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Precast Insulated Walls vs ICF
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23-01-2024 11:41pm#1
Hello everyone, I'm currently grappling with the decision between ICF and Precast Insulated Panels
for the construction of my new house, particularly for external walls and floors. Although I am leaning towards precast insulated panels, I have some unresolved queries. I intend to build a two-story house with internal dimensions of 8.5m x 8.5m. The attic is envisioned to be 'habitable,' featuring a spare room and a utility room. I am contemplating raising the walls by 0.5m, essentially creating a nearly 2.5-storey structure. Additionally, I am considering a roof pitch of either 8/12 or 7/12. Here are my questions:
- Does anybody have an idea (with a large approximation) of the potential differences in cost and completion time between ICF and precast insulated walls?
- For the external rendering of precast insulated walls, is it adequate to paint the concrete, or is another type of rendering (such as stucco) necessary?
- If rendering is required, what would you pick for optimal durability and maintenance? Should a membrane be installed between the concrete and rendering to prevent trapping humidity/water?
- Concerning precast insulated walls, is rendering necessary on the interior side, or is it possible to paint the concrete directly?
- Regarding the floor, if I choose hollow core slabs, are load-bearing walls necessary on the ground floor, considering a span of 8.5m from wall to wall? Additionally, approximately how thick would the floor be?
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