DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   Roofing/Siding (http://www.diychatroom.com/f9/)
-   -   Algae like substance growing on roof (http://www.diychatroom.com/f9/algae-like-substance-growing-roof-21122/)

flashme18 05-17-2008 05:00 PM

Algae like substance growing on roof
 
is there a chemical i can spray on the roof to get rid of this stuff? It grows in the shaded areas. I spend 30 minutes on the roof today cleaning out the gutters from all the stringry crap that comes out of the trees here in north jersey..there were some wet clumps on the roof and under the algae stuff was super green..the dry areas were light green. how do i get rid of this stuff..the trees cant be trimmed back or removed. thanks

Ed the Roofer 05-17-2008 05:53 PM

I know of this product and it comes in many different brand labels.

Google Oxygen Bleach for more results, but here is one good source for information.

http://www.askthebuilder.com/B344_Mo...n_Bleach.shtml

The dry stuff can be brushed away with a stiff bristle push broom.

Ed

apple roof cleaning 05-27-2008 01:30 PM

Roof Cleaning Information Black Streaks
 
The streaks you see on your roof are Algae.
IOW, a plant is growing there.
Use Copper Sulfate and water to kill this plant.
Copper Sulfate is used to keep tree roots out of septic tanks.
It can be found at any Home Depot or Lowes in the Plumbing section.
Mix 3 oz's to a gallon of water, and spray on the roof.
Let sit.
Water all plants before, after, and during.
Sit back, and watch the rain remove the Algae .

the roofing god 05-27-2008 09:36 PM

will the copper sulfate damage the roof shingles ?

apple roof cleaning 05-27-2008 10:27 PM

In 15 years of treating roofs in Florida, no problems.
Except happy customers and clean roofs

comp 05-28-2008 07:21 AM

Quote:

Originally Posted by apple roof cleaning (Post 126142)
The streaks you see on your roof are Algae.
IOW, a plant is growing there.
Use Copper Sulfate and water to kill this plant.
Copper Sulfate is used to keep tree roots out of septic tanks.
It can be found at any Home Depot or Lowes in the Plumbing section.
Mix 3 oz's to a gallon of water, and spray on the roof.
Let sit.
Water all plants before, after, and during.
Sit back, and watch the rain remove the Algae .

how much watering on the plants ??? and is it OK for septic tanks in the pipes if i use it there to ???

apple roof cleaning 05-28-2008 08:17 AM

Quote:

Originally Posted by comp (Post 126294)
how much watering on the plants ??? and is it OK for septic tanks in the pipes if i use it there to ???

The plants could be tarped ?
The idea is to keep the CS OFF the plants, except the plant on the roof.
My house is 50 years old, only lived here for 4 years.
Haven't had any problems, YET.
And no tree roots either.
I suppose Round Up could be used too, as well as anything that kills, or prevents plant growth.
I have a friend who SWEARS by Salt Water ?
He simply uses Rock Salt and water mixed once a year.
The whole idea ?
KILL the plant growing on your roof, and make conditions uncomfortable for it to re grow ?
But dont kill wanted plants,, or compromise your roof in the process :no:

comp 05-28-2008 08:31 AM

Quote:

Originally Posted by apple roof cleaning (Post 126308)
The plants could be tarped ?
The idea is to keep the CS OFF the plants, except the plant on the roof.
My house is 50 years old, only lived here for 4 years.
Haven't had any problems, YET.
And no tree roots either.
I suppose Round Up could be used too, as well as anything that kills, or prevents plant growth.
I have a friend who SWEARS by Salt Water ?
He simply uses Rock Salt and water mixed once a year.
The whole idea ?
KILL the plant growing on your roof, and make conditions uncomfortable for it to re grow ?
But dont kill wanted plants,, or compromise your roof in the process :no:

hmmmmmmmmmm i use salt here alot,I have city water and a septic tank ,,(well water behind us)is why i use the salt,cheap to , My brother lives in JAX and i'll let him know to try the salt first,,,he can just dip it out of his softner :thumbsup:

apple roof cleaning 05-28-2008 08:43 AM

Quote:

Originally Posted by comp (Post 126310)
hmmmmmmmmmm i use salt here alot,I have city water and a septic tank ,,(well water behind us)is why i use the salt,cheap to , My brother lives in JAX and i'll let him know to try the salt first,,,he can just dip it out of his softner :thumbsup:

I think the salt water would work ok for a roof, but perhaps TOO corrosive for a septic tank, and not strong enough to kill tree roots perhaps ?
Heck, the coppper sulfate is cheap, 10 bucks for a pound of it.
It is Blue Crystals.
Mixes right up with water.

comp 05-28-2008 08:51 AM

Quote:

Originally Posted by apple roof cleaning (Post 126315)
I think the salt water would work ok for a roof, but perhaps TOO corrosive for a septic tank, and not strong enough to kill tree roots perhaps ?
Heck, the coppper sulfate is cheap, 10 bucks for a pound of it.
It is Blue Crystals.
Mixes right up with water.

Thanks :thumbsup:

apple roof cleaning 05-28-2008 10:15 AM

Quote:

Originally Posted by comp (Post 126310)
hmmmmmmmmmm i use salt here alot,I have city water and a septic tank ,,(well water behind us)is why i use the salt,cheap to , My brother lives in JAX and I'll let him know to try the salt first,,,he can just dip it out of his softener :thumbsup:

IF he is gonna try the salt method, it MUST be a really salty solution.
Like I said, my fellow roof cleaning friend uses this method to keep roofs clean, not to clean them.
I remember living up north.
We had Ivy growing up our bricks.
Dad cut the roots, and it eventually fell off the house.
Same with the roof algae.
Kill it, and it will gradually fall off.
I clean roofs for a living.'
My customers want a clean roof NOW.
Thus, I use a method with instant results because I want to get paid :thumbsup:

comp 05-28-2008 10:21 AM

the brine water in the softner Should be stong enough :thumbsup:

apple roof cleaning 05-28-2008 11:01 AM

Here is the process of death http://www.newton.dep.anl.gov/askasc...1/gen01939.htm
I would STILL use the copper sulfate myself :)
But for those with some excess salt lying around, what the heck ?

comp 05-28-2008 11:37 AM

Quote:

Originally Posted by apple roof cleaning (Post 126357)
Here is the process of death http://www.newton.dep.anl.gov/askasc...1/gen01939.htm
I would STILL use the copper sulfate myself :)
But for those with some excess salt lying around, what the heck ?

he can grab a bucket and sling it up on a spot and see what it does and not have 30seconds in it :laughing::laughing:

apple roof cleaning 05-28-2008 12:00 PM

Quote:

Originally Posted by comp (Post 126367)
he can grab a bucket and sling it up on a spot and see what it does and not have 30seconds in it :laughing::laughing:

He He :laughing:
It MAY require more them one treatment of the salt to kill GROWING Algae ?
But, the salt may be good enough to PREVENT algae from growing, or re growing on a roof.
Tell you a true story.
I clean roofs for a living, and a little old lady hired me to clean her roof.
One side was totally clean, the North Side.
Her Grandson was an auto detailer, and applied Armor All to the roofs north side.
It was spotless, but the rest of the roof was filthy.
I have spilled Armor All on driveways, and seen mildew grow all around the spilled armor all.
Actually, I have given preventing algae quite a bit of thought, since this is how I make a living.
What is needed is a time released plant poison applied to a roof.
I THINK if you mixed some copper sulfate in a cheap wax or silicone, and applied it to a roof, it would keep it clean long term, until the wax or armor all, or silicone wore off.
Time Released Copper Sulfate, or even SALT ?


All times are GMT -5. The time now is 04:05 PM.


Copyright 2003-2014 Escalate Media LP. All Rights Reserved