Hello everyone,
various brick manufacturers offer their products with and without mineral wool insulation.
Both types of bricks have a thermal conductivity (λR) of 0.09 W/mK.
A disadvantage of bricks without insulation is the thin webs that may break easily if handled improperly. The possible drawback of bricks with integrated insulation could be the time factor. Who knows where the insulation will be in 20 years? It might degrade over time.
But what are the specific advantages and disadvantages in a single-family house?
various brick manufacturers offer their products with and without mineral wool insulation.
Both types of bricks have a thermal conductivity (λR) of 0.09 W/mK.
A disadvantage of bricks without insulation is the thin webs that may break easily if handled improperly. The possible drawback of bricks with integrated insulation could be the time factor. Who knows where the insulation will be in 20 years? It might degrade over time.
But what are the specific advantages and disadvantages in a single-family house?
We recently faced the same question and decided against using filled Poroton bricks.
Firstly, both types have the same U-value, as you have already noticed. Secondly, if the bricks are cut or if you later want to drill a hole to hang something, the filling falls out every time. Thirdly, the unfilled bricks provide better protection against summer heat because they have more cavities and greater mass.
Our architect also advised us against the filled bricks. The additional cost does not justify the benefit. He also said that if you want insulation, it’s better to add it on the outside rather than using filled bricks. We decided against insulation entirely (except for the insulated floor slab) and still achieve at least KfW 70 standards, and we are not far from reaching KfW 55.
Firstly, both types have the same U-value, as you have already noticed. Secondly, if the bricks are cut or if you later want to drill a hole to hang something, the filling falls out every time. Thirdly, the unfilled bricks provide better protection against summer heat because they have more cavities and greater mass.
Our architect also advised us against the filled bricks. The additional cost does not justify the benefit. He also said that if you want insulation, it’s better to add it on the outside rather than using filled bricks. We decided against insulation entirely (except for the insulated floor slab) and still achieve at least KfW 70 standards, and we are not far from reaching KfW 55.
schubert7913 Aug 2014 10:17We chose the insulated brick and are very satisfied with it.
We used a 42.5 cm (17 inches) UNIPOR W08 solid planar brick. For our house, this saved us nearly 4,000 euros compared to insulated bricks, while maintaining the same thermal conductivity.
According to our masons, the brick was very easy to work with, cut, and finally install. So far, we are completely satisfied!
According to our masons, the brick was very easy to work with, cut, and finally install. So far, we are completely satisfied!
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