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Country Discussion Topics
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Sealing a concrete roof
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Gerrit    Posted 11-27-2004 at 15:40:34       [Reply]  [No Email]
I'm going to seal the roof of our house because we have some ( minor ) leaks. Like most of the houses here, ours has a flat, concrete roof. First I will clean the roof with my pressure cleaner, fill any small cracks with a cement mix.
After that I want to seal it.

Now there are all kinds of sealing products available from the hardware chain stores ( like Home Depot, National, Ace hardware etc. ) They all sell brands which are also sold on the mainland ( I guess ). Prices vary from around $ 50 to $ 120 for a 5 gallon bucket and of course they all say that their stuff is the best..

My question is, does anybody here has xperience ( good or bad ) with a roof sealant product? Please let me know!

Thanks in advance..

BOSS    Posted 11-27-2004 at 17:26:58       [Reply]  [No Email]
GAF makes a great coating called Topcoat. It is one of the newest and best coatings on the market today. It comes in different colors, but white is a stock color, the others are usually a special order. It comes in 5 gallon buckets and the price is about $135 a bucket. On a metal roof you will get about 500-750 sq ft. even up to 1000 sqft. You put it on with a 9 inch roller
They also make a flashing grade which is alot thicker and needs to be put on with a brush or by hand.

Gerrit    Posted 11-27-2004 at 17:56:59       [Reply]  [No Email]
Thanks Boss! Do you know wether that product is also good for concrete roofs?

BOSS    Posted 11-27-2004 at 19:01:17       [Reply]  [No Email]
Perfect for concrete, We just sealed up a Kmart block and brick wall with it a few days ago. The block absorbed it up like it was dying of thirst!! Made it so waterproof, that the GC is thinking about getting us back to seal the whole building.

Also, after you coat whatever you want to coat, you can go back and paint over the Topcoat.

Fern(Mi)    Posted 11-27-2004 at 17:24:55       [Reply]  [No Email]
Heavens! It has been years. in these northern states a hot roof was the best over the years many of them covered with pea rock for additional weight to hold them down.
For small jobs used to do a cold process near the same thing. An asphalt emulsion (it should be quit fluid) spread out with a roll of forty five pound paper laid in it (a half a piece the first pass). All the air bubbles rolled out. Then repeat process what you can walk on (of course) and half lap the first and each succeeding run working your way UP the roof for proper drainage. Like I say it has been years. To give more positive answers on products you’ll have to come and get me and we’ll both go down to Home Depot and read the labels together.
He he!

Gerrit    Posted 11-27-2004 at 17:59:43       [Reply]  [No Email]
Come and get you? Why don't we meet in the Home Depot in Caguas and check labels together. I'll give you a ride to our house and offer you a great home made dinner cooked by the one and only Patria!

bill b va    Posted 11-27-2004 at 17:21:13       [Reply]  [No Email]

boy the cows could do a lot of flat rocking there on the roof.

Gerrit    Posted 11-27-2004 at 18:12:01       [Reply]  [No Email]
lol well I 'll try a coating first and that doesn't work..

TB    Posted 11-27-2004 at 16:20:51       [Reply]  [No Email]
Can't help you. The only flat roof we had around caved in under the snow load the other year:^( Know the fire co has a steel roof:^)

Gerrit    Posted 11-27-2004 at 16:46:00       [Reply]  [No Email]
One thing I'm pretty sure of is that snow won't be a problem here lol

GeneSC    Posted 11-27-2004 at 16:15:54       [Reply]  [No Email]
I've used the white "COOL SEAL" with good results.
it's an asphalt -based material you roll-on.
Someone else may know of something better,

Gerrit    Posted 11-27-2004 at 16:42:19       [Reply]  [No Email]
Hey Gene, thanks!
Do you remember where you bought it?

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