Filling in ponds on flat roof with Roofslope Cement Product
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- čas přidán 21. 08. 2024
- Low slope roofs often have spots which retain water - i.e. "ponding". RoofSlope is a cement based product that can be used to fill in low areas so that the water sheds off them easier. This video will show how some small areas can be leveled out.
You saved me thousands by adding that little comment regarding not using coatings. A roofer came by and told me their were bubbles which would have made the coating fail quickly.
Thank you for the video, friend. I actually have used this product and also recommend ROOF SLOPE as an able product. The only recommendation that I'd add further, is to: *blow off the complete roof / wash down the complete roof. The substrate, no matter what type of roof is in-place, needs to be free of dirt & debris. If not? The ROOF SLOPE will simply, eventually let go. Just my 2 cents.
Thanks again!
I have been in the business for over fourty years, and I made this mistake thirty years ago....
Doesn't work, and it wont last. Especially if you have freezing seasons. It's not for fixing leaks. It's for substrate purposes when installing new roofs.
Interesting that they made this product that long ago. I was in remodeling (some roofing) but I am very familiar with the types of adhesives - this is somewhat of a "thin-set" type and if you've ever used that (on wood, cement or anything...it's sticky and it lasts forever! If you get some of it on your skin it's hard to get off....
But I think I will agree with you in terms of places that freeze a lot!
BTW, my repair lasted perfectly....I put a TPO roof down on top of it recently tho (applied some insulation and deck first).
Just get a leaf blower and a pressure washer with a surface cleaner attachment (takes 1/4 of the time)and you will have a sparkling roof that anything will stick to.
if using silicone roll on product clean well and spend the extra money for primmer
Thanks! I'm a newbie to home improvement/fixes but my apartment's balcony is roof essentially and water pools up in the same way it does on these roof types. This solution helps me get a better idea of what I'm dealing with!
Just want to say thank you
Don't you need to wet the base before applying this material?
Or brush a wetter creamy like thinner version first for good if any bonding between the layers first?
Won't this new patch detach itself otherwise over time?
In most cases probably not because the base is not mortar or stone (which you do want to wet or dampen). But since I am applying largely over aluminum roof coated asphalt, I don't think this would apply. It is VERY sticky stuff and none of it has come loose. Of course, if your roof heaves or settles a lot this might not be as good...BUT, it is also somewhat elastic. Think of it as more like the Thinset tile mortar which is like a glue- even sticks to your hands and gloves.
I just used this on a low spot on my flat roof. It rained after 2.5 days and i had leaking still. It says the product is not waterproof but water resistant. 1) is it possible it got saturated and the water went through it and 2) if so will it eventually cure more and dry more. 3) should i apply an elastomeric coating over it to make it waterproof?
its a cement product that means its porous i would roll on a rubberized roof product
Thanks for the good info and showing how you did your roof job. Question: I need to level a ponding spot on my balcony that is covered with a black rubber-like membrane. Do you know what product I should use for this?
Black is probably EPDM rubber type roof - there are many ways to go depending on the depth of the puddle. This cement sticks to anything (you might want to rough up the rubber a bit) , then you could apply black liquid coatings (a high grade, not tar) over that for looks. Some other companies make roof slope repair stuff that is even more sticky, but it;'s not made for as deep of a pond. Google "roof pond repair"
Good fix
DO NOT USE THIS ! IT WILL JUST ADD 100's of POUNDS TO YOUR ROOF. If there's an issue where it's ponding and can't get past the high flashing and rain gutters, it will just make the pond bigger, more heavy, and sink more.
I used less than one tub - so it may have added 80 lbs spread out which is nothing.
You are correct that it should only be used sparingly - if one needs much more sloping there are other ways to do it.
I have an upper patio deck with vinyl deck flooring material. the flooring has been painted over with deck paint over the years. There is a puddle of water that forms in one corner. Would the Patio slope product you use work on this type of flooring? My contract suggest cutting a channel but I don't like the idea. I was thinking of building up the slope to divert water flow which is less invasive. This product and your technique seems like the ideal solution. Let me know ...thanks :)
never seen it done that way before...but then i am a roofer
Similar compounds, many pre-mix, are used to stop ponding on commercial roofs. Henry 176 is one of them. Of course, in the older days roofers would build it up with paper and hot tar. It's handy to know about this stuff (it's my video) for those rare cases where just a few ponds are messing up the works.
Can you use this cement based stuff on a foam roof or do I have to use a special product made for a foam roof only?
so basically, you just add more weight to the pond. lol
Can I apply this over flat asphalt? I have a little valley type area that is ponding on my flat roof, I patched it with leak stopper and would to build it up more. So I guess my question is can this go over patched areas as well?
It should work fine on that type of a situation.
I think there's a specific product to go on to of asphalt
I am trying to repair my previously GACO silicone coated roof. It was applied over a tar coated roof that probably didn’t age enough. I’ve had many bubbles under silicone that I had to cut out and remove. If I patch all puddle areas with this cement material, shall I reapply a coat of Gaco silicone over entire roof again or will RoofSlope cement be enough! That silicone coating is quite expensive. 🥴
I had one roofer offer to use that silicone stuff - I am not big on it (but that's another story). I don't think roofslope will help you much when the problem appears deeper. I am going to get TPO installed over my roof eventually (over a duckboard base) so I don't have to coat....but I think spending good money after bad on silicone is not ideal.....for what it is worth.
So the answer to it is no.
So I want to give some insight as to why you have issues. So Silicone based coatings, such as GACO, do not properly stick to bitumen based roofs (Asphalt/coal/tar/etc). They actually are non-compatible, and result it bubbles, cracks, and eventual delamination.
Unfortunately, the product used in the above video is also non-compatible with roofing of nearly any type. It can rot out the majority of roofs, creating a lot more damages.
I did my whole roof with asphalt emulsion an elastomeric white coating with polyester fleece I need help water for a year pretty good but it's separated from the old spudded tar big bubbles i just did tpo over it and its good now i got a cheap tpo gun on ebay for 75 bucks and a roll of tpo for 540 and a bucket of glue for 120
@@RoofingFacts so what is a good solution if neither silicon or the roof slope product is ideal?
on silicone clean roof very well soapy water hose and brush spend the money and get the primmer then apply topcoat will extend the life of roof by at least 10 years @@RoofingFacts
Where can I buy Roof slope in the Philadelphia area ? I called or went to a number of roofing supply stores and none had it
Can this be used on a balcony with asphalt roofing?
I'd put a rubber mat of some kind over it to spread out the load, etc.
I leave in South Florida
Do they deliver it?
Can this be put over shingles or do they need to be removed?
no way
is this materials waterproofing
Where can you get roof slope cement
where did you buy roofslope cement?
I found it at a roofing supply in Sarasota or Brandenton, FL - I may have emailed the company or looked at their list of distributors. Maybe RSG roof supply
can it be coated with bitumen after dry
Yes, you can use most roofing products to coat it once it is dry. Aluminum roof coating or elastomer or various other products.
What does a bag of Roof Slope cost ???
5 gal bucket - you need to mix it. Looks like about $80.
If you find a roofing supply near you that stocks it (you can check with the maker), it may be less.
I seem to remember paying about $65.
builderswarehouse.com/pli-dek-roofslope-auxiliary-sloping-compound-dp-mix.html
Who manufactures roof slope ? Do they have a web site.?
There are various makers - I got mine at a roof supply house after I found them as a distributor - but there are other makers of similar products - if you google roof pond repair - roofslope.com/distributors/
Hello brother
Ok
Would self leveling mortar you use to level a concrete floor before doing tile do the same thing?
maybe in a pinch, but this is designed for the outdoor conditions - differently formulated. But I suppose some floor level thinnest with lots of latex additives might do if nothing else was available Some people just build up a couple layers of heavy tar paper and coating and then use mesh and roof cement and perhaps gravel on top.
Where’s the link?
roofslope.com/wp-content/uploads/2016/05/RoofSlope_Secondary_Sales_sheet_Final.pdf
Is the cement heavy for the roof ?
This is designed to be used in fairly thin layers - for all my different patching I may have used 60 pounds of it - so, no, that's not any additional load worth worrying about.
Does it need asphalt primer?
No primers needed - it has very stick additives.