Mineral wool 032: insulation at a high level


For mineral wool 032, the numerical value indicates the so-called heat conduction group. The lower this value, the higher the insulation effect. With WLG 032, the highest commercially available insulating effect in mineral wool is generally achieved. What else you need to know about this product group, you can read here. You will also find additional links and current offers.

Background information

For the heat conduction groups, the lower the value, the higher the insulation effect. Heat transfer groups apply equally to both rock wool and glass wool - the term mineral wool always refers to both product groups.

In addition to the pure insulation effect, it also depends on the acoustic insulation - here rock wool is usually significantly superior to the cheaper glass wool at the same thickness. The refractoriness of rock wool with up to 1,000° C temperature resistance is almost half that of glass wool. But rock wool is also much heavier than glass wool.

Current offers (as of: 2013)

clamping felt
WLG 035bausep.de3,87 EUR / m²
WLG 032isover.de4,25 EUR / m²
Cavity wall insulation insulation boards
WLG 035 from Ursaeu-baustoffhandel.de3,47 EUR / m²
MW cover skirt 036hoba-baustoffe.com6,40 EUR / m²

What to look for when buying? / Recommendations

When deciding whether to use rock wool or glass wool, there are two criteria to consider: Rock wool is generally very heavy, so the load on individual parts is much higher than that of glass wool. Wherever high fire resistance is required, however, rock wool is always preferable to glass wool. However, there are no differences in terms of heat insulating properties - both mineral wool types are available in all heat conduction groups between 040 and 032.

Plan insulation correctly

How much insulation is required for the core or roof insulation is always decided individually. In the absence of forced ventilation, over-insulation can in some cases even lead to moisture and mildew - so you can certainly do too much for the good. As a rule, experts, such as architects or civil engineers, after an appraisal of the actually meaningful extent of the insulation provide information. This not only saves costs, but also prevents possible damage due to extensive insulation.
Mineral wool 032: insulation at a high level

FAQ - 💬

❓ Is DriTherm 32 or 37 better?

👉 Knauf DriTherm 37 With a thermal conductivity value of 0.037 W/mK, these slabs are less thermally efficient than DriTherm 32 cavity slabs, however, they can still be used in buildings that are up to 12m high due to their A1 (non-combustible) rating on the Euroclass scale.

❓ What is the U value of DriTherm 32?

👉 0.19 W/m²KThe demand for this product is already high especially in New Build Housing where walls insulated using this product will achieve a U-value of 0.19 W/m²K with any 100mm Concrete Block and 0.18 W/m²K with a wide range of 100mm lightweight aggregate blocks¹.

❓ What is DriTherm insulation?

👉 Description. DriTherm® Cavity Slab 32 is a water-repellent Glass Mineral Wool slab, designed for use in external full-fill masonry cavity walls, that offers the best thermal performance in the range.

❓ Can you use Rockwool for cavity wall insulation?

👉 ROCKWOOL cavity wall insulation offers an excellent fit, by taking up irregularities within the wall construction, as well as knitting tightly together at the joints, reducing heat loss that can occur through gaps in the insulation layer.

❓ Is DriTherm 37 good?

👉 They are excellent for conventional upright wall tie spacings, ensuring a secure joint with adjoining slabs. These Knauf DriTherm Cavity Slabs are an excellent addition in structures up to 12m high in any exposure zone and multi-storey uses up to 25m.

❓ How do you insulate cavity walls?

👉 Many cavity walls can be insulated by injecting insulation material into the cavity from the outside. A specialist company will drill holes in the outside walls, inject insulation through the holes and then seal them with cement.

❓ What is the U-value of mineral wool?

👉 around 0.24One of the most effective insulation options is to use mineral wool in combination with multifoil. 120mm of mineral wool on its own may give a U-value of around 0.24.

❓ Is a higher or lower U-value better?

👉 A U-value value shows, in units of W/m²K, the ability of an element to transmit heat from a warm space to a cold space in a building, and vice versa. The lower the U-value, the better insulated the building element.

❓ Do you insulate a stud wall?

👉 FAQs. Should stud walls be insulated? Yes, insulating a stud wall helps reduce sound transfer and improve the fire safety properties of the room and building. It will improve thermal performance where required too.

❓ What are the disadvantages of rockwool?

👉 The only disadvantages of Rockwool are that it is not biodegradable and can be slightly more expensive than similar insulating materials like fiberglass and cellulose.

❓ Do you need a vapor barrier with mineral wool insulation?

👉 Because of its greater density and water resistant properties, mineral wool acts as a vapor barrier and, unlike fiberglass, does not need an additional vapor barrier to be effective.

❓ How to choose the right mineral wool for insulation?

👉 How to Choose the Right Mineral Wool for Insulation From the tests conducted it is clearly noticeable that glass wool, which is typically made from molten glass, is not able to withstand high temperatures. When exposed to temperatures beyond 650°C, it appears that glass wool shrinks tremendously,

❓ What is the lambda value of mineral wool?

👉 As mineral wool can hold much air thanks to its open fibre structure, it is an excellent insulator. The lambda value of this insulation type is 0.03 W/mK to 0.04 W/mK. Both glass wool and rock wool are not prone to thermal ageing. This means that the product will retain the same insulation capacity during the entire lifetime of the building.

❓ What is the temperature of mineral wool?

👉 1500°C. Basalt, dolomite and coke are automatically fed from the top of a cupola furnace. The melt runs out of the bottom of the furnace and onto a machine, where wool is literally spun. 21 How to Choose the Right Mineral Wool for Insulation

❓ Why is it important for mineral wool to have a low absorption?

👉 It is important for mineral wool to have a low water absorption rate, to ensure that it does not contain excessive moisture or water that may cause risks and /or damage to the building. For example, when building elements such as the roof system suffers from a leakage, the insulation material in the roof system will


Video Board: Knauf Insulation TS: Mineral Wool with ECOSE® Technology