Hello everyone,
The construction is gradually taking shape, and the upper floor is now complete. The next step is insulating the top floor ceiling.
The attic will only be used for storage and will not be heated or insulated.
The plan is to build a course of bricks on the floor slab about 25 cm (10 inches) high, line the interior with two layers of 10 cm (4 inches) EPS foam boards with a thermal conductivity of 0.035 W/mK, and then pour a 5 cm (2 inches) clean concrete screed on top.
Is this the right choice of materials, or are there significant differences I should be aware of?
The roof structure itself will be covered with 18 mm (0.7 inches) boards and sealed with a membrane.
Does anyone have other suggestions?
Thanks a lot.
The construction is gradually taking shape, and the upper floor is now complete. The next step is insulating the top floor ceiling.
The attic will only be used for storage and will not be heated or insulated.
The plan is to build a course of bricks on the floor slab about 25 cm (10 inches) high, line the interior with two layers of 10 cm (4 inches) EPS foam boards with a thermal conductivity of 0.035 W/mK, and then pour a 5 cm (2 inches) clean concrete screed on top.
Is this the right choice of materials, or are there significant differences I should be aware of?
The roof structure itself will be covered with 18 mm (0.7 inches) boards and sealed with a membrane.
Does anyone have other suggestions?
Thanks a lot.
Z
Zigenpeter867 Jul 2020 10:27Ok, so should I always include a slight ventilation gap there?
A
Alessandro7 Jul 2020 11:20I don’t understand the purpose of this project, unfortunately. What speaks against using polystyrene foam with chipboard panels on top for walking on? I have never heard of embedding it in concrete before...
N
nordanney7 Jul 2020 11:21Zigenpeter86 schrieb:
What speaks against putting concrete or screed on the Styrofoam?It’s too complex and expensive. Simply lay a walkable composite panel on the concrete floor. Pay attention to the insulation thickness and comply with the energy saving regulations. A vapor retarder or vapor barrier is not required here (as long as it is truly plain concrete). Leave the attic open otherwise, do not glue or seal anything to the rafters, proper ventilation is essential.
It can be done quickly and works well.
Z
Zigenpeter867 Jul 2020 11:25Ok, thank you.
I will discuss with an insulation specialist and a carpenter to see what makes sense. I don’t want any shoddy work here.
I will discuss with an insulation specialist and a carpenter to see what makes sense. I don’t want any shoddy work here.
Z
Zigenpeter867 Jul 2020 11:26@Alessandro The concreting was suggested by the builder. The mass is supposed to help keep the heat out better during summer.