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Wooden houses: 6 basic rules for a long service life
Wooden houses: 6 basic rules for a long service life

Video: Wooden houses: 6 basic rules for a long service life

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The lifespan and quality of life of a wooden house can be easily extended and improved with a few basic rules. For example, the choice of wood is crucial for the lifespan of the wooden house. Here you can find out how you can live safely and healthy in a wooden house.

6 rules help to extend the life of a wooden house

  • Choose the right type of wood
  • Plan the wooden house properly
  • Construct the wooden house according to the material and carry out the construction carefully
  • Protect the wood constructively
  • Paint directly weathered wood on the outside walls and roof or install weatherproof facade cladding
  • Check and maintain the wood regularly

1. Choose the right type of wood

How long, in particular, the external components of the wooden house can withstand all stresses, remain stable and beautiful also depends on the choice of the type of wood. Resistance classes provide information on how resistant different types of wood are to fungi and insects. Oak, robinia and larch are particularly weather-resistant, repel pests naturally and have a long service life.

Ein verwittertes Holzhaus
Ein verwittertes Holzhaus

Wood rarely needs maintenance, but when it does, it should be careful.

Photo: living4media / Great Stock!

2. Plan the wooden house properly

Moisture has the greatest impact on the lifespan of a wooden house. The timber is therefore dried in the factory to the ambient humidity in which it will be installed later. Fluctuations in moisture do not do any harm if the material that is taken up can also release water without hindrance. If components have got damp, they can be dried:

  • Flatten cut edges
  • Avoid horizontal wooden surfaces
  • Drain water quickly over slopes
  • Switch off waterlogging
  • Ventilate the wood
  • Cover wooden edges with metal sheets
  • Place wooden supports on stainless steel feet or concrete bases, avoid direct contact with the ground
  • Install horizontal barrier layers
  • Stop splashing water

3. Protect the wood constructively

The facade cladding of a wooden house in particular is attacked by fungi with a wood moisture content of over 20 percent. However, brief increases in humidity do not affect the lifespan of the wooden house. So don't panic during a rainy season. To reliably protect the wooden house against moisture, you can:

  • Discharge the rainwater: rain and condensation should run off quickly from wooden cladding, splashing water should not burden the plinth area. About 15 to 30 centimeters between the top edge of the terrain and the hem of the facade cladding provides adequate protection.
  • Ventilate the facade shell and mount the ventilation grille on the lower and upper edge - depending on the mesh size, it prevents insects and small rodents from nesting in the cavity.
Ein kleines Holzhaus
Ein kleines Holzhaus

A wooden house can also owe its robustness to the paint. It seals the surface and protects against water.

Photo: iStock / dancestrokes

4. Coat the external components of the wooden house

A wide roof overhang shields facades from rain and sun, and coatings or coatings additionally extend the lifespan of the wooden house. UV light and rain change the wood components on the surface and color them gray, a preventive chemical wood protection does not prevent this. For exterior wall cladding and other non-load-bearing or stiffening components, there is also no building law requirement for chemical wood protection.

Coatings reliably protect the wood from moisture and UV rays, pigmented glazes or top coats do this more effectively and longer than colorless products. The coating for so-called non-dimensionally stable components should be open to diffusion and should be applied before assembly. Wood professionals can restore gray or silver bleached wood to its original wood tone: they sand the surface and redesign it with glaze or varnish. Glaze pigmented the upper wood layer, wood look and structure remain visible. Lacquer forms a waterproof film that penetrates deep into the wood and covers its naturalness.

5. Check and maintain the components of the wooden house

Outdoor wood should be checked every six months. Builders can inspect the condition of visible components and connections themselves. If you want to be absolutely sure, leave this work and the control of the wooden house in hard-to-reach areas to a carpenter. You will save expensive, extensive renovation work if you:

  • Carefully observe the wear and aging of the natural building material wood
  • Repair small damage quickly
  • Have damaged components of the wooden house replaced immediately
  • Observe the maintenance intervals of chemically protected load-bearing and / or stiffening components.
Ein Holzhaus mit Glasfront
Ein Holzhaus mit Glasfront

If you decide to subsequently treat your wooden house with chemical protection, you should clarify the work beforehand with a wood professional.

Photo: living4media / Bozzard-Hill, Clive

6. Maintain and clean the wood

Regular cleaning extends the lifespan of the wooden house. However, wood should be cleaned gently, preferably with a medium-hard brush. Where there are large trees on the property or heavy car traffic occurs, wood is more likely to pollute than in airy gardens and on low-traffic residential streets. A microfilm forms on the facade or other components - an ideal breeding ground, for example for algae. If you tackle your wooden house with a conventional high-pressure cleaner, you may drench the construction and cause damage in areas that cannot be seen with the sharp water jet. There are a large number of special products for cleaning and maintaining wood - the information on the packaging explains what is suitable for which type of wood and what purpose. The manufacturer's quantity and processing specifications should be observed - higher doses do not clean or protect more effectively. When you refresh the paint or surface treatment, you avoid changing materials - new paint, for example, does not adhere to waxed wood.

Subsequent chemical wood protection of load-bearing or stiffening wooden components should be discussed with your carpenter. He advises on the necessity, methods and approved products - they are listed in a directory of the German Institute for Building Technology DIBt, which is continuously updated.

Invisible parts in the wooden house, such as wooden frame constructions, do not require any maintenance. Visible, raw wood in the interior only needs to be dusted occasionally. Treat the surface of waxed, glazed or varnished supports and beams, beams and rafters from time to time, as well as wooden cladding. Seal stressed components such as stairs and floors with colored or transparent lacquers - they become fresh again with special care products. Doors, table tops, work surfaces and less stressed wooden floors suffice for a six-monthly treatment with wax or oil. Smaller scratches can be repaired with wood putty.

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