No home can be built without a quality foundation. But it happens that the soils on the site are too unstable, and therefore it is simply impossible to fill in the classic tape or even monolithic base.
In such cases, screw piles can be an excellent solution , reviews of which we will consider today.
What it is?
Before we talk about positive and negative reviews about this technology, it would not hurt to find out about the essence. So, the foundations on screw piles in essence resemble a sort of “hut with legs”. Special piles of high-quality steel grades are screwed into the ground, on which a grillage is mounted on top. In some cases, the house is put right on them.
This property implies the first positive aspect that distinguishes screw piles: reviews indicate that it takes very little time to install such a base. In any case, it is incommensurably less than such an operation would take if you were to fill in a monolithic foundation.
What houses can be put on them?
Unfortunately, they also have their drawbacks. First of all, experts still do not advise building “palaces” on them, since the bearing capacity of piles may not cope with such a mass. In this regard, I would like to say that most of the negative reviews are connected precisely with the fact that homeowners did not listen to the recommendations of construction companies.
This is especially true of cases of construction on unstable soils: screw piles, reviews of which are very contradictory, still can not be compared with a monolithic concrete pillow. It is best to put small country cottages or even baths on them.
Installation conditions
It should be noted that some of the negative opinions still have a real basis. First of all, this applies to the used construction equipment.
If you are going to build something big enough, you will have to order massive piles. They are not only difficult to drive if the road to the construction site is blurred, but also not easy to screw into the ground. For this, powerful construction equipment is used, the rental cost of which can hardly be called low.
However, it is not so much the screw piles themselves that are to blame, the reviews of which we are considering, how many gullible customers and cunning builders.
The latter love to talk about the speed of installation and other positive things, forgetting to mention the need for a normal access road, the presence of an electric network of at least 5 kVA (for welding), as well as enough water to
fill the concrete base.
Agree that when concluding an agreement with a normal company, you definitely will not have such problems.
Work errors
Drive away workers of that company who begin to manually dig pits for screw piles! Responses of the owners of such "long-term construction" indicate that it turns out complete nonsense. We remind technology: the base is screwed (!) Into the ground, which ensures the stability of the finished building. If you dig holes under them manually, screw and unscrew the rods several times, then nothing good will come of it!
Now let's talk about the financial side of the issue. Three or four screw piles for the foundation, the price of which will be about 1600 rubles per piece (89mm diameter), will not cause serious damage to your budget.