Foundation

Foundation insulation is an element that absolutely must be made. This applies to any type of architectural structure that is built in the traditional manner. That is, walls erected on a pre-poured foundation. Foundation insulation is the protection of concrete elements which, due to their location in the ground, are particularly vulnerable to water penetration.

Foundation waterproofing requires that the highest quality materials are used. Any weakness in the foundation structure can lead to cracks appearing in the walls.

How do you make solid foundation insulation or what do you do if a contractor forgot about it when building a house?

There are several options and each of them requires a lot of work and care. WB Duo Flex is a material primarily designed for this type of repair. Its high elasticity makes it a highly effective material. What is important is that it is environmentally friendly and thus ahead of bituminous compounds. Therefore, it is also possible to insulating the foundations of an old house.

In order to do this solidly, a few rules need to be followed.

What it looks like step-by-step foundation insulation? The most important of these is to clean the substrate and apply a levelling layer for joints between the blocks as well as gaps and cavities in the concrete. An even surface makes it possible to accurately apply the insulation without the danger of overlooking places where leakage can later occur. WB Flex Glue is best used for this. After the glue has dried, the first layer of WB Duo Flex is applied. When it sets, we paste WB Tape Pro into corners, installation passages and connections of the window frame with the wall. After application of WB TAPE PRO we can apply the second layer of insulation WB Duo Flex. Remember that the insulation of the foundation must be made of XPS type material, which thanks to its structure does not absorb moisture and thus maintains its thermal parameters.

Sequence of foundation insulation work:

• clean and smooth the wall structure with WB Flex Glue
• Apply first layer of WB Duo Flex
• paste WB Tape Pro
• Apply a second layer of WB Duo Flex

Materials needed:

• Waterproofing WB Duo Flex 10 kg or 20 kg
• WB Tape Pro
• WB Primer

Material consumption in the foundation insulation process:

• Waterproofing WB Duo Flex 20 kg - sufficient for 13 to 15 m2

Remember!
If you are not sure how much foundation material you need, you can always use our help. Write or call our technical department.

It is often the case that architects and contractors prefer to use thicker coatings for waterproofing. In this case, we recommend our product WB Bitumen KMB 2C