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Old 11-26-2012, 04:36 PM   #1
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


I have a Mobile Home in Northern Florida, and need to do something with the Roof within the next 2 years max. What id really like to do if something is available, is apply a solar liquid reflective covering on top of the present asphalt shingles .

Has anyone had good experience with such ? Id like to avoid a TearOff while at the same time reduce the solar heat gain thru the roof into the attic.

Thanks,
David Norman.

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Old 11-26-2012, 05:40 PM   #2
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


Just not worth the time and money to do it.
#1 It's going to make it a nightmare to tare off once you do if you cover it with sealer. I know I would charge double to strip it.
There's just no way I'd 100% be sure it would even stop leaking doing it that way.
Strip it, repair any damged sheathing, paper it and use a lighter colored shingle.

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Old 11-26-2012, 09:42 PM   #3
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


I never recommend covering an asphalt shingle with any products.If it was recommended the shingle manufactures would have a product line just for that.

However I did have a neighbor who rolled a couple of 5 gallon buckets over his roof.It ran off the roof and down his siding,gutters,fascia wrap and every point in between.His house had brown siding and gutters,fascia wrap you could imagine what the silver streaks and runs looked like.

And the funniest part is he didn't know what was happening until he was coming of the roof.Imagine his surprise of realizing the damage he caused from the sealer he used.

We had a hail storm in the spring and I replaced everything with new.The shingles were sealed together so bad we had to set a junk skil saw and run it in 4' by 4' sections just to get it off.

But he did say that it never leaked after he rolled that on the roof.

Last edited by Roofmaster417; 11-26-2012 at 09:47 PM.
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Old 11-27-2012, 09:01 AM   #4
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


Thanks Fellas for your two replies ; i wonder if Shingle Manufacturers have a vested interest in selling replacement Shingles rather than promoting / endorsing / agreeing to a Roof Shingle Sealer (?)

Have you had experience with, or heard of this product ? : http://www.chirienterprise.com/Roof-It/Roof-It.html . In the site, are pictures of a completed job with testimonials and even a free sample upon request of it. Thanks.

P.S> Heres the reply i just got from the Site Company :

David.

Use any light color for reflective

Price 5 gallon is $299 plus shipping

Coverage 5 gallon on asphalt shingles is 400 sq ft one coat

apply 2 coats for leaking or very old shingles

We offer volume discounts on larger orders -

We can custom color 5 gal pails - all we need is a Benjamin Moore paint color code and name

Last edited by TheyCallMeDave; 11-27-2012 at 09:49 AM.
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Old 11-27-2012, 09:54 AM   #5
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


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However I did have a neighbor who rolled a couple of 5 gallon buckets over his roof.It ran off the roof and down his siding,gutters,fascia wrap and every point in between.His house had brown siding and gutters,fascia wrap you could imagine what the silver streaks and runs looked like.

And the funniest part is he didn't know what was happening until he was coming of the roof.Imagine his surprise of realizing the damage he caused from the sealer he used.
and you don't have pics of this ?!
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Old 11-27-2012, 10:28 AM   #6
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


Close the cost per sq. ft. to DIY the shingles with new ones and do it right.
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Old 11-27-2012, 10:39 AM   #7
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


So at best it is $1.75/sqft and gets you another couple of years of life out of your current roof? Compare that to $2.50/sqft for new shingles... no brainer.
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Old 11-27-2012, 10:56 AM   #8
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


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So at best it is $1.75/sqft and gets you another couple of years of life out of your current roof? Compare that to $2.50/sqft for new shingles... no brainer.
Not exactly.......

$1.75 for 2 years....$0.875/yr

$2.5 for 25-30 years....$0.10/yr

And that is assuming the above coating does not make the tear off more difficult.
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Old 11-27-2012, 11:35 AM   #9
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


Another thing to keep in mind is that the shingles are only one component of a quality roof. I can't say how common it is, as I haven't done a lot of them, but on the mobile home roofs that I have worked many of the vents and flashings were in poor condition and few of them were installed properly. On one that I recall in particular, and this appeared to have come right from the factory, the hole in the sheathing had been cut way too large, and it had been corrected by nailing a tin patch around the opening, and fastening the shingles in that area with sheet metal screws; I have to give them credit though, because they used large washers under the screw heads! Particularly on a low pitch roof, you would be doing yourself a huge favor to take everything off, examine the sheathing, flashings, etc., and go from there. Scroll back through recent threads, or use the search function, and you will find a lot of good advice on proper shingle and flashing installation. And, if you do replace rather than patch the roof, which, as you can see from other posts would be a very price conscious decision, read the shingle instructions, which will be on the outside of the package, and pay particular attention to those related to low pitch roofs.
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Old 11-27-2012, 01:58 PM   #10
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


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So at best it is $1.75/sqft and gets you another couple of years of life out of your current roof? Compare that to $2.50/sqft for new shingles... no brainer.
The coating is good for 20-25 years of life., and a DIY can do it thereby making the labor cost zilch.
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Old 11-27-2012, 04:45 PM   #11
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


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The coating is good for 20-25 years of life., and a DIY can do it thereby making the labor cost zilch.
What roofer told you that, excluding manufacturer claims on their new reformulated 1 year old product? The same company has been changing it's name every two years as the failures come to roost and renaming it each time and adding or taking something out for the new formulation each time, imho.
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Old 11-27-2012, 06:09 PM   #12
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


To answer your question, "Has anyone had good experience with 'such' ?", the answer is "Yes."

It's usually into it's 6th. month when i get called to ask what's wrong. I usually tell them to let it leak for another year or so until it's fully cured before I tear the roof off to replace it.
Several companies around here bought into the hype in the 70's. I even worked for one of them. Several went bankrupt when the roofs failed and people wanted their houses replaced due to extensive damage. I can't say it's the same product/company/etc, but I'm familiar with the 'roof in a bucket' concept.
If you want further clarification on it's usefulness, go to any mortgage co. and tell them you want to buy a house roofed ith any canned product. They'll set you straight. Just how many new homes has anybody here seen 'bucket-roofed' in all the new developments? Post your pix here please.
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Old 11-27-2012, 06:29 PM   #13
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


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The coating is good for 20-25 years of life., and a DIY can do it thereby making the labor cost zilch.
Well if you believe that I've got a bridge to sell you! The prices I quoted are without labour, and a DIYer could do a shingle roof as well.

Tinner is right. If it was really that great you would see it used more often.
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Old 11-28-2012, 12:38 PM   #14
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


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To answer your question, "Has anyone had good experience with 'such' ?", the answer is "Yes."

It's usually into it's 6th. month when i get called to ask what's wrong. I usually tell them to let it leak for another year or so until it's fully cured before I tear the roof off to replace it.
Several companies around here bought into the hype in the 70's. I even worked for one of them. Several went bankrupt when the roofs failed and people wanted their houses replaced due to extensive damage. I can't say it's the same product/company/etc, but I'm familiar with the 'roof in a bucket' concept.
If you want further clarification on it's usefulness, go to any mortgage co. and tell them you want to buy a house roofed ith any canned product. They'll set you straight. Just how many new homes has anybody here seen 'bucket-roofed' in all the new developments? Post your pix here please.
Just talked to a Consumer who used Roof It ...heres what he wrote :

"
I applied my 1st coat in August 2011 and to this day, I am totally satisfied with the product and it has exceeded my expectations. As we do get a fair amount of rain and cool temperatures, I used a wire brush and cleaned the moss off of the shingles. I then swept the roof off with a push broom and then applied the product, it was a s easy as that. If you do not have any moss, all you would need to do was sweep it and nail down any shingles that have curled or lifted. The product has not faded at all.

I did apply a 2nd coat in July 2012. I planned on doing the 2nd coat in 2011 but ran out of warm, dry days. The 2nd coat was much faster to apply and took much less product and sealed the roof completely. I recommend two coats.

Roof it is an amazing product. My roof is sealed completely, the moss will not continue to grow as there is no longer spaces for water to sit and as our house is on a hillside and we get some high winds, the shingles will not lift in the high winds. This product dries as hard as cement and I have no doubt that it will last for many years. I have recommended it to many people. My wife and I are actually going to paint our entire stucco house with it within the next few years. My Dad also applied Roof It to their mobile home and it sealed the roof and kept their home much cooler.

In the summer when it is hot out, the white color has lowered the temp. in our house by at least 5 degrees Celsius. You will notice a big difference in the heat in your house and if you feel a treated shingle versus a non-treated shingle after the sun has been on it, you will feel a huge difference in the temperatures of the shingles.

While it takes a fair amount of time to apply the first coat, it is time and effort well spent. I can ensure you that you will be satisfied with the product. My advice to you is be careful when applying it, if you spill or drop any, it will not come off. I dropped a couple of drops onto the bricks in front of our house and I think it will be there as long as the bricks are. Pease let me know if I can provide further information".

Being a Roofer, i think your opinion is biased but i thank you for contributing in this thread. I feel very confident moving forward with Roof It Coating and i doubt that i will regret it in the least.
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Old 11-28-2012, 01:06 PM   #15
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Is there a coating that can be applied over existing asphalt shingled Roofs ?


It has been my 'experience' reading reviews.....when a review is more than 2 paragraphs long.....it's a plant by the product seller....much the same way a review that says "Pure junk, don't buy it" was most likely submitted by the competition...

A 'real' review goes something like this...

"Instructions could be better...but it does what it should."

Or

"It took longer to apply and I screwed up the prep so it does not look as good as it should."

etc, etc, etc...

Dave...it's obvious your looking for short cuts and your trying to find the right info to justify your decision....

Just go ahead and do it....then report back next year to let us know if we were right or wrong.

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