DTU 59.4 - Implementation of wallpapers and wall coverings
Batirama.com 08/01/20180The adhesion of wall coverings is in particular judged on the presence or lack of holding of holding leading to an apparent swelling or blistering.
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Application domain
The DTU 59.4 "Implementation of wallpapers and wall coverings" defines the technical conditions for carrying out the installation of wallpapers and wall coverings carried out inside the buildings:
It applies, by extension, to the implementation of ceiling coverings, according to the same techniques.
The version in force of this DTU, to the publication of this sheet, is that of February 1998.
Targeted materials
The requirements that the coatings and products concerned must respect are given in Chapter 3 of Part 1 "Technical clauses" of the DTU 59.4.
Implementation : l’essentiel
Preparatory and primer work
Before the implementation of wallpapers and wall coverings, preparatory work and primer are to be expected.They are numerous and varied but above all dependent on the state of finish sought (A, B or C)) and - for the painted or blocked funds, mats, satin or shiny, lined or coated - of the quality of finish of the subjectiles.They can consist of one/one:
Depending on the finishing state sought, families of coating considered and the quality of finishing of existing subjectiles, if necessary, the installation work will consist in:
Subjectiles targeted by DTU 59.4 are:
Implementation
In general, the implementation of wallpapers and wall coverings can only be considered in a room where the ambient temperature is between 10 ° C and 30 ° C and whose humidity is less than 65 % HR.Some products may require more restrictive conditions depending on the prescriptions of manufacturers.
Three types of finish can be implemented ranging from finish C (surface finishing state reflects that of the subjectile)) to finish A (uniform appearance - low appearance defects)).The one chosen must be specified in the specific market documents.If this is not the case, it is the B finish that will be selected.
A specific finish may apply, subject to including it in market documents.This particular case is not provided in the DTU 59.4.
The implementation of the coverings is most commonly carried out by collage, of which a layout of the les must first be carried out by the entrepreneur.Particular attention will be paid on the choice of collage product, which must be adapted to the conditions of implementation (coverings, subjectiles, conditions on the site, etc..)).It can come in the form of a powder to be prepared, in aqueous dispersion or in the form of solvent glue.
Then, the application of the glue can be done on the back of the coating or directly on the wall.The first technique will tend to recommend the use of a powdered product to prepare in water or ready to use, the second rather a paste with resins or powder prepared in water.The application tool will depend on the viscosity of the glue.It will be chosen from a hair roll, a fine and regular lace spatula or a brush.
Once all these stages are finalized, wall coverings can be implemented according to the prescriptions of manufacturers. Le joint entre lés pourra être à demi-joint (recouvrement de 0,2 à 0,5 cm)), à joint vif (bord à bord)) ou à double coupe (superposition de deux lés et coupe simultanée)).
Particular attention must be paid to the peripheral finish of the surfaces to be covered or in the angles (net cuts, double cut, corner cutting)).
Checks
Without specifications in specific market documents, certain verifications must be made in order to be able to receive the work.They will consist in particular on the visual appreciation of cutouts, the balance, the surface appearance and the grip, 2 m under normal incident lighting.
NOT.B.: This sheet reports most of the DTU 59.4.It does not replace this normative document in any case. Pour tout complément souhaité sur ce type de mise en œuvre, consultez le NOTF DTU disponible auprès de l’AFNOTOR ou du CSTB.
Source: Batirama.com
