Should I Seal My Concrete or Asphalt Driveway?

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mike

Subject: Sealing the roads

After reading some concerns about sealing or not especially that there is an comparison to the roads not sealed this is my take on it
1)Roads are not sealed because it will be way to expensive
2) Roads are not sealed because who cares about an cracks on the road?
3)Who cares about the stains on the road?
4)Only necessary factors like an holes,large cracks are fixed
5)Roads my be discoloured big deal!
Now,of course sealing protects the asphalt.It acts similar way like waxed floor.It protects the floors,it protects the asphalt which ultimately last longer
It needs to be oil based sealer.The same component which is included in the asphalt itself
I say needs to be sealed at least every two years as naturally the sealer worn out but the asphalt is that way protected

kim

Subject: Oil based sealcoat

My husband has been in the business for close to 25 years there is no such thing as oil based Sealcoat that's the Gypsy way not the correct way look it up smh never top,sealmaster,gem sealer,all water based and the best on the market!!!

J K

Subject: Concrete sealing and asphalt

Concrete sealing and asphalt sealing are two different things, however there are some principles that are common to both.

Asphalt sealing with coal tar sealants is generally not a good thing, even though the industry promotes it for obvious reasons. Coal tar sealants inhibit the ability for the surface to expand and contract. Where there is freeze thaw weather and water infiltrates the road bed, the sealant can trap water under the asphalt, freezing weather creates ice in the asphalt that causes the asphalt and sealant to crack and degenerate. That is what "Bill" is referring to.

GPav

Subject: Pitting is a good reason to seal

In Florida, mold is a real problem on driveways without direct sun light. Our driveway was poured in 1984, the surface has become "pitted" for lack of the correct term, but i think you get my point. By sealing my concrete, frequency and the amount of time to pressure washing has been greatly reduced as the mold and dirt is not anchored via the pitting. No lack of "friction" here, no snow! :)

So there you have it, at least 1 good reason to seal/resurface your driveway. Worked for me.

Home Owner

Subject: Why?

My question is....why are people sealing driveways when no one is sealing the streets. Yes...I know the cost of sealing streets would be astronomical. But there are unsealed streets everywhere. Snow, salt, heavy truck traffic you name it...and for the most part, streets and/or highways just don't crumble and fall apart because they aren't sealed every 3 or 4 years. I guess you could argue that streets have a thicker layer of blacktop than most driveways. But then I would argue back that my driveway has nowhere near the abuse. From what I can tell, sealing is just not necessary. Even the guy who paved my driveway can't give me a straight answer on the same question presented the same way. He finally admitted it's not necessary and people do like the way it looks. But he also proceeded to call me the following year to see if I wanted him to seal it. Evidently, he forgot our conversation and was putting his money on peer pressure getting the best of me.

kyle

Subject: asphalt sealer

Over time your asphalt drive will dry out due to the elements and will turn gray. Adding a sealer is like adding lotion to your skin. It rejuvenates your asphalt and keeps it from cracking and water getting beneath the surface and eventually causing you more expensive problems in the future. The state roads don't do this because they are cheap. And only fix problems when they arrive. Also, highways are a lot thicker than your average driveway. You can do what you want, I seal my driveway. Its a 75 ft x 25ft every other yr for around 125 bucks doing it myself.

Bill

Subject: Sealing

I haven't been able to find any study from an impartial source that shows the benefits of sealing over not sealing. Anecdotally, I know several people who do not seal their driveways and their drive ways look better longer. They don't have cracks. Whereas, sealed driveways need to be resealed every few years to fix ugly cracks in the sealant. Granted, this is an extremely small sample size, so I won't cite this as proof, by any means. Here's what makes sense to me. Asphalt is porous and the stone bed underneath your asphalt will drain water away. I don't buy that freezing and thawing is that big of a deal on correctly laid driveway. This would explain why I don't see cracks in unsealed driveways. However, I do buy the argument that the asphalt will wear down under use and UV radiation. So, if you seal it every year, you will protect the driveway from this and it will not wear down as quickly. The question then becomes, "Will it cost more to seal my driveway once every 3 years or replace it after it has worn out?" Anecdotally, I've seen unsealed driveways last 30 years. If it costs $200 to seal a driveway it will cost $2000 to seal it every 3 years over 30 years. As it would cost more than this to replace a driveway, I think sealing is the right option if you are staying in that house long term. Of course, a sealed driveway is slippier in the winter. One bad fall and your doctor bills will exceed your savings. Also, in my opinion, an unsealed driveway looks better, but I'm sure some are of the opposite opinion.

Aric Yesel

Subject: Just to let u know highways

Just to let u know highways and streets are seal coated. They use different types of sealing such as chip seal which is a asphalt and rock application im sure you have seen it. Thats where annoying rocks come from that crack your windshield. Other types are called micro resurfacing or slurry seal, that is similar to drive way sealer except it has a lot more fillers and hardeners and goes down thicker. They use these on highways and street cause they do have way more abuse and traffic.

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I am facing just such a project and have received a number of bids (all from Angie's List reviewed contractors). The lowest bid was a bit over $5/sq ft and the highest was about $9/sq/ft for my 630 sq ft driveway in Rockford, IL. 
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Generally about $1-3/SF (note - measured by SF, not SY) - $1 range is for a 1 to 1/2-2 inch overlay, $2.50-3.00 range normal for two 2" layers for a new driveway or a rebuild (remove and replace) you really want to last.

Most people pay around $2/SF for a 2-3" thickness.

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If the state requires a contractor's license, then he needs to have a license in each state he intends to work in - plus state/local business licenses as applicable.

 

This does not mean there are not a lot of contractors who cross state lines without proper licensing - the penalties in may cases are not real severe and are just a fine, not criminal, so many take the chance.

 

As you say - argh  - many contractors are not really businessmen and have zero legal education, so many people get burned.