Frequent question: Can you tile on top of Black Jack DPM?

Can you tile on DPM?

When sand-blinded, BAL DPM allows tiling onto difficult substrates such as steel. … Surface damp proof membranes, like new BAL DPM, will protect tile adhesive and tiles from both ground floor water and residual construction moisture found in new screeds such as sand: cement and calcium sulfate screeds.

Can you tile on Black Jack?

Black Jack DPM is commonly used in the following areas : Providing sandwich damp-proof membranes for floors. General Waterproofing: – for use on concrete, fibre/cement, render, plaster etc. … As a bonding agent for plastering difficult substrates such as glazed tiles.

Can I tile over bitumen adhesive?

You can tile immediately on to contaminated, stained or cracked screeds and over bitumen. Roll out the BAL Flexbone 2Easy with the blue mesh side up. Roll out from the corner and cut precisely to the required length and sizes as required for the floor.

Do I need DPM under tiles?

No it wont unless it’s free liquid water. Moisture vapour doesnt work like that. You cannot solve ground borne moisture using a liquid DPM. These are designed to protect against residual moisture only.

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Can you put tile on a damp wall?

Short Answer: Yes, you can tile a damp basement if it’s rising damp, but it’s very important to use breathable tiles, such as unsealed quarry tiles or natural stone tiles that have been treated with a water-based sealer, such as LTP Mattstone H2O.

Does DPM liquid work?

Liquid dpm would do a job if you have a good clean floor and no existing damp issues. And yes you can level the floor after. Might be worth having the floor checked properly first though as it sounds like you may have existing problems going by what you have already said.

Can you paint over black jack DPM?

Make good any damaged or perished plaster. … When the final coat has thoroughly dried, the wall should be re-plastered. DECORATING. Gloss paints and other oil or alkyd based paints must not be used over a surface treated with BLACK JACK DPM.

Can you tile over damp proof paint?

Unfortunately, there is no easy fix when it comes to tiling onto an emulsion painted surface, the paint must be removed. Emulsion paint is water based so as soon as the adhesive comes into contact with the paint it reactivates it leaving you with a very poor or non-existent bond.

Can you render over blackjack?

The render will not adhere to the blackjack unless it had kiln dried sand thrown at it whilst still wet to provide a decent key. I would dry line using metal framing which is cheap and easy, then either board and skim, or moisture Resistant boards, then tape and fill.

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Can you tile on top of asphalt?

Flooring grade asphalt is the only material suitable for tiling onto. Do not lay onto roofing grade asphalt. It should be a minimum of 15mm thick throughout the entire area. The surface should be crack free.

Can you tile over tar?

Concrete can make the ideal subsurface for laying tile over if properly prepared. Moisture can leak readily through your slab into the tiles unless you place a vapor retarder between the surfaces. … A layer of tar paper serves this purpose.

What will stick to bitumen?

Where it’s wanted for something to stick to bitumen, sand is sprinkled on while still wet. Cement, paints etc can then stick to the sand.

Can you put DPM on top of concrete?

DPM’s can be applied to either a suitable blinding layer under the slab or internally to the top of the slab. Consideration should be given to applying the DPM to the top of the slab, as the installation and moisture sensitive internal finishes are then protected from any residual moisture in the concrete.

What goes on top of damp proof membrane?

Does a DPM go above or below floor insulation? Insulation should be laid above the DPM. This is to protect the concrete above and also the insulation from potential moisture damage. If the insulation were to be placed under the DPM, the moisture would degrade the insulation over time.