Dry screed

SJ - 2x12,5 DFIR/PS

Flooring undercoat made of DFIR type Floor Boards  2 x 12.5 mm thick on a fixed base

SJ - 2x12,5 DFIR/PS

Technical data

Dry screed mass
Dry screed mass
27.0 kg/m2 1) 
Acoustic insulation
Acoustic insulation
ΔRW=up to 17 dB 2) 

The maximum surface area without expansion joints is 30 m

2.

Standard

recommended recommended

Provides a lightweight and stable underlay for floors with fire resistance.

recommended

Dry screed elements

1
Norgips KP type DFIR gypsum plasterboard , thickness: 12.5 mm
2
Linoleum, vinyl or parquet floor adhesive
3
Levelling layer (e.g. corrugated cardboard)
4
Optional moisture insulation of insulation tar board of PE film
5
Fixed base (e.g. concrete)
6
Norgips wood screws 3.5 x 25 mm or staples C 4/23 mm
7
Expansion joint - 10 mm mineral wool
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System datasheet SJ - 2x12,5 DFIR/PS
1)
The weight specified does not include the levelling and insulation layers.
2)
Estimated increase in acoustic insulation effectiveness on the basis of the DIN 4109 standard
Lining surface area m2
Swpie
Material
Unit
Consumption per 1 m2
Consumption
on {total} m2
Price
per unit*
Value

Value of materials per 1 m2 of dry screed

:
{get_calculation_per_meter} PLN

Value of materials per 1 m2 of dry screed

: {get_calculation_per_meter} PLN

Total value of materials for the dry screed surface area

:
{get_total_calculation} PLN

Total value of materials for the dry screed surface area

: {get_total_calculation} PLN

The above material consumption standards are just estimates and do not include waste resulting from material installation. The calculation does not constitute a commercial offer within the meaning of Article 66 § 1 of the Civil Code.

* In order to calculate the wall construction cost, enter material unit prices.

Project information:
Additional comments:
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PDF calculator SJ - 2x12,5 DFIR/PS
XLS calculator SJ - 2x12,5 DFIR/PS

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Declaration of Performance Declaration of Performance No. Podłogowa 12,5/N/2025 date: 13 Aug 2025 – DFIR 12,5 - EN 520

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Technical sheet KT - Wood screws
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Technical sheet KT - Wood screws, consumer packed
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Technical sheet KT - NORGIPS KP FLOORBOARD 12.5 mm type DFIR

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Catalogues and leaflets NORGIPS solutions - DRY SCREED
NORGIPS floor system with a two-layer dry screed on insulation boards
Wood screws 3.5 x 25 mm
Phosphate-coated screws for affixing plasterboards to wooden structures
Wood screws, consumer packed 3.5 x 25 mm
Phosphate-coated screws for affixing plasterboards to wooden structures
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Rafał Kaczmarczyk
Deputy Technical Support Manager
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