Base hearth

[Yukster]

Im due to have a wood stove installed in my fireplace. The person doing the site visit thought that the base hearth is damp and suggested redo it. I have never done it before so I'd appreciate some advice. THe way i thought of doing it is to dig up the cracked top portion of the hearth, lay a DMP and recast the hearth. Is that the way to do this? What's the sand/cement ration for this kinda job

Untitled

• Yukster
• 7 Jun 2014
• 1

 

[Deluks]

Could it be just rain coming down the chimney?

 

[Deluks]

Could it be just rain coming down the chimney?

 

[Deluks]

8)

 

[Yukster]

Could it be just rain coming down the chimney?

Nope! It's probably because they didn't damp proof it. Any tips about how to relay the new hearth?

 

[lee666]

What kind of damp proofing are you thinking of using as the hearth you have is a constructional hearth and it needs to be a minimum of 125mm thick (off the top of my head), and if the damp proof is possibly flammable then I guess it would be a no-no to have it sandwiched in between.

Is there any chance you could remove the old hearth and lay the damp proof lower down?

 

[Yukster]

What kind of damp proofing are you thinking of using as the hearth you have is a constructional hearth and it needs to be a minimum of 125mm thick (off the top of my head), and if the damp proof is possibly flammable then I guess it would be a no-no to have it sandwiched in between.

Is there any chance you could remove the old hearth and lay the damp proof lower down?

Yes. I thought of removing as much of the existing constructional hearth as can, layi down DPM and recasting new concrete on top of it (level it with the wooden floor). Or should i forget the DPM and add a waterproofer e.g. like http://www.screwfix.com/p/sika-1-waterproofer-5ltr/34457 What would you advise?