Cabots Bleaching Oil strip

[Ron G. 14]

Need some input on stripping / resealing using Cabot's Bleaching Oil.

While performing a roof cleaning, some of the adjacent cedar siding was lightened as a result of contact with the roof cleaning solution. (This was previously disclosed to the home owner that this may occur).

In the attached pics you can see where the roof solution brightened the shakes (about 1 foot above the the roofing). The blotchy areas above that and in the front entrance area was caused by pre-wetting with low pressure.

Cabot's website http://www.cabotstain.com/pdf/BOIL3241.pdf states that this product can be applied to surfaces previously treated with CBO. I'm wondering if the areas can be lightly cleaned with a percarb and resealed or will this cause a blotchy result.

My first thought is to completely strip and reapply CBO. The fact that the existing finish melted off so easily, with little pressure, I'm thinking that EFC-38 may do the trick.

Also I'm confused about product part #'s. anybody know if part # 6241 supersedes part # 3241 or are they two diff. animals?

[Beth n Rod 1,279]

I think EFC will do it, I think the shingles needed cleaning to begin with as well. I don't think touch up will make the owner happy, based upon what I see. I am not familiar with all the part numbers but I bet if you call their tech support they can help.

Beth

:cup:Galactic coffee:cup:

[RPetry 564]

Ron,

Also I'm confused about product part #'s. anybody know if part # 6241 supersedes part # 3241 or are they two diff. animals?

As with most of Cabot's exterior stains, the two different part #'s distinguish the same stain, one being VOC compliant, one not compliant. I would guess this is true for CBO. Not sure which is which. To make sure, see their web site.

[Ron G. 14]

I think EFC will do it, I think the shingles needed cleaning to begin with as well. I don't think touch up will make the owner happy, based upon what I see. I am not familiar with all the part numbers but I bet if you call their tech support they can help.

Beth

:cup:Galactic coffee:cup:

Thanks Beth.

The condition of the existing finish is terrible. Mold, mildew and areas of completely failed sealer. Not to familiar with this product but it is most likely lack of maintenance is the leading cause. At first I wondered why the HO would let it become so grimy. The pics. clearly indicate why. You look at this stuff funny and it melts off before your eyes.

[Ron G. 14]

Ron,

As with most of Cabot's exterior stains, the two different part #'s distinguish the same stain, one being VOC compliant, one not compliant. I would guess this is true for CBO. Not sure which is which. To make sure, see their web site.

Thanks, Rick

This makes sense, I'll check.

[plainpainter 217]

I'd say this is an instance where the homeowner is screwing you over a free staining job. You should have told him that stain would come off from just looking at it - and made him sign off on it. I don't see a bleaching oil - just a solid stain in a grey color?

[James 624]

Ron ,you can't clean a roof without effecting the siding when it comes to Bleaching oil. Most likely those areas were starting to degrade any way. What you might try is to do a bleaching of the siding and use a brush to blend in some of the stain from the good to the bad areas.

[Ron G. 14]

I'd say this is an instance where the homeowner is screwing you over a free staining job. You should have told him that stain would come off from just looking at it - and made him sign off on it. I don't see a bleaching oil - just a solid stain in a grey color?

Dan, I must admit, I committed a series of errors on this job. Right from the start I had the sense something was not right with this guy. With that said, as you know there are thousands upon thousands of homes just like this in the Northeast. Gotta learn some how. This one will hurt my ego & back more than my wallet.

[Ron G. 14]

Ron ,you can't clean a roof without effecting the siding when it comes to Bleaching oil. Most likely those areas were starting to degrade any way. What you might try is to do a bleaching of the siding and use a brush to blend in some of the stain from the good to the bad areas.

If I try this, will I be able to apply CBO to the lightened areas and blend into the non lightened areas?

[plainpainter 217]

Ron - you really F'd yourself - none of that stuff is your fault - other than you are blaming yourself for not alerting the homeowner upfront about the possibilities. I am running into guys left and right like that - they want me to somehow clean the same shake siding - without any coating - remove mildew - yet not harm adjacent surfaces. And I tell these folks that I can use a 'house' was - but I don't see it really giving them the results they are looking forward, and a 'restoration' is going to give a tooth or 'profile' to adjacent painted surfaces. And then they are on the fence about getting the shakes coated with a stain. I just chaulk it up to some homeowners are unreasonable or so ignorant - that they can't understand. I've walked away from alot of jobs like that. If I was faced with the job - I would have told the guy - look it's going to wipe off the adjacent coating/browning on the shakes - and a whole side will need to be repainted to look right. And I can guarantee 9 times out of 10 - they are like, well isn't that your fault. At that point, I just walk and let some less experienced guy who is hungry for the money and/or aggravation to take them on.

[James 624]

The issue is what is it going to like when it dries. It might look pretty good now and only looks bad wet. So the blending thing I would do without any new product and see what it looks like dry after blending. Cleaning that house will make a big difference and a little Blenda . You'll be Cedar Shake'n and Bake'n and a Son of a Bleach........

Another episode of cleaning up " MassahtwoShilts".

[plainpainter 217]

How much did you get for that roof, btw?

[Ron G. 14]

How much did you get for that roof, btw?

Empty your PM box.

Edited September 13, 2008 by Ron G.

[plainpainter 217]

just did

[MudDuck 20]

Did HO not want house cleaned as well? I mean come on is that mold all on the second floor in pic 2?....Hope you got some wiggle room there and this guy didn't have someone before you tell him what was going to happen and he kept calling until he found someone to burn....I'd be asking some sneaky questions to find out if this guy was warned by anyone else what could happen to try to document some culpability on his part.

Edited September 14, 2008 by MudDuck

[Ron G. 14]

Did HO not want house cleaned as well? I mean come on is that mold all on the second floor in pic 2?....Hope you got some wiggle room there and this guy didn't have someone before you tell him what was going to happen and he kept calling until he found someone to burn....I'd be asking some sneaky questions to find out if this guy was warned by anyone else what could happen to try to document some culpability on his part.

Some of this maybe true, however, I sold the homeowner a roof cleaning. This should not include cleaning / brightening adjacent surfaces. I screwed up and I know it. A series of mistakes on my part lead up to this event. Once I recognized the problem I immediately phoned the HO and informed him, my first step of damage control.

We now have a signed contract listing the scope and proposed outcome of further work to be performed. The HO has been very patient thus far and has commented that he has "total confidence that I will rectify the problem".

Personally in this biz, my reputation is paramount. In this case a little labor and money will go a long way in preserving my rep.

[Beth n Rod 1,279]

Some of this maybe true, however, I sold the homeowner a roof cleaning. This should not include cleaning / brightening adjacent surfaces. I screwed up and I know it. A series of mistakes on my part lead up to this event. Once I recognized the problem I immediately phoned the HO and informed him, my first step of damage control.

We now have a signed contract listing the scope and proposed outcome of further work to be performed. The HO has been very patient thus far and has commented that he has "total confidence that I will rectify the problem".

Personally in this biz, my reputation is paramount. In this case a little labor and money will go a long way in preserving my rep.

Exactly! I could not have said it any better.

Beth

[ShineBrite LLC 14]

I like this post. Looks like some of the stuff I see around here. Even fairly new Woodscapes jobs can just melt off with a drift of sodium hyd cleaner getting on them. I was doing decks on a $3mil house the other day and let some cleaner splatter on the siding. Pulled off a pc of the shingle siding, had SW match it and touched up. Looked perfect after it dried. Not the first time and won't be the last.