Model # RC905-2

Internet #202086637

Store SKU #548821

Lanco 5 Gal. Ultra-Siliconizer Roof Sealer
0718594090528

Lanco

5 Gal. Ultra-Siliconizer Roof Sealer

$89.90 /pail

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Product Overview

Lanco Roof and surface Membrane Sealant (Elastomeric Silicone - Acrylic based) for sealing surfaces in a monolithically way. Designed for concrete surfaces, metal, wood, asphalt membranes, polyurethane, EPDM and TPO. May be applied with roller, brush or spray - airless.

  • 78% Solar reflectance
  • 90% Heat reduction
  • Changes color for an easier application
  • Strong finish and high resistance to mildew and dirt
  • Can be reinforced with polyester or fiberglass mesh
  • To use with membrane primer or without it
  • Low VOC volatile organic compounds (50 g/l)
  • 100% Acrylic/silicone technology
  • Coverage: 50 sq. ft. (4.6 sq. m) per gallon (32 wet mils, 17.5 dry mils)

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17 Questions11 Answers

Customer Questions & Answers

5 Gal. Ultra-Siliconizer Roof Sealer
5 Gal. Ultra-Siliconizer Roof Sealer

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Can it be tinted?

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March 15, 2016
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July 4, 2016
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Warranty
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March 16, 2016
Answer: 
No, the sealer cannot be tinted.
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What is the coverage per bucket on flat concrete tiles?

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Miami, FL
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August 21, 2015
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Asked by
Edgewater FLorida
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Home Improvement Profile: DIYer
September 9, 2015
Answer: 
I KNOW that concrete tiles will not soak anything up (or very little). We had concrete tiles on the home I grew up in and we "white washed" them every two or three years. I wish we would have had THIS stuff! Unless you have a lot of cracks that will eat it up (and I mean a lot!), you will get at LEAST 50 sq ft per gallon, and probably more (250 sq ft+ per bucket). Someone wrote in their review they got Read More
I KNOW that concrete tiles will not soak anything up (or very little). We had concrete tiles on the home I grew up in and we "white washed" them every two or three years. I wish we would have had THIS stuff! Unless you have a lot of cracks that will eat it up (and I mean a lot!), you will get at LEAST 50 sq ft per gallon, and probably more (250 sq ft+ per bucket). Someone wrote in their review they got close to 60 (almost 300 sq ft for a 5 gal bucket on a fairly solid roofing material). This stuff is VERY thick and does not soak in unless you have a MUCH softer material like I had. They say it is designed more to adhere to materials (and it SURE does). I put it on 18 year old asphalt shingles and I got 44 sq ft per gal (220 sq ft per bucket) and I put it on thinker, intentionally, too. You will get FAR MORE, for sure, as long as you spread it out as you go and do not let it pool up in sections. Just keep rolling until it won't spread any more, then go back for some more. And MAKE SURE RAIN is not headed your way. I lost a whole bucket and 2 hours work to a FREAK morning rain shower - it got washed off into the gutter. Very depressing. Good Luck! Read Less
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August 22, 2015
Answer: 
This product covers 50 square feet per gallon in two coats.
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can i get this in clear or grey to put over my shingle roof to seal

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MIAMI
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October 2, 2016
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October 4, 2016
Answer: 
Hello John! Thank you for your recent inquiry with The Home Depot. This item is not available clear or grey. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
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How much is it

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August 10, 2016
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Asked by
Atlanta, Georgia
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August 25, 2016
Answer: 
Hi Dawm, Thank you for your recent inquiry with The Home Depot. Please reach out to your local store to determine availability and/or pricing as they vary upon location. We appreciate your business and look forward to serving you in the future.
Thank you for shopping with The Home Depot.
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Customer Reviews

Rated 4.3 out of 5 by 16 reviewers.
Rated 5.0 out of 5.0 by AWESOME Product! Works Great I installed this product in April 2015. Installation was quick and easy. Clean up was also easy and quick. I used a total of 9 five gallon buckets. How well did it work. It has been working flawlessly. It has sealed the roof well. It also prevents heat gain very well. I took Thermo pictures of the roof prior to starting and then after the two coats were applied. The results were very positive. Over a 60 degree surface temperature drop. I attached a report of the surface temperature difference. This is a very good product. I will follow up in two years. July 22, 2015
Rated 5.0 out of 5.0 by Worked extremely well for me INSTALLATION TIPS: 1950's era low-slope roof with no attic (interior ceiling is attached directly to 2x6 joists); with rolled roofing (about 10-year old roof). Took 3-hours and 3-1/2 pails to do 1200 sf first coat; 2-hours and 2-pails for second coat. Temps during application were in the 90's with direct sun, medium humidity. Rained hard 8-hours after second coat was complete - no noticeable issues. Easiest way for us to apply was to simply pour a 4-foot splash of paint, then even it out with a roller. First coat went on a bit tan. Second coat went on bright-white (not really blue as is advertised), was easy to tell what needed a second coat. Cleans up with water DID IT WORK? Like a charm. I don't have any actual before temperature readings, but there is an area of open ceiling where the heat just radiated down - roof temps had to be over 130-degrees. Now, in full midday sun, digital thermometer reads 97-degrees (ambient temperature outside was 93-degrees). So it really cut down the conductive heat. WORKS BEST FOR - low-slope roof houses; especially where there is a lot of conductive heat (meaning, where the heat is transferred by surface into the interior space - most houses have an attic with ventilation, so while this would improve the heat transfer, results would be less dramatic). Cost was around $0.50/sf plus my labor to install. I believe it will add a good 5+ years to life of roof, and pay for itself in reduced AC costs (caution - according to CRRC tests, winter-time benefits reverse, meaning you actually need a bit extra heat because the roof reflects much). May 25, 2015
Rated 1.0 out of 5.0 by Junk, will completely wash off in less than a year, will only fix leaks temporarily it is not 100% silicone, this product will not last. September 28, 2015
Rated 5.0 out of 5.0 by Definitely a company I would trust to stand behind their products… i just wanted to thank you, and especially your sales rep for services rendered. When the Lanco Ultra Siliconizer Roof sealer was applied to my sun room roof, the person walked on the roof creating a leak. Be careful when applying, not to walk on fragile roofs. It isn't like suddenly having air conditioning, but the Lanco product does seem to have noticeably lowered the temperature in the previously very hot Florida sun room, making the un-bearable bearable... so I would recommend giving it a try. Although indirectly the leak was the result of using the product, it was not the fault of the product, but Lanco not only sent a rep to look and advise me about the problem but helped me out with the expense of repair by providing a free 5 gallon replacement product. Definitely a company I would trust to stand behind their products… and I would want to do business with again! thank you again.. i look forward to a leak-proof and cooler sun room. August 13, 2015
Rated 5.0 out of 5.0 by Great Product Excellent Product. i applied a coating on my winter Home at Melbourne Beach 3 years ago and not only did it completely seal my spray foam over steel roof, but the cooling electric monthly bills became half. The only problem i am trying to resolve is how to purchase (12) 5 gal. buckets of SKU # 548821 in my local summer store #2715 in Grand Rapids, Mi. . @ under $90/ 5gal. bucket, i certainly would be the 1st. in my neighbor hood with an excellent, long lasting New Roof. i can not say enough about the inside thermal reduction after using it. Also: having the Dade County " Approval " means , It Works ! Doug B. June 9, 2014
Rated 5.0 out of 5.0 by The ONLY One for Asphalt Shingles (and GREAT at it) This was on a 3:12 Sloped Asphalt Tile Roof (18 years old). Someone already said it, but get the MOLD and lose material off of your Asphalt Tile roof. Use a bleach and water mix 10% or 15% bleach and make sure the bleach solution stays on the moldy areas long enough to KILL IT and get rid of it or it may bleed through and possibly affect adhesion. And get all loose material off. Spend several hours with a fairly stiff broom but DON'T BEND or BREAK ANY shingles/tiles (yes, I bent one and snapped it, and glued it back on with a tube of Black Jack I had on hand. Also, I missed cleaning a corner and had to stop since the roller will THROW loose tile facing (sand) in your face, on your clothes and all over everything else. I started with a tray, but DON'T BOTHER. THIS STUFF IS THICKER THAN ANY PAINT I HAVE EVER SEEN! You can't get it on fast enough and it will DRY on the roller before 5 gallons is used - even on cool mornings (I did all work on mornings right after the roof was dried but before it was too hot). I did one 5 gal bucket per morning (took me one week - hey.. I'm 60.. OK? I move slower these days). So I grabbed a 2 quart plastic pitcher and dipped it in the 5 gallon bucket and scraped the sides of the pitcher off with a small squeegee then walked over and poured is out in a line 6" wide across the top and rolled it DOWN the slope of the roof until I got to 8 feet from the bottom and turned around and poured the last lines below (near the edge) and rolled it upward making sure coverage was even and a tad thicker on the edges (I want to keep edge tiles down in the wind). It worked GREAT and I got fairly even coverage - thin enough that I need a second coat on my medium brown colored shingles (I wanted 2, and they recommend 2 anyway), but it was thick enough that the excess seeped down between the tiles for a good seal and even coloring. One of my freshly applied buckets got washed off in a FREAK Rain shower 30 minutes after I applied it. So it took 8 to do 1550 sqft instead of 7 buckets as planned (20% chance of rain my A - -!). 1550 Sq Ft - 7 buckets - 35 gallons. That is 44 sq ft/gal - a bit thicker than the 50 sqft/gal they recommend, but I suspected older shingles would take more, and some would seep and be EATEN between the tiles and I planned for it. I suspect that will even help keep the tiles down in high winds and I checked several and it DOES seep under the edges acting as an adhesive to hold them down, too (that is very good). If it rains within 1.5 to 2 hours, you are going to lose 3 of your 5 gallons into your gutters... get another bucket. I plan to do the next coat across the tiles (perpendicular to first coat) as recommended. Just this first coat literally strengthens the tiles and it does remain a bit flexible and does NOT crack when you walk on it. I am going to add 10 to 15 gallons every year after a soap and water wash down (maybe a small bit of bleach - we shall see). You will need one new 12" ROLLER for every 5 gallon bucket. You may be able to stretch it to two, but it does a number on them. This is some VERY THICK STUFF!! Get this: I can walk on my ASPHALT SHINGLE ROOF AT HIGH NOON, FULL SUN, IN MY BARE FEET! Pretty Cool, eh? (literally... ). And this too: A/C BEFORE Lanco from Noon to 4 PM: 1 HOUR ON, 10 Min OFF (yes, I said ONE HOUR ON). A/C AFTER Lanco from Noon to 4 PM:: 20 min ON, 15 min OFF. I have not seen the first electric bill yet, but that has GOT TO BE SOME BIG BUCKS! Life is good. And I KNOW I added 7 to 10 years to the life of my old roof - maybe more. Pity the roofers when this gets out... Oh..., one bad thing. Since the roof is cooler. The Birds land on it - and DECORATE all over it. But, it does wash off with the rain - unless they have eaten those purple berries. So I get a Polka Dotted roof.... a bit of mild bleach will clean it (I hope). Or maybe I need a scare crow now... FINAL THOUGHTS: HIGHLY RECOMMENDED FOR OLDER ASPHALT SHINGLE ROOFS. VERY HIGHLY!! I have also seen it after about two years on a roof of similar type, and it looks like new (they recommended it to me). Why would ANYONE leave an uncovered asphalt shingle roof with this stuff around? I'll bet it pays for itself in 2 years on just what I DON'T SEND TO FP&L each month! I should have done this 5 YEARS go... (was this stuff around 5 years ago?) September 9, 2015
Rated 5.0 out of 5.0 by Awesome Product 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. September 13, 2013
Rated 1.0 out of 5.0 by waste of money this stuff is garbage i used it on my roof used it the way the directions said to applied with a 3/4 nap roller put it on early evening had plenty time to dry rained middle of night totally washed of the roof only reminants of application is the outside edge where i ran out i wouldnt used this garbage on a dog house wasted 126 dollars. October 4, 2014
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