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 09:30@Joedreck
This is not primarily about the financial aspect.
The idea was to avoid cutting rafters, etc., and just distribute everything evenly to have a continuous, clean top layer. Relatively simple, quick, and also cost-effective.
What speaks against pouring concrete or screed on top of the polystyrene?
This is not primarily about the financial aspect.
The idea was to avoid cutting rafters, etc., and just distribute everything evenly to have a continuous, clean top layer. Relatively simple, quick, and also cost-effective.
What speaks against pouring concrete or screed on top of the polystyrene?
There is also moisture in the concrete ceiling. Likewise, moisture seeps upwards from the upper floor through the concrete. It then reaches an airtight space, condenses, and creates ideal conditions for mold growth.
If you want the attic to be accessible, it will either cost money or require a lot of work. Usually, cheap and good solutions don’t go together.
If you want the attic to be accessible, it will either cost money or require a lot of work. Usually, cheap and good solutions don’t go together.
Z
Zigenpeter867 Jul 2020 09:39How long would it approximately take for most of it to dry out?
Would you pour the top layer of concrete and then leave it open, or once the roof is on, place a dryer inside to ensure everything dries thoroughly?
Or possibly lay exposed aggregate concrete slabs on top of the insulation board (expanded polystyrene).
Would you pour the top layer of concrete and then leave it open, or once the roof is on, place a dryer inside to ensure everything dries thoroughly?
Or possibly lay exposed aggregate concrete slabs on top of the insulation board (expanded polystyrene).
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