Gefach

a Gefach is part of a framed wall and designates the area between the timber beams.

In the filled out condition it is called Ausfachung (Lenze 2004).

Major item: Half timbered house

building materials

usual building materials for the Ausfachung from framework are bricks, loam stones or with loam applied Staken, the Lehmstaken.

The technical advantage loam wood of the group - and in smaller measure also (it ungebrannten) the loam brick - is that it itself the deformations of the timber construction, to which a working, much better adapt. For this reason the method, although loam had the call of a ärmlichen building material already in the Middle Ages, was into the last century, and also with modern renovations again was usually used. Here high-quality thermal loams are used .

bricks

Backsteinausfachungen are usually implemented as exposed masonry. In some regions the Ausfachung will provide additionally still with a lime finish.

The bricks are bricked with loam or Kalkmörtel and ordered with Kalkmörtel. Loam has a preserving influence on the wood of the framework by the humidity-adjusting effect here. The Endfeutigkeit of loam is smaller than of wood, thus ensures the loam for the fact that the wood drying remains and cannot putrefy. Besides the stones can be cleaned and reused very simply by mortar remainders with renovation work.

For stabilization notches are struck into the stands of the framed wall, so that it between mortars and wood come to a positive connection. Alternatively with half-timbered house old with renovation also triangle borders are up-nailed to the stands or struck in joint height galvanized nails into the stands.

work on

] of loam stones Ausfachungen with loam stones most frequently with inner walls and economics or Gesindegebäuden. Over it a loam or a lime finish comes. As is the case for the Backsteinausfachung the wood stands are nicked.

Lehmstaken

the Lehmstake is oblong piece split wood of round or rectangular cross section. It is wedged senkrechte between the horizontal framework bars. These are called therefore specialized wood.

In order to embody the Lehmstaken, small holes become into the lower surface of the upper bar, the latch plate, and a groove into the top side of the lower bar, e.g. a threshold struck - or also a groove on upper and lower surface bar attached. The tool used for it is the Dexel.

The Staken are then thrown with Strohlehm (Lehmbewurf) and cleaned. In some regions the Staken also still become with wattlework from pasture - or hazel branches umschlungen, specialized switches mentioned.

finery

over in the external area damage to the framework to avoid, is to be noted when cleaning that the finery locks concisely with the wood or jumps back slightly. As finery only diffusion-open materials should be processed. Finery from high-hydraulic lime or even cement can damage the framework.

When using loam as external plaster this must be protected additionally from decomposition. For this a painting from 1 part sump lime , 1/4 food quark and 1/8 linseed oil is suitable. This painting becomes clean white after drying and protects the loam many years.

During the reorganization of old framework constructions from some craftsmen the outermost finery layer of the Gefache will provide with special flashes. This contained beside limestone flour still addition of gemahlenen bricks, sand and little cement. The mixture is a soft finery, which is to behave with variations in temperature like the loam present under it.

literature

• Dipl. - engineer Wolfgang Lenze: Half timbered houses, restore - reorganize - modernize, Frauenhofer IRB publishing house, 3. Aufl. 2004, ISBN 3-8167-6431-2

Wiktionary: Gefach - word origin, synonyms and translations