This product is a single component 100% acrylic silicone sealer for roofs and walls with outstanding adhesive properties that will provide a thick, high performance, water and weather resistant seal on most surfaces, usually without need of a primer coating.
(8 reviews) 8
83%of customersrecommend this product5 of 6reviews
Rating Breakdown8 reviews
83%of customersrecommend this product5 of 6reviews
I own a roofing company in the Virgin Islands and we do strictly waterproofing and minor repairs of roofs. We have been using this product for many years now and it is the only water based Acrylic product that we use. When properly applied, according to manufacturer's specs, it forms a superb waterproof membrane on your roof that does an awesome job of repelling water. Best when used on roofs with good drainage and little to no water ponding. Be sure roof is properly cleaned first in order to get a good bond.
Pros: Easy to Use, Easy to Install, Easy to Work With, Seals Well, Great Value, Easy to Clean, High Quality, Economical
6out of6found this review helpful.
Review 2 for 5-Gal. Ultra-Siliconizer Roof Sealer
Wrong specs, 300 sq. ft. coverage per bucket!
PostedOctober 24, 2011
The coverage area is not 60 sq.ft., it's actually 60-80 sq. ft. per gallon! You should be able to do about 300 sq. ft. with a 5 gal bucket. Read the PDF guidelines on Lanco's website "Apply the first coat by pouring container of Lanco® Ultra Siliconizer™ onto the roof and spreading at a rate of 2-4 gallons per 120-240 sq. ft.."
36out of36found this review helpful.
Review 3 for 5-Gal. Ultra-Siliconizer Roof Sealer
Reduced kitchen ceiling temps by over 30 degrees
PostedSeptember 12, 2011
My metal strips supporting my drop ceiling in kitchen add on to house would be too hot to touch in the afternoon even with lots of insulation. The AC Was working hard. After first thin coat applied on Labor day, the strips were only about 78 degrees when it was well over 95 degrees outside. It rained about 5 hours later and nothing leeched off the roof. Put on 2nd coat 6 days later, is so white it hurts to look at it even with dark sunglasses. No doubt that my next electric bill will be lower as it no longer runs as long to cool the house. This is over a mostly flat roof wtih a gentle slope that mostly dries quickly after a rain. Next question, should I try it on the Architectural Shingles? The light gray color is getting darker after 14 years. Would definitely help cool the attic.
I had a leak on my South Florida home where the back flat roof was 10 years old and starting to leak. I had just at 2000 square ft of flat roof. I used 7 X 5 gal buckets. The roof looks great. Reflects the sun and the interior of the house stays cool. Be sure to prep the roof. I used a stiff broom to sweep all the debris off and cleaned with a mixture of bleach and water. Allowed to dry for 2 days and then applied Ultra Siliconizer. I did 2 coats. 1 then the second 24 hours later. It looks like a new roof. Had many roofers give me quotes for a new roof at 12K. Very happy this stuff works as good as it does. I plan on re coating with 1 coat each year. Should last just about forever. All flat roofs in Florida should be coated with this stuff. But of they did the Roofers would be out a job.
Why am I so excited about this product you might ask? I live in hot, humid South Florida and our house was built in 1930. There's no attick, only wind turbines, and the roof is torch down. There is no central AC due to the lack of attick and even though the pipes could be run externally, I won't due that due to the six month hurricane seasonal stress. The entire inside of the house is cement stucco - both walls and ceiling - no dry wall! So, when it gets hot and the sun starts beating down, it turns the inside into a brick oven. The ceiling inside gets hot to the touch. I painted my roof with this product and the results were mind-blowing...I mean literally! Now, the inside ceiling is stone cold, I no longer have to run all of my window 'bangers'. The roof is so white you need a pair of sunglasses to look at it. What's really mnid-blowing (besides the extreme tempeture drop) is that the only room I didn't paint was my office which is a flat roof that occassionally puddles. The ceiling in that room still gets hot to the touch, and when you walk through the door way into the rest of the house you can immediately feel the difference! This stuff works so well, I used it also on a huge hydro NFT system I have in my yard (10' 4" pvc tubes) and the chiller no longer struggles to keep the water temp at 75! I'm completely sold on this product and have recommended it to just about everyone I talk to!
2 coats of this stuff no primer needed roofers dont want u to know about it it will waterproof ANY kind of roof even palm frawns if your in a hut
15out of15found this review helpful.
Review 7 for 5-Gal. Ultra-Siliconizer Roof Sealer
from Miramar, Florida 33027
Age Range:65 or over
Home Improvement Profile:Other
wont last more than 1 to 2 years max
PostedJanuary 14, 2014
No, I do not recommend this product.
At first, is an excellent product, it keeps temperature low (Florida clime) it seal pretty well but it won’t last more than a couple of years. With rain and Florida weather, it got washed of and it must be re-applied. I wonder if those people that gave 5 stars review, got to inspect the roof after a couple of years, particularly the roofer that, herein, gave 5 stars!
Pros: Easy to Use
Cons: must re-apply after 2 years max (south florida)
So I figured I would bite the bullet and give this product a try. There are 100 different brands and each one of them claim to be the best, but I did narrow it down to a silicone based elastomeric. Seems it has more pliability during the season changes and better reviews. I have a 400 square foot flat roof in Miami that was covered with tar about 6 months ago. To the touch in the middle of the day I could not hold my hand on it for more than 5 seconds. A 5 gallon bucket of this stuff was the perfect amount for my roof. I put it on pretty thick. The next day I climbed up there and put my hand on the roof at noon and it was just slightly warm. I am paying 8-10 dollars a day on electricity, too early to know if I will save a significant amount, but if it saves me $100 over the life of the application (5-7 years?) then I say its worth it, plus it puts an additional weather/water barrier up there so its a win/win. If you're on the fence I would go ahead and pull the trigger on this product, not disappointed with the results so far, looking forward to collecting power consumption data over the next few months. I will submit my results at that time.