Insulation and preservation of a pile-grillage foundation for the winter

Construction projects can be difficult during the winter, particularly those involving foundations. Frost heave and freezing temperatures can cause significant damage to the pile-grillage foundation. It’s critical to properly preserve and insulate your foundation before the onset of cold weather to guarantee its longevity and stability.

Spending a little time to insulate your pile-grillage foundation will save expensive repairs and preserve the building’s structural integrity. By preventing the ground surrounding the piles from freezing, proper insulation lowers the possibility of frost heave, which can cause the foundation to shift or crack.

A pile-grillage foundation can be effectively insulated and safeguarded using a number of techniques. These include coating the foundation surfaces with weatherproofing materials, putting in ground covers to keep heat in, and using insulation materials like foam boards. Every approach has benefits, and the optimal option will rely on your unique requirements as well as the climate where you live.

We will go into more detail about these techniques in the upcoming sections, along with step-by-step instructions and advice to help you get your pile-grillage foundation ready for winter. These instructions will assist you in protecting your foundation from the severe winter weather, regardless of your level of experience as a builder or do-it-yourself enthusiast.

To avoid frost damage and preserve structural integrity, a pile-grillage foundation must be properly preserved and insulated for the winter. The foundation can be shielded from freezing temperatures by using appropriate insulation techniques, such as mineral wool or foam boards, and frost heaving can be avoided by using drainage solutions to keep water from building up. Easy precautions against severe winter weather include covering exposed areas with tarps or insulated blankets. By keeping your foundation well-protected throughout the winter, you can keep your building project on schedule and budget-friendly by avoiding costly repairs.

Is it possible to make a pile foundation in winter??

Let’s start by determining if a pile foundation can be built during the winter. It is obviously impossible if we are discussing a standard concrete foundation. Even in the coldest temperatures, however, a pile-screw foundation can be installed without sacrificing its dependability or quality. In this instance, piles are concreted using dry pouring joints.

Is it necessary to insulate a pile-grillage foundation?

Now let’s examine if insulation of a pile-grillage foundation is required while it is being built. It is advisable to take this action, specifically because poor thermal and waterproofing could lead to the grillage failing and cracking during the building’s shrinkage, which would negatively impact the building’s solidity right away.

We stress again how important it is to insulate the grillage of a pile foundation when building a structure because this is the only opening in such a material.

Comfort 20 mm (extruded polystyrene foam) insulation, 20 x 585 x 1185 (10 slabs)

Insulation materials: characteristics and cost

First, get the insulation materials ready. Once you have calculated the conditions and intensity of frost and moisture penetration to the foundation, you can decide which types to select based on characteristic data.

Natural insulation

  1. Paroc Linio 80, thermal insulation boards for plaster systems. These lamellas or strips of mineral wool do not let the cold through, but in order to prevent moisture from penetrating them, you need to send additional waterproofing.
  2. ROCKWOOL LAMELLA MAT, stone wool. Does not let cold and moisture through. Very practical and easy to work with. Almost half the price of the first insulation.
  3. Steico Isorel, an ecological, natural wood fiber insulator. Just like in the first case, it retains heat well, but in order to prevent moisture from getting in, it is better to waterproof the original material in parallel. Quite budget-friendly.
  4. And also use simple sawdust, tow or plywood.

Polyurethane foam

These come in the form of synthetic foam-like slabs or cans that spray this substance. Excellent material that provides good cold protection.

Penofol

A novel product consisting of a blended raw material for films and rolls. incredibly easy to work with because it has an adhesive side. Both heat- and water-resistant.

Expanded polystyrene TechnoNIKOL XPS Technoplex 50 mm

Mineral wool

This is a fabric that resembles cotton wool and is composed of a mixture of glass, slag from blast furnaces, and rock alloys. doesn’t burn. Tolerates temperature changes with ease. outstanding heat and sound insulation.

Extruded polystyrene foam

This is basically foam plastic, but it doesn’t have many of the drawbacks. It is highly resistant to heat and effectively withstands chemical irritants. The substance is robust and long-lasting. Yes, it is a little pricey.

Expanded polystyrene (non-pressed expanded polystyrene)

The greatest insulation choice—possibly the least expensive. demonstrates excellent resistance to frost and water. Simple to set up. It is true that there is a chance of damage during installation; this needs to be considered. However, it is long-lasting.

Extruded polystyrene foam (XPS) PENOPLEX Wall 118.5×58.5cm 50mm 7 sheets

Insulation technologies

There are numerous approaches to grillage insulation; we’ll focus on the most effective ones.

Pile-grillage foundations

The purpose of this option is to provide insulation against cold and moisture for the foundation’s outer layer.

The following actions are taken in order to insulate the grillage on piles:

  1. First, bitumen. It is poured in a layer into the basement, it fills all the sides of the grillage from the outside and thereby already creates a solid safe protection for it.
  2. Next, polystyrene foam. The raw materials are glued to the flat surface of the grillage itself or bitumen, which you previously covered it with. Reliable and for many years.
  3. Be sure to "blow" everything the seams with mounting foam to block the frost"s access through them.
  4. Then it is advisable to cover the structure with a reinforcing steel mesh to protect all preliminary coatings from rodents and prepare the base for plaster.
  5. And the final stage is the plastering of the base. Do it only when the glue dries and the mesh tightens.

Pile foundation with an intermediate grillage

Install an intermediate grillage with thermal panels to insulate the foundation. There is no need to bury them too deeply in the ground; instead, fasten them to the sheathing or the grillage itself.

Insulating the base of a pile-screw foundation with a high grillage

We’ll explain how to handle the pile-screw foundation’s insulation because it’s the most popular type. For this, brickwork or a wooden frame are used to create a false base.

Extruded polystyrene foam (XPS) Technoplex 120x60cm 20mm 20 sheets

Waterproofing of insulation

Since there is water in the soil everywhere, you need to keep your insulation dry, especially if you want to keep the pile-grillage foundation intact for the winter. Using insulation and sheet, spread, roll, and spray cans makes waterproofing very simple to accomplish.

You can mix them together to get a stronger result and higher indicators.

Step Description
1 Clear the foundation area of debris and vegetation.
2 Inspect and repair any damage to the foundation.
3 Install insulation boards around the foundation perimeter.
4 Seal gaps with weather-resistant foam or caulk.
5 Cover the insulation with protective wrap or tarp.
6 Ensure proper drainage to prevent water buildup.
7 Check and maintain insulation throughout the winter.

Maintaining the integrity and longevity of your pile-grillage foundation requires making sure it is adequately insulated and stored for the winter. By taking the required actions right away, you can prevent future problems like moisture damage and frost heave.

To start, insulate the foundation using the right materials to stop heat loss and shield it from freezing weather. This will lessen the possibility of frost-related damage by assisting in the maintenance of a steady temperature around the foundation.

Additionally, to prevent the accumulation of snow and ice, think about covering exposed areas with barriers. This additional barrier can stop moisture from penetrating the foundation and creating issues when the temperature changes.

Doing routine maintenance inspections during the winter will enable you to identify and resolve any problems early on. You can make sure your foundation is in good shape and ready to support your structure throughout the winter and beyond by taking proactive measures.

Video on the topic

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TISE. Preservation for the winter of pile-grillage foundation SRF.

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Andrey Ivanov

Experienced civil engineer with more than 20 years of experience. Specializing in the construction of industrial and civil facilities. Author of many publications in professional journals.

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