Laying tiles on prefabricated gypsum blocks
![](https://molins-dev.mo2o.com/construction-solutions/wp-content/uploads/sites/6/2021/12/miniatura-0036-miniatura-colocacion-de-baldosas-sobre-prefabricados-yeso-y-escayola-1.jpeg)
Civil work
Edification
SoluciónLaying tiles on prefabricated gypsum blocks
Descripción sistema
In recent years, there has been a significant increase in the use of prefabricated plaster and/or plasterboard (plaster plates and panels, ceramic blocks covered with plaster) for interior partitioning in the construction of houses; the need to carry out the works in shorter periods of time has meant a boom in the mechanisation of construction procedures and in the use of this type of material.
The nature of this type of substrate requires a number of precautions to be taken when laying ceramic tiles.
Linked solutions
- INSTALLATION OF LARGE-FORMAT CERAMIC TILES ON FLOORS
- LAYING OF CERAMIC TILES ON OUTDOOR TERRACE
- LAYING CERAMIC TILES ON LARGE-FORMAT BRICKS
- CERAMIC TILE INSTALLATION ON FRESH MORTAR
- LAYING OF CERAMIC TILES ON FAÇADES
- CERAMIC TILE INSTALLATION ON IRREGULARLY SHAPED SUBSTRATES
- LAYING CERAMIC TILES IN SWIMMING POOLS
- CERAMIC TILE INSTALLATION ON PLASTERBOARD SUBSTRATES
- LAYING TILES ON FLOORS WITH UNDERFLOOR HEATING
- LAYING OF PORCELAIN STONEWARE
- INSTALLATION OF NATURAL OR ARTIFICIAL STONE ON FAÇADES
- LAYING A TILING ON TOP OF AN OLD ONE
- LAYING CERAMIC FLOORING ON TOP OF AN OLD ONE
Related products
Solution: laying tiles on top of prefabricated plasterboards
PREPARATION OF THE SUBSTRATE
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4519/value/erbabas-ok.jpg)
Remove the excess assembly adhesive used for the installation of the precast concrete.
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4528/value/propamsa-0006-dsc00316.jpg)
The support must be strong and have a correct flatness.
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4547/value/propamsa-0007-dsc00309-ok.jpg)
The creation of reglets for the installation of electrical wiring, heating pipes, water pipes, etc., generates dust which is deposited on the surface of the precast element.
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4556/value/propamsa-0008-dsc00306-ok.jpg)
Wipe off any dust or dirt residues with a slightly damp sponge before starting the installation.
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4565/value/propamsa-0005-dsc01164-ok.jpg)
It is recommended to apply a primer with PROPAM® DUR or PROPAM GRIP+ to consolidate the surface. If the board is waterproofed, it is not necessary to carry out this operation.
APPLICATION
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4473/value/propamsa-0010-aplicando-cemento-cola-ok.jpg)
Spread VAT® EXTRA, VAT® PORCELANICO FLEX, VAT® FLEXIBLE, PAM® ECOGEL FLEX, PAM® ECOGEL PORCEL, PAM® ECOGEL SUPERFLEX on the substrate using a notched trowel, double gluing when the size of the piece is greater than 900 cm².
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4480/value/propamsa-0004-presion-baldosas-ok.jpg)
Press the tiles in order to achieve a correct pressing of all the pieces.
![](https://molins-dev.mo2o.com/wp-content/uploads/sites/6/pc_block_prop/4487/value/propamsa-0003-rejuntado1-ok.jpg)
Leave a minimum joint of 2 mm and grout after 24 hours with the BORADA® range of joint mortars by Molins.
Recommendations
- The plaster paste or glue used in the installation of the precast must be dry and hardened before the tiles are laid.
- The residual humidity of the substrate must not exceed 3%.
- PAM® SPECIAL GYPSUM can be used for laying tiles with a water absorption of more than 6%.
- For laying tiles with a water absorption of less than 3% and a larger ceramic side of 30 cm, useVAT® PORCELANICO FLEX, VAT®FLEXIBLE, PAM® ECOGEL FLEX, PAM® ECOGEL PORCEL, PAM® ECOGEL SUPERFLEX
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