the comb)
Anyone run into this, and what did you use to get it off. Being sticky, I don't think a regular roof mix is going to touch it.
I would look at what is in Raid and see if it actually has enough of "something" that would effect the shingles. If can't be honey since hornets don't produce honey.
Wasps steal honey in large amounts if they can get access to a bee-hive but usually they are carnivores, feeding on larvae and small insects.... Wasps do not in fact store anything. Their paper-like combs are only used to rear wasp larvae.
I wish I could help more.
Hank
I would do a test spot with hand cleaner + pumice with a bristle brush. I removed a lot of different stains with it.
He was selling house.
It was durable oil paint so it bonded good to asphalt.
Dave, i would advise you not do your testing on the shingles on the roof.
What i would do is see if i could duplicate the stain on test shingles (buy some if needed) then run your mixes on them.
You'll have so many chemicals on the roof stain nothing will work or might stop something from working. Just my two cents
The homeowner could replace the stained shingles but we would like to know what will work on the stain the next time this happens.
Mike
If you want to see if you can find the answer maybe the roofer can save the old shingles for you.
Good one to re post and remind people to be careful with what they are spraying.