Glossary

Brick
Brick is a general term. It means any brick burnt in a stove, made of clay. All bricks have the same positive properties. They include: high resistance, high level of thermal insulation, self-regulation as regards humidity and optical diversity.
Halfbrick
Brick with only half the depth of a normal brick.
Heading brick
Long side of a brick located at right angles to the wall surface so that the narrow part (head) of the brick is visible.
Header
Short visible surface of a brick.
2 DF Format
Format originating from narrow DF format, sized 240 x 115 x 113 mm. See also: Formats
DF Format
Narrow format sized 240 x 115 x 52 mm. See also: Formats
EURO-NF Format
Special format sized 240 x 100 x 71 mm. See also: Formats
NF Format
Normal format sized 240 x 115 x 71 mm. See also: Formats
RF Format
Format used formerly in Germany (the German format). Special historical format sized 250 x 65 x 120 mm. See also: Formats.
Formatc
Brick formats originate from the basic „Narrow format” (DF). Therefore, normal format (NF) is made up of one DF brick and one joint width, 2 DF format is made up of two bricks and one joint width etc. There are also special formats originating from historical brick formats. Feldhaus Klinker offers the German Format and EURO Normal format as special formats.
Clinker
Clinker means bricks made of clay with low lime content, burnt in temperature exceeding 1100 °C, highly resistant to external factors.
Clinker cladding tiles
Clinker cladding tiles combine the positive properties of normal clinker products with low weight. Due to the house value raising system they can be easily laid on existing buildings as a durable protective leather of the building substance. See also: Angle tiles.
Building maintenance costs
Clinker is very resistant by its nature. This is a big advantage when it comes to costs as costly renovations and painting that you do regularly in case of plastered facades are no longer necessary with ISO-KLINK-PUR method. Clinker effectively protects the building’s construction substance for many generations.
Fittings
Very good susceptibility of the material allows for even the most complicated special forms. We have a broad range of fittings to impart a special note to any building.
Hand moulding method
Unlike the pressing method, raw bricks here are formed individually. Nowadays this process is done by machines, not manually.
Resistance
Buildings made of clinker products are not impacted by weather and do not require any special time-consuming and costly maintenance. Even with their low density compared to the brick volume, they show a high level of endurance and frost resistance. These properties have enabled preservation of Roman structures made of bricks two thousand years ago. Good quality of bricks is also confirmed by many historic buildings, in particular in Southern German cities.
Sandblasting
Sandblasting means developing a special surface structure by way of sprinkling the inside of a brick mould with sand. This brick production method originates from Flanders.
Angle tiles
Angle tiles are precisely fitted tiles that can spare the laborious cutting – e.g. at the window reveals. They make work much easier, especially combined with the „House value raising system”. It results in a wall surface that cannot be distinguished from a traditionally manufactured wall.
Production by pressing method
Unlike the hand moulding method, in case of pressing clinker products are not formed individually. They are pressed with a previously shaped clay strip.
Humidity regulation
Small pores and hairlike capillaries develop in bricks during burning. They absorb moisture from the surroundings, then give it back in favourable weather conditions. Compared to other construction materials, bricks dry very quickly. When walls are correctly made, they do not accumulate moisture, nor condensation takes place. This fact has a positive impact on thermal insulation as well.
Joint
Joint is a mortar-filled space between bricks that holds a wall together. Joints can be made in various colours. They have an important influence on the appearance of a building.
Bond
Bond means orientation of stretcher bricks (with long sides exposed) with header bricks (with short sides exposed). See also: Heading bond
Heading bond
Binding bricks so that header parts of bricks are visible.
k
Heat transfer coefficient. This parameter informs about heat losses caused by heat transfer through walls: the lower k coefficient, the lower heat losses are.