Hello!
I'm considering extending the garage by 2.5 meters and using a couple of meters of the existing garage to create a small guest apartment. In that case, it will be a new slab on grade against the old crawl space with a concrete framework. My initial thought is to create an expansion joint between the foundations and do a very serious groundwork under the new slab.
Now to the question: do you think it would work to run new heating coils over the joint/expansion joint? How much movement can such coils absorb and withstand? I'm leaning towards electric coils.
To avoid raising the floor too much compared to the current level in the garage, I'm considering embedding the electric coil in as thin a layer as possible.
I'm considering extending the garage by 2.5 meters and using a couple of meters of the existing garage to create a small guest apartment. In that case, it will be a new slab on grade against the old crawl space with a concrete framework. My initial thought is to create an expansion joint between the foundations and do a very serious groundwork under the new slab.
Now to the question: do you think it would work to run new heating coils over the joint/expansion joint? How much movement can such coils absorb and withstand? I'm leaning towards electric coils.
To avoid raising the floor too much compared to the current level in the garage, I'm considering embedding the electric coil in as thin a layer as possible.
A prerequisite is that you can anchor the new part to the old one, there might be movements between them that could tear an V-cable, they can't withstand much pulling. Why not lay a new one just for the extension, if you are going to lay a new one in the old part, make it its own and just connect them electrically.