Portland XLDF
Anthracite smooth
A shade that provides investors and architects many opportunities. It fits modern buildings and minimalist projects, but can become an inspiration to create interesting objects in other styles. Its hallmark is the smooth surface of the face and the color of muted blackness, obtained by engobing.
Just like other clinker bricks of the Röben brand, it is characterized by longevity, durability and resistance to external factors, including water, frost, wind and fire.
- Smooth face surface with original coloring;
- Perfect for modern projects
- High technical parameters of bricks
- Large XLDF format (365 x 115 x 52 mm)
Technical data
Dimensions of a brick XLDF
365 x 115 x 52 mm
The total area of perforation
>15% ≤ 50%
External wall
21 mm
Bulk density of brick NF i LDF
1500 kg/m3
Bulk density of brick VNF i VLDF
2300 kg/m3
Bulk density of brick NF SP
1650 kg/m3
Bulk density of brick 7-S
1900 kg/m3
Bulk density of brick XLDF
1600 kg/m3
Strength of brick NF, NF SP, LDF, XLDF
≥35 N/mm2
Strength of brick 7-S, VNF, VLDF
≥45 N/mm2
Absorbability
do 6%
Frost resistance
category F2
Acid resistance
+
Alkali resistance
+
Coefficient of thermal conductivity of brick NF, LDF, XLDF
P = 50% - 0,37 W/mK
P = 90% - 0,43 W/mK
P = 90% - 0,43 W/mK
Coefficient of thermal conductivity of brick NF SP i 7-S
P = 50% - 0,45 W/mK
P = 90% - 0,51 W/mK
P = 90% - 0,51 W/mK
Coefficient of thermal conductivity of brick VNF, VLDF
P = 50% - 0,72 W/mK
P = 90% - 0,79 W/mK
P = 90% - 0,79 W/mK
Available formats
Brick NF
Brick LDF
Brick XLDF
Brick NF-SP
