The developer states this in their building specification:
17.5cm (7 inches) sand-lime brick with approximately 12-16cm (5-6 inches) external thermal insulation composite system (ETICS) with a thermal conductivity of 0.035 W/(m·K).
Is this sufficient, or is it simply the most cost-effective solution?
17.5cm (7 inches) sand-lime brick with approximately 12-16cm (5-6 inches) external thermal insulation composite system (ETICS) with a thermal conductivity of 0.035 W/(m·K).
Is this sufficient, or is it simply the most cost-effective solution?
Yes, I’m a fan of bunker-thick walls 😉
Thicker walls mean better thermal storage (although sand-lime brick is probably less critical in this regard), improved sound insulation, and fewer issues when chasing for pipes or cables (or fewer problems if these were chased incorrectly).
Thicker walls mean better thermal storage (although sand-lime brick is probably less critical in this regard), improved sound insulation, and fewer issues when chasing for pipes or cables (or fewer problems if these were chased incorrectly).
B
Bauexperte14 May 2015 10:55Hello,
Due to the high thermal conductivity of exterior walls, additional thermal insulation is essential to meet the requirements of energy efficiency regulations (building permit / planning permission).
Sand-lime bricks have a very high bulk density and are therefore very heavy. This gives them excellent properties in terms of sound insulation. As they are also highly compressive strength capable, thin, highly load-bearing walls with very effective sound insulation can be built using sand-lime bricks.
So, more isn’t always the ultimate solution 😉
**Source: my website
Regards, Bauexperte
maximax schrieb:**Heat Storage of Sand-Lime Brick[B]:**
Thicker walls mean better heat storage (although sand-lime brick is probably less critical in this regard),
Due to the high thermal conductivity of exterior walls, additional thermal insulation is essential to meet the requirements of energy efficiency regulations (building permit / planning permission).
maximax schrieb:**Sound Insulation[B]:**
better sound insulation
Sand-lime bricks have a very high bulk density and are therefore very heavy. This gives them excellent properties in terms of sound insulation. As they are also highly compressive strength capable, thin, highly load-bearing walls with very effective sound insulation can be built using sand-lime bricks.
maximax schrieb:How to properly chase is defined by technical standards and – as expected – by the relevant DIN standards.
and fewer problems when chasing for cables (or fewer problems if the chasing was done incorrectly).
So, more isn’t always the ultimate solution 😉
**Source: my website
Regards, Bauexperte
Bauexperte schrieb:
Due to the high thermal conductivity of exterior walls, additional thermal insulation is essential to meet the requirements of the energy saving regulations. I was referring to thermal storage. The more mass a building has, the longer it stays cool during a short heat period, and the longer it takes for the house to cool down if the heating fails. Of course, sand-lime brick with external thermal insulation composite system (ETICS) is generally better in this regard because almost the entire mass is insulated on the outside, whereas in a monolithic structure, almost half of the mass remains uninsulated.
How to create "chases" is defined by the technical regulations and – as usual – the DIN standards ...and which all on-site laborers and DIY builders always precisely follow in the best-case scenarios envisioned by homeowners.
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