Concrete Floor Insulation Thickness

The floor may vary in thickness over certain parts, depending on ground conditions and the order in which the concrete slabs are laid.

Concrete floor insulation thickness. The concrete above the insulation. If the concrete is above the insulation it can sometimes store heat during the day, which helps keep the room warm at night. Insulation below the floor slab. A solid floor is typical way of constructing a solid floor for ground flooring would be to provide a base of hardcore with sand blinding material, with a layer of concrete over that.

Expol’s range of concrete floor insulation boards provides thermal insulation where it counts most. 1 to prepare for insulating the floor, first evaluate the condition of the concrete. Rockwool rigid stone wool boards used as a continuous layer of insulation under a concrete slab can provide the thermal efficiency and mechanical properties required as an alternative to rigid foam. The minimum thickness for floor insulation would be 70 mm.

We also have insulation boards suitable for more specialist flooring applications, for example heavy duty floor insulation and insulation for cellar and basement floors. A concrete floor can be termed ‘cold’, i.e. The perimeter strip is cut flush with the level of the finish floor screed and is laid butt joint over the horizontal floor insulation, forming a right angle. You can still insulate your solid floor even if it doesn’t need replacing.

Insulation is laid on the concrete and covered with a screed. Concrete placed below the insulation or ‘warm’ i.e. Also, check the floor for smoothness and level; + 353 (0)49 95 27000 info@ballytherm.ie

Ground bearing floors can include insulation either below or above the concrete slab, the choice the designer makes will have an impact on the temperatures inside the building, as follows: Up to 10% of heat loss from a building is through the concrete slab. Floating concrete slab, minimum 100mm. However, if such an upgrade is not technically or functionally feasible, the element should be upgraded to the best standard which can be achieved within a simple payback of no greater than 15 years.

In this post, i’ve got everything you need to know about concrete floor insulation. The first important thing to pay intention to is the depth of the floor slab. There are fewer restrictions on the thickness of the insulation in comparison with above slab insulation, and there is less of an issue with point loading as the load is spread over the slab rather than the insulation. If the insulation is above the concrete the room will heat up more quickly in the morning.

Floating sand/cement screed (can be heated) of minimum 75mm thickness (65mm for domestic); Designers generally insulate both directly under the slab and around the perimeter as well. K103 kooltherm can be used on both solid concrete and suspending floors. Namely, if you are only digging the slab, you will need to take into account the thickness of the insulation, since it will affect the depth of the slab.

The insulation is then laid, followed by a polythene separating layer, and either a concrete screed or tongue and groove chipboard, ready to receive the specified floor finish. Minimum flooring thickness in any residential building. Before you lay your concrete floor, you’ll need to take a few things into consideration, the first of which will be your building regulations. The installation of insulation in your floor must meet the minimum energy efficiency values set out in the approved documents.

Position of the insulation within the floor structure. This stops any thermal bridging across the walls leading to cold spots. In this scenario, a rigid foam insulation is usual, and as you’d want the same u value in the roof, we need the same thickness of insulation (180mm). If the building already has air bricks, in order to ventilate existing floor voids, then ducting should be provided to allow air to pass through and into the void.

When laying a new concrete floor a 25mm thick vertical strip of insulation should be used to insulate the perimeter of the floor slab. If you know you have issues with moisture, tend to those problems before installing the insulation. We have a wide range of floor insulation boards, including solid ground floor insulation, suspended floor insulation and soffit insulation. There are three general types of ground flooring construction:

Insulation is placed below the concrete floor slab. The best insulation over concrete floor can change temperatures radically. In cold climates it is advisable to use a minimum of 2 inches of extruded polystyrene under the slab. Lightweight, rigid polyisocyanurate (pir) foam insulation boards, such as those manufactured by celotex, are among the most thermally efficient, commonly available.

How to lay concrete with insulation. You may need to grind down significantly high spots to ensure an even surface. 1) solid floor, 2) suspended timber floor and 3) suspended concrete floor. K103 premium floor insulation boards have been developed by kingspan as a premium floor insulation product, providing high performing insulation with a thinner material than was possible before.