Hager AKBA2000701 handleiding
Handleiding
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Basic principles of screed
Screed work
4
PE film
5
Cement screed with underfloor heating
6
Floor covering
3.2 Screed work
Trunking and accessory parts only obtain their full load capacity for correct use through the
fixed composite with the screed. For this, the following preconditions are of importance:
– The trunking system must be sealed before screed is applied
– All the system elements are permanently anchored on the raw ceiling
– The installed duct system may neither be walked on nor subjected to any other loads
– Any hollow spaces created must be filled with screed
– The trunking system may only be subjected to loads after the screed has hardened and must be
blocked off prior to this
– Screed deformations and shrinkages must be observed in advance
With screed-covered trunking, it is essential that the screed thickness above the trunking corresponds
to the value stated in the standard, in order to avoid crack formation.
The nominal screed thickness is dependent on the insulating layer, the individual load and the screed
type. For more detailed information on screed types and the nominal screed thickness, refer to DIN EN
13318, DIN EN 13813, DIN EN18560. Here, under certain circumstances, chemical or thermal impacts
may occur, which may require additional measures to protect the installed system.
Screed-flush trunking (BKF/D and BKW/D) and floor boxes (UDHx,UDBx, UDSx) must be levelled to
the intended height before screed laying (construction side height line). The screed layer should check
the levelling height.
Smooth and compress screed well on the screed-flush trunking and floor boxes (no insulating strip).
Only this achieves the required load capacity.
The BKB/BKG screed-flush trunking system is decoupled from the screed using an insulating strip, as
it could otherwise lead to damage to the screed and/or floor covering.
3.3 Screed types
When selecting the screed structure, it is necessary to clarify which screed mortar types are possible
for the application. There are difference types of screed mortars.
Flowing screed:
Before screed application, these tasks must be observed and completed:
l
The trunking system and boxes are to be weighed down →Floating of the screed
l
The trunking system and boxes are to be sealed against the ingress of flowing screed and protect-
ed on the construction side
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Side profiles and film must be covered with sufficient screed
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Avoid cavities
Aggressive screed:
When using aggressive screed types, all the metal parts must be insulated during construction using
a chloride and alkali-free bitumen layer or other suitable means (VOB Part C).
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Productinformatie
| Merk | Hager |
| Model | AKBA2000701 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 13434 MB |
Caratteristiche Prodotto
| Kleur van het product | Zink |
| Breedte | 200 mm |
| Diepte | 800 mm |
| Hoogte | 70 mm |
| Materiaal | Staal |
