Search: Posts Made By: NJT
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Replies: 16
Views: 3,976
Posted By NJT

It's not really possible to tell from that...

It's not really possible to tell from that example picture whether or not there is perimeter insulation creating a 'thermal break' from the footing... there SHOULD be.

With a proper thermal break...
Replies: 16
Views: 3,976
Posted By NJT

I don't think you want 'plenty of depth' with the...

I don't think you want 'plenty of depth' with the PEX! My understanding is that you want the PEX within 2" of the surface. Someone will correct me if I'm wrong I hope.

My reasoning for this is...
Replies: 16
Views: 3,976
Posted By NJT

I don't know that it's so much the thickness of...

I don't know that it's so much the thickness of the pour but the rebar that prevents the cracking.

Was that his reasoning? That a thicker slab will prevent cracking?
Replies: 16
Views: 3,976
Posted By NJT

As I recall from a previous thread, this slab is...

As I recall from a previous thread, this slab is basement, not a slab on grade as shown in the pic... that pic was for illustration purposes to show the 'chairs' that the rebar sets on.

Here's the...
Replies: 16
Views: 3,976
Posted By NJT

What are you saying Who? Skimp on the...

What are you saying Who? Skimp on the insulation? or add more?
Replies: 16
Views: 3,976
Posted By NJT

To prevent a defect that you don't have to call a...

To prevent a defect that you don't have to call a 'custom feature'... like my new sidewalk... I tell everyone that I paid extra for the 'fish scale' look.
Replies: 16
Views: 3,976
Posted By NJT

No, not really, but they shouldn't have to. They...

No, not really, but they shouldn't have to. They should have tools (floats and such) with long handles that they can reach from the sides.

If your contractor is worth his salt, he should know...
Replies: 16
Views: 3,976
Posted By NJT

Probably should also be a vapor barrier... unless...

Probably should also be a vapor barrier... unless there is NO chance of water wicking up into the concrete.

Contractor is not aware of the 'chairs' that are used to support rebar above the bottom?...
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