The thermal insulation of wood wool is excellent: by nature wood offers a good thermal insulation. Heraklith offers three types of combi wood wool boards with which you can fine-tune the thermal insulation to the exact thermal requirements.
Depending on the building application it is important to choose a solution and combine the wood wool boards with either a core of rock mineral wool, grey EPS or PIR.
The RC-value is the heat resistance value of the total construction. This is a sum of all Revenue values of all materials, corrected with, among other things, the influence of thermal bridges (such as wood and metal).
RD is a declared calculation value, which is also called a Rdeclared value. The RD value indicates how great the heat resistance of the insulation material is. This RD only covers the stand-alone product. RD is indicated in the unit m2
RD [m2 K/W] = thickness [m] / λ [W/m.K]
The Rrevenue value is the calculation value of the heat resistance of each layer of which the structure is constructed, including correction factors.
The U- value (former K-value) indicaties the thermal conductivity of a construction and is the inverse of the R value (U = 1/R).
The better the insulation package, the lower the U-value.
Formula: U value = λ value / thickness insulation.
The U value expresses the amount of heat that passes per second, per m² and per degree of temperature difference between one side and the other side of a wall or ceiling construction. The U value is also called heat transfer coefficient.
The value indicates the degree of heat conduction of a wall: a high U-value means a thermally poorly insulating wall, a low U-value means a thermally well insulating wall. The unit for the U-value is W / (m² · K).
Are you looking for excellent thermal insulation with wood wool cement sheets, based on EPS insulation? Then you are at the right place at Heraklith. Our insulation experts help you choose the right wood wool products, in accordance with the fire safety requirements and acoustics of the project.
Interested in seeing how we solved the challenges for other architects and constructors? Just download our case study to learn more.
Choosing the best thermal insulation is not easy. Acoustical and fire safety-related building requirements are added to that. Do you want to know which thermal insulation material works best for your project? Feel free to contact us.