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Laying Porcelain Tiles Outdoors Using Rock Tite Exterior Porcelain & Stone System

 

Step by step guide to laying porcelain tiles outdoors

Recommended products

  • Rock-Tite Porcelain Primer
  • Rock-Tite Mortar / Rock-Tite Mortar Additive
  • Rock-Tite Brush-in Grout

Preparation

  1. Dig out the area to be tiled, making sure it is stable
    It should be deep enough to allow for a compacted hardcore depth of 75mm to 150mm for patio flags/natural stone. Or 100mm to 150mm for porcelain tiles.
  2. Create a fall
    Set out the area to be tiled using a horizontal level line and a second sloped line to create a fall. The area should fall away from any property at a ratio of 25mm over a 1.5m length.
  3. Compact Type 1 or MOT grade hardcore making sure it is rigid and stable

Laying

  1. Use a mechanical mixer to mix Rock-Tite Mortar at a ratio of 3.75 litres water to 25kg powder
    Only mix enough enough to be used within the pot life of 60 minutes.
  2. Alternatively, use a mechanical mixer to blend a full 12.5kg of Mortar Additive with 75kg of sharp sand. Then add sufficient water and mix until smooth and lump-free
  3. Lay a solid bed of mortar
    A mortar thickness of not less than than 25mm may be used on to hardcore which is not less than 100mm deep.
  4. Pour cold water into the graduated mixing bucket to the correct level
  5. Gradually add the required amount of Rock-Tite Porcelain primer powder
  6. Mix the primer to a smooth lump-free slurry
    Only mixed enough to be used within the pot life of 60 minutes.
  7. Apply Rock-Tite Porcelain Primer to the back of the tiles using a brush or roller
    The primer must still be wet when laying into the mortar.
  8. Lay the tiles into the mortar
    Leave at least a 3mm joint width between the tiles.
  9. Once finished, allow to dry for 24 hours before grouting

Finishing

The ground must be free-draining and the sub-base permeable.

  1. Wet the surface of the tiles and keep them moist throughout
  2. Make sure the joints are clean and dust free
  3. Brush the Rock-Tite Grout into the joints at 45-degrees using a long-handled brush
    Keep applying until the joints are filled and void free. Don’t allow the surface to dry out. Excess grout can be put into a tub and covered with water to at least 50mm above its surface, ready for use.
  4. Compact the joints and finish them with a jointing tool
    If voids appear, refill and refinish then brush off any excess grout.

Foot traffic is permitted within 24 hours.

Using Pro Gyp-Base on an Anhydrite Screed with Permalayer Matting

Using Norcros Adhesive’s fast track solution for tiling to anhydrite screeds you can tile to 7 day old screeds (up to 95% RH). The kit contains everything you need to prepare 25m². It’s been tested and approved by Gypsol.

  1. Pump the Anhydrite screed
  2. Remove all air bubbles and allow to dry until the screed has achieved a Relative Humidity of not greater than 95%. This will be around 7 days after the screed has been laid
  3. Remove all traces of laitance and dust by lightly sanding the surface
  4. Mix parts IA and IB together and mix until it is smooth and lump free
  5. Apply to the screed using a roller or brush. Allow to dry for 2 hours
  6. Mix parts 2A and 2B together and mix until it is smooth and lump free
  7. Apply to the screed using a roller or a brush, at a 90° angle to the first coat
  8. Allow to dry for 24 hours
  9. Pour the moisture suppressant into a suitable tray. Apply first coat using a roller or brush and then allow to dry for 1 hour
  10. Apply second coat of moisture suppressant using a roller or brush, at a 90° angle to the first coat. Allow to dry for 1 hour
  11. Apply one coat of the gritted primer. Allow to dry for 1 hour
  12. Prepare and mix Norcros Pro-Gyp Base tile adhesive, and apply to screed. If required, apply Pro-Gyp Base Levelling Compound before tiling commences
  13. Lay Norcros Permalayer into the adhesive bed ensuring that the adhesive penetrates through the Permalayer
  14. Prepare and mix tile adhesive and apply to Permalayer. Lay tiles and grout once adhesive is dry

Using Pro Gyp-Base on an Anhydrite Screed

Using Norcros Adhesive’s fast track solution for tiling to anhydrite screeds you can tile to 7 day old screeds (up to 95% RH). The kit contains everything you need to prepare 25m². It’s been tested and approved by Gypsol.

  1. Pump the Anhydrite screed
  2. Remove all air bubbles and allow to dry until the screed has achieved a Relative Humidity of not greater than 95%. This will be around 7 days after the screed has been laid
  3. Remove all traces of laitance and dust by lightly sanding the surface
  4. Mix parts IA and IB together and mix until it is smooth and lump free
  5. Apply to the screed using a roller or brush. Allow to dry for 2 hours
  6. Mix parts 2A and 2B together and mix until it is smooth and lump free
  7. Apply to the screed using a roller or a brush, at a 90° angle to the first coat
  8. Allow to dry for 24 hours
  9. Pour the moisture suppressant into a suitable tray. Apply first coat using a roller or brush and then allow to dry for 1 hour
  10. Apply second coat of moisture suppressant using a roller or brush, at a 90° angle to the first coat. Allow to dry for 1 hour
  11. Apply one coat of the gritted primer. Allow to dry for 1 hour
  12. Prepare and mix Norcros Pro-Gyp Base tile adhesive, and apply to screed. If required, apply Pro-Gyp Base Levelling Compound before tiling commences
  13. Lay tiles, then grout once adhesive is dry

Laying Norcros Permalayer onto a Green Screed

  1. First, your existing screed should be sealed with a coat of Norcros Prime Bond, diluted 1-to-4 with water
  2. Roll out the Permalayer and cut to the size required
  3. Next, pour cold water into a mixing bucket and gradually add the adhesive powder. Only mix the amount of adhesive you would be able to use within half an hour, else it will begin to skin over
  4. Use an electric mixer to achieve the right consistency
  5. Now, spread out the adhesive using a suitably notched trowel
  6. Firmly press the matting into the adhesive with the smooth side of thr trowel. The adhesive should penetrate through the surface of the mat. Leave it to dry
  7. Once dry, you’re ready to start drying
  8. Mix another batch of adhesive as before
  9. Spread the adhesive using a suitable trowel, such as a thick bed trowel
  10. Firmly press the tiles into the adhesive ribs with a slight twisting action to ensure the adhesive ribs collapse to form a solid bed of adhesive beneath the tiles
  11. Once you’re finished, your tiles can be grouted 3 hours after you have finished laying

How To Level A Floor Using Pro 30 Fast Track Eco Levelling Compound

  1. First, make sure the area is clean and dry. Brush away any dust, dirt, or laitance
  2. Now you’re ready to prime. Thoroughly mix Norcros Prime Bond with water at a ratio of 1-to-4
  3. Apply with a brush over the floor and leave to dry
  4. Now you’re ready to start applying the leveller. Add 5 litres of water to a clean bucket and slowly add the 20kg bag
  5. Using a drill mixer, mix enough leveller for about 20 minutes working time
  6. Mix it to a smooth consistency
  7. Pour the compound onto the floor
  8. Trowel out to the desired depth, ensuring all areas are evenly covered
  9. Test if the levelling compound is dry by using your hand. It’s normal for heat to radiate from the newly-laid floor
  10. Once it’s dry, floor coverings can be laid using the manufacturers recommended methods

How To Fix Wall Tiles Using NX Universal Tile Adhesive

  1. To mix a full 20kg bag of the adhesive, first you need to pour 5 litres of clean water into a clean mixing bucket, then add the power
  2. Using a drill mixer, mix to a smooth consistency
  3. Using a notched trowel, spread the adhesive to 4 uniform ribs
  4. Now and then, prise a tile away from the background to check that the back of the tile is fully covered with adhesive