NF DTU 52.10-Implementation Insulating underlay under hat or floating slab & under tiles
Batirama.com 05/15/20180The implementation of insulating sub-layers must be carried out to ensure the continuity of the desired insulation (thermal or acoustic).
Application domain
NOTF DTU 52.10 "Implementation of insulating sub-layers under the screed or floating slab and under sealed tiles" defines the requirements for the implementation of insulating under-layers under screed or floating slab and under sealed tiles intended to contribute to thermal insulation and/or acoustic of works:
The version in force of this NOTF DTU, to the publication of this sheet, is that of June 15, 2013.
Targeted materials
The requirements that all the components necessary for the implementation of insulating underlay or floating slab must be respected and under floating slab and under sealed tiles (soil plaster, rating materials, thin acoustic underlayers, studs, strips, stripsperipheral, separation layer, etc..) are given in Part 1-2 "Book of the general criteria for choice of materials" of the NOTF DTU 52.10.
Implementation: the essential
Design
For the proper execution of the work, the following information must be transmitted:
Only the supports based on hydraulic binders below are eligible:
The implementation of the underlay can only take place if the support considered:
When designing the work, the following prescriptions must be followed:
In addition, the rules of use of insulating underlaying must be followed, in particular according to the class of the latter (SC1 or SC2).They are recalled in article 8 of the NOTF DTU 52.10.
Implementation
In general, and in order to avoid the penetration of Laitance into the insulating underlayer (except for thin acoustic underlayers and stud slas), a polyethylene film must be arranged on the entire surfaceintended to receive the underlay.It must be climbed on the peripheral strip, properly folded to the corners and fixed using adhesive strips.
The implementation of underlaying will be dependent on their conditioning.The main principles are gathered in the table below:
| Packaging of insulating underlayers | ||
| Panels | Rollers | |
| Right edges | Firement leaflets or studs or stud slas | |
Implementation | Joint pose with shifted joints over the entire surface of the premises | Implementation de manière à présenter un bord droit en appui sur la bande périphérique | Joint or longitudinal recovery installation |
The dilation, isolation or breach of the structural work support must be respected, which is not necessarily the case with the withdrawal or stopping seals. | |||
Peripheral dissociating and treatment of vertical elements | - Chap, slab or sealing mortar compulsorily dissociated with all vertical walls (walls, partitions, foot of the frames, thresholds, sheaths, posts, etc..) thanks to the implementation of a compressible strip on the periphery. - Implementation du revêtement de sol défini sans retrait de la bande résiliente périphérique. - Placement of plinths on vertical support: * by folding the peripheral strip under the plinth and cutting it floss; * by sparing a space of a few millimeters from the finished floor, after cutting the peripheral strip; * Using a specific profile. |
NOT.B. : Cette fiche rapporte l’essentiel du NOTF DTU 52.10.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.
