Preparation of floorboard area for porcelain tiles - TilersForums.co.uk | Tile Forums

LisaM · 13-12-2007

Hello,

I have already received some great advice for laying 60x60 polished porcelain tiles on a patio area.

I would now like to ask if anyone could help with the kitchen and dining room query? I'm looking to lay the same tiles, inside as out with a flush threshold. At present there are floorboards. I'd like to put down underfloor heating also. What is the correct process to achieve the best results?

Thanks guys,

Lisa

uug197h · 13-12-2007

you will need to ply the floor before tiling if this lifts the floor too high then the only way is to remove the floor boards and replace with 18mm ply

LisaM · 13-12-2007

Thanks that's great.

Lisa

**brian c** · 13-12-2007

use 12mm ply to overboard floors and screw down every 300mmm with 25mm wood screws.Use rapid set flexi adhesive and grout for this job.Go to topps and pick up the free dvd on ufh.

**pjc** · 13-12-2007

Lisa 60x60 polished porcelain tiles on a patio area outside ?

**brian c** · 13-12-2007

Quote:

Originally Posted by pjc

Lisa 60x60 polished porcelain tiles on a patio area outside ?

THATS EXACTLY WHAT I THOUGHT.

LisaM · 14-12-2007

Thank you for your comments. It seems some old fashioned tilers don't like this method, but fortunately we have had some constructive and incredibly knowledgeable advice from tilers with a modern approach to design. Thank you for your incredibly helpful comments. Lisa

**brian c** · 14-12-2007

just unusual,thats all,dont call me old btw.lol.job im doing just now cant be any more modern looking,all be it its in a bathroom.POST some pics in the gallery LISA. .....BRI

14-12-2007

screw warm up insulation boards down to floor boards,then fix with 2 part flexible adhesive and flexi grout....dont put ufh onto plywood....gaz
Warmup Insulation Board

Warmup Insulation Board
Length: 1250mm
Width: 600mm
Thickness: 10mm

WARMUP INSULATION BOARD is a water resistant insulated tile backer board made of extruded polystyrene, faced on both sides with a fibreglass mesh embedded into a thin cement polymer mortar.

WARMUP INSULATION BOARD can be used as a structural tile backer board in the floor. It will withstand a load of 30 tonnes per square metre. It is ideal for use with underfloor heating as it pushes the heat into the room, by not allowing heat to penetrate down into the concrete substrate below. As a wall tile backer board, tiles can be fixed directly on to the surface without prior preparation and, being totally waterproof, is ideal for use in bathrooms or showers.

WARMUP INSULATION BOARD will save you money when used in conjunction with undertile heating by acting as a very efficient thermal barrier. It reflects the heat upwards into the floor tile instead of allowing heat to warm up the concrete slab below. By using WARMUP INSULATION BOARD you will find that after switching on your heating, your floor tiles will warm up in about 10-15 minutes. Without WARMUP INSULATION BOARD it could take anything from 2-3 hours, or more.
BAL Fastflex Powder & Liquid

A two part, rapid-setting, sulphate-resistant, water-resistant and frost-resistant floor tile adhesive and isolating, anti-fracture underlay, suitable for use in interior and exterior locations. Suitable for fixing ceramic floor and porcelain tiles and mosaics (including fully vitrified), dark natural stone and slate. Suitable for use on tile backer boards, glazed tiles, concrete bases, cement:sand screeds, tongue & groove floorboarding, plywood overlay, floating plywood/chipboard floors, ceramic/quarry tile/terrazzo/hard natural stone bases, vinyl tiles/sheet, mastic asphalt, steel, glass reinforced polyester (GRP), steel and galvanised steel. Conforms to BS EN 12004, Type C, Class 1F.

BAL Superflex Wide Joint Grout

A highly flexible, water and frost-resistant cement-based powder grout with built-in admixture specially designed for use in areas where increased flexibility and enhanced durability are required. Suitable for grouting tiles with joint widths up to 20mm. Suitable for interior and exterior locations on both wall and floor tiling. Ideal for grouting limited movement areas such as timber floors or heated screeds. Suitable for grouting in swimming pools. Conforms to BS EN 13888, Type C, Class G2.