Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-17-2008, 05:00 PM   #1
Member
 
Join Date: Jul 2007
Posts: 77
Rewards Points: 75
Default

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

flashme18 is offline   Reply With Quote
Old 05-17-2008, 05:53 PM   #2
Member
 
Join Date: Jan 2007
Posts: 2,384
Rewards Points: 1,000
Default

Algae like substance growing on roof


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

Ed the Roofer is offline   Reply With Quote
Old 05-27-2008, 01:30 PM   #3
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


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 .
apple roof cleaning is offline   Reply With Quote
Old 05-27-2008, 09:36 PM   #4
Member
 
the roofing god's Avatar
 
Join Date: Aug 2007
Location: Pomona,New York,10970
Posts: 877
Rewards Points: 500
Send a message via MSN to the roofing god
Default

Algae like substance growing on roof


will the copper sulfate damage the roof shingles ?
__________________
"If it`s worth doing,It`s worth doing right!!"

www.ADVANCEDROOFINGNEWYORK.com
the roofing god is offline   Reply With Quote
Old 05-27-2008, 10:27 PM   #5
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


In 15 years of treating roofs in Florida, no problems.
Except happy customers and clean roofs
apple roof cleaning is offline   Reply With Quote
Old 05-28-2008, 07:21 AM   #6
Member
 
Join Date: Jan 2008
Location: So. IN.
Posts: 161
Rewards Points: 150
Default

Algae like substance growing on roof


Quote:
Originally Posted by apple roof cleaning View Post
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 ???
comp is offline   Reply With Quote
Old 05-28-2008, 08:17 AM   #7
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


Quote:
Originally Posted by comp View Post
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
apple roof cleaning is offline   Reply With Quote
Old 05-28-2008, 08:31 AM   #8
Member
 
Join Date: Jan 2008
Location: So. IN.
Posts: 161
Rewards Points: 150
Default

Algae like substance growing on roof


Quote:
Originally Posted by apple roof cleaning View Post
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
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

Last edited by comp; 05-28-2008 at 08:34 AM.
comp is offline   Reply With Quote
Old 05-28-2008, 08:43 AM   #9
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


Quote:
Originally Posted by comp View Post
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
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.
apple roof cleaning is offline   Reply With Quote
Old 05-28-2008, 08:51 AM   #10
Member
 
Join Date: Jan 2008
Location: So. IN.
Posts: 161
Rewards Points: 150
Default

Algae like substance growing on roof


Quote:
Originally Posted by apple roof cleaning View Post
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
comp is offline   Reply With Quote
Old 05-28-2008, 10:15 AM   #11
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


Quote:
Originally Posted by comp View Post
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
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
apple roof cleaning is offline   Reply With Quote
Old 05-28-2008, 10:21 AM   #12
Member
 
Join Date: Jan 2008
Location: So. IN.
Posts: 161
Rewards Points: 150
Default

Algae like substance growing on roof


the brine water in the softner Should be stong enough
comp is offline   Reply With Quote
Old 05-28-2008, 11:01 AM   #13
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


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 ?
apple roof cleaning is offline   Reply With Quote
Old 05-28-2008, 11:37 AM   #14
Member
 
Join Date: Jan 2008
Location: So. IN.
Posts: 161
Rewards Points: 150
Default

Algae like substance growing on roof


Quote:
Originally Posted by apple roof cleaning View Post
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
comp is offline   Reply With Quote
Old 05-28-2008, 12:00 PM   #15
Roof Cleaning Expert
 
Join Date: Mar 2008
Location: tampa
Posts: 30
Rewards Points: 25
Default

Algae like substance growing on roof


Quote:
Originally Posted by comp View Post
he can grab a bucket and sling it up on a spot and see what it does and not have 30seconds in it
He He
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 ?

apple roof cleaning is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Flat roof questions, advice, ballpark estimate JerryH Roofing/Siding 18 11-07-2008 04:08 PM
Flat roof - Rolled? - leaks Advice? JJ2001 Roofing/Siding 4 11-19-2006 06:17 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.