Frequently Asked Questions

Here are a few of the common questions we get asked. If your question is not answered here, please do not hesitate to call us.

 

What is the best way to protect natural stone outside?

Efflorescence, which is the appearance of salts on the stone due to evaporation, is more obvious in darker products.  To help prevent this, we recommend waterproofing the material and then sealing with ‘Dry Treat Stain Proof’.

 

Is natural stone a good choice for around swimming pools?

Natural stones improve that landscaping of any swimming pool area, whilst offering durability.  The chemicals may cause limited corrosion, but as the stone used is non-slip, the effect is minimal.

 

What slab thickness should I use for external steps?

3cm slabs provide the best longevity and lessen risk of cracking through thermal changes or structural movement.  We recommend that 2cm is the narrowest thickness used externally.

 

What is the minimum joint width for tiles that you recommend, internally and externally?

We recommend no less than 2mm internally and 3-4mm externally. It is best to allow a perimeter expansion joint to minimise damage to the flooring from building movement.  Allow this width between wall and stone for items such as step treads or cappings that are single items wall to wall.

 

Is it better to screed my internal floors or use adhesive fixing?

It is best to prepare the background with a 20mm minimum thickness screed, giving a perfect level.  If this is not practical due to cost or floor level, then consider adhesive fixing.  If using fixings, have your floor carefully surveyed for high points and, if possible, grind down these points to create better levels, thus achieving a better overall finish.

 

How can I seal my internal floor?

Option one – use an impregnating sealer such as ‘Dry Treat Stain Proof’ (see ‘Maintenance’ page).

Option Two – use a Surface Sealer, such as Belinzoni RRI, which is wax based.  This, unlike option one, protects from spillages of any kind.  After initial application, put a drop in washing water every time you clean the floor to maintain it.

 

How do I lay tiles that have a mesh background?

If your tiles have a fibreglass and epoxy mesh backing, it is recommended to use ‘Davco two part rapid’ when installing.  Always check the backing before laying, in case it is loose.  If they are external tiles, removing 50% of the backing will create a better adhesion.