Hardwood Floor Refinishing

Floor installation, Floor repair

Category : General info

Sawdust is flammable.

The reason I’m writing this article is because a lot of homeowners don’t know how flammable the sawdust is.When the floors get sanded a lot of it is created and in most cases all of it goes into the trash bag.In many cases people want to leave it inside the house or garage, until the garbage pickup day comes and the bag will be taken care of.

What homeowners don’t realize is that this stuff can catch a fire in no time and as a result the house will be burned down.A couple of friends of mine told me some interesting stories about the sawdust.One was going to throw a trash bag in the city dump, so he put it inside his truck, but he was going to run some errands first, so left it there for a few hours. The day was pretty hot, so the dust started to burn and he didn’t realize what’s going on until he looked back.Another friend told me that the same thing happened to him, the only difference was  that the trash bag was outside in his yard.

But by just putting the sawdust outside your house you won’t solve the problem.Somebody could throw a cigarette butt at it and again it’s going to catch a fire.It is recommended that the the bag with the dust should be placed outside the house at least 4-5 feet away from any building.

Remember, the flooring contractors insurance is very high and it is mainly because a lot of houses were burned down over the years and one of the main reasons of fire is a sawdust.

People ask the question about when can they move the furniture back a lot, so here is the answer.

After your floor has been installed, if it is a prefinished type obviously, you can move back in pretty much right away: finish was applied on this wood a while ago, so it had plenty of time to cure even before you bought it.

After the floor just been refinished, the manufacturers of polyurethane normally recommend to wait a week before putting the furniture back on the floor. If it would be my floor, I would probably wait 2 days and then moved back in. The reason is simple: they say that in the first 24 hrs., polyurethane is 40% cure(it is good to walk on the next day for the oil-based and the same day for the water-based products), and then it is an additional 10% per day, so unless you have something really heavy(tables,chairs and beds are fine),you’re good to go 48 hrs after the job was done.

Just one thing to remember: do not drag, or roll your stuff across the floor(this happens a lot when the kitchen floor is getting done, normally with the fridges): you are going to leave huge gouges, which means that you’re going to re-sand your floor again, because this is the only way to get rid of them.

Applying polyurethane (low-VOC)

 Some of us do and the others don’t know that since the 1st of July, 2009 there are new polyurethane rules. Basically, you cannot buy high VOC polyurethane in gallons, or five gallon cans. The only way to purchase it is if you will buy the poly in quarts(kinda stupid, isn’t it?).

“So what?”-some of you will ask-”I don’t even know what the hell is high VOC poly anyway”

For those of you, who doesn’t know that: high VOC polyurethane, is the oil-based type, that have been used by everybody to coat the floor for decades.Yes, it does smell, but at least you were able to apply it seamlessly and it dried within the reasonable time (overnight).

What we have now, that looks the same as the old stuff, is low VOC poly, which is a total disaster.It leaves the brush marks and dries for days, or in some cases- weeks. If you don’t want to end up with the project that will need to be done all over again, you should avoid the low VOC polyurethane.

Remeber: the good stuff is in quarts now. If you want an oil based poly on your floors, buy that.Your other option is water-based, which a lot of people started to use now for their floor refinishing projects.

Avoid buying oil-based poly in gallons, and don’t forget to ask the assosiate in the store what kind of stuff is it.

In case you bought low_VOC polyurethane, here are some things that you should know.

1.You only need 2 coats to finish this project (altough these coats will dry forever).

2.This poly is thick and dries very quick on the surface, so avoid applying it in the large areas: do a little bit at a time.

3. The best way to apply it is with the applicator: lambs wool or Padco Nyfloam Coater Refill (you will never find this type in the Home Depot or Lowe’s, so look somewhere else) are the best. That way you won’t leave the brushmarks.

4.Before you will move the furniture back in the room, make sure the floor is totally dry: with low VOC poly it might look dry, but when you will rub your finger on the floor, you’ll feel how gummy the poly is.If this happens- wait longer.

5.You actually can apply high VOC poly over the low VOC- nothing bad is going to happen: trust me, we tried it.

Now about the brands: there is no such a thing as a good low-VOC poly: it’s all terrible, so if you decided to buy some, choose any brand and good luck with application.

If you happen to have any questions about this type of poly, feel free to contact us.

Applying polyurethane (water-based)

“How many coats of poly should I put on my floor?” I’ve heard this question quite a few times, so let’s talk about it.

There are three types of polyurethane available if you decided to coat your floors: water-based, oil-based and introducing (unfortunately)- low VOC oil-based poly.Oh, almost forgot: there is one more type of poly available.It’s not that popular, since it’s more expensive( around $120 a gallon) and tough to get(I only know 2 places in Southern New England that sell it), but yet one of the most durable and long lasting types of poly: moisture cure. Let’s take a quick look at all of them.

 Water-based poly. Regular amount of coats – 4.When we apply it, we normally put down a coat of Dual purpose Lenmar sealer to give it an amber look and apply 3 coats of poly on top of that.We do this because water-based poly is not that thick, so we need to do a little build up for it to look solid.I have to mention, thought, that you can actually get away with a coat of sealer and 2 coats of good water-based polyurethane if you’re working in the rooms that don’t get heavy amount of traffic, such as bedrooms. The brand that I personally like the most is Eukula.In my earlier post I mentioned that you can see the difference between oil- and water-based poly because of it’s look(water-based doesn’t have as rich amber look as oil-based poly has), well with this polyurethane it’s almost impossible to tell the difference. It comes in one- or two component finishes. They say, that two component finish is harder ( component1: actual poly, component 2: hardener), but one component finish is hard as hell too. I would recommend to use it in residential projects and use a two component in commercial ones. The main advantage of Eukula is that you can add up to 12 Oz. of water (believe it or not) into it without having to  worry about the quality of the finish.  This makes it dry a little bit slower , giving you time to come back and fix whatever you need, not to mention that you won’t have any ugly looking brush marks that normally there when you work with water-based polyurethane. Eukula is the ONLY brand that allows you to add water.

Now the price. Comparing to other brands, such as Bona, or Duraseal, one component Eukula cost the same or even less. Averge price for it is about $45 a gallon. In comparison: good type of Duraseal( which is not as good as Eukula anyway) cost about the same, and Bona(the 2nd best after Eukula in my opinion) cost even more- around $80 a gallon.Two component Eukula cost is around $90 a gallon.

Next time we’ll take a closer look at oil-based poly.

P.S. If you have any suggestions for topics to disscuss, please feel free to contact us.

Getting your house ready for the floor guys.

A lot of homeowners ask me about what should they do to make a space ready for the floor guys, so I decided to write about it.

Well, first and foremost: move everything from the floor that will be sanded: there is no way for the floor guys to work around the furnite, not to mention that it’s going to be all dusty once they are done. If you will get the floors done in the closet, please clean it up completely: the clothes that are hanging are not going to be on the way, but more then likely you will have to wash them afterwards, since they will be very dusty.If there is no way for you to move the clothing, at least make sure that it’s covered with plastic.This also applies to the pictures on the wall and the curtains.Pay very close attention to the electronics, such as TV’s and phones: dust is a killer to them.

When the floor guys show up, make sure they seal the areas that they are not working in and put the plastic in the door frames and over the kitchen cabinets (very important when you do the kitchen).

After the job is done, you should expect some minor dust in the rooms that have been done, but everything outside the working space should remain completely dustless.Follow these easy steps and you will save yourself a lot of time cleaning the house after the floors are done.