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  • What is an extract from the land register?
    Complete copy of all existing land register entries for a property. To be inspected in case of "justified" interest (e.g. intention to purchase).
  • What is the thermal coefficient Lambda?
    The thermal coefficient Lambda is the measure of thermal conductivity and determines the heat flow through a material due to heat conduction. The lambda value shows how well or how poorly a material conducts heat and thus how suitable it is for thermal insulation. Materials that conduct heat poorly (e.g. insulation materials) have a low lambda value, materials with strong heat conduction (e.g. concrete) a high one. The thermal conductivity of most materials increases slightly at higher temperatures. In general, lambda is the heat output in watts that is conducted through 1m2 of a 1m thick layer of a material when the temperature difference between the two surfaces is 1K.
  • What requirements does laminated safety glass (VSG) meet?
    Laminated safety glass (VSG) is a laminated glass that meets safety requirements. During production, two individual panes are joined together with an intermediate layer - usually of PVB film - under the effect of pressure and heat to form a solid sandwich. The interlayer is normally clear transparent, but can also be used for decorative purposes. If the glass is broken, the shards stick to the film and the opening remains closed, depending on the intensity of the attack. By varying the thickness and number of glass and film layers, the LSG can be given different properties such as burglary, bullet or even blast resistance.
  • What's in the land register?
    Public register, which is kept at the local court and can be inspected there. Each plot of land is entered in the land register on a separate sheet of land. It consists of the inventory and three sections that provide information about the land plot, ownership and encumbrances resting on the land plot.
  • What are the special features of larch as a material?
    Abbreviation DIN EN 13556: LADC

    Botanical name: Larix decidua (European larch)

    Distribution: Europe, temperate climate zones

    Trade names: (European) larch (GB); meleze (FR); larice (IT); lariks (NL); alerce de Europa (ES)

    Short description
    Until the discussion on tropical timber in the early 1990s, the domestic larch played only a minor role for the German timber industry. Its importance, especially for gardening and landscaping, has increased considerably since then. Since the small amount of timber in Germany (only about 3% of the forest area) cannot meet the increasing demand, it is supplemented by imports of the high-quality Siberian larch (L. gmelinii, L. sibirica).

    The sapwood is pale reddish and narrow, clearly separated in colour from the yellowish to reddish to orange-brown heartwood, strongly darkening in light; due to the regular alternation between light-coloured early wood and the sharply defined darker late wood with distinct grain (tangential surfaces) or stripes (radial surfaces). The small resin channels are only visible on smooth cross-sections with a magnifying glass. Fresh wood has a slightly resinous odor.

    Overall character
    Straight grained, decorative softwood with a narrow sapwood, clear core colouring and a pronounced annual ring structure.

    Deviations
    In European larch, coarse, knotty wood from fast-growing cultures; twisted growth and deforestation. Siberian larch wood is generally very dense, of a rather yellowish-brown colour and predominantly knot-free.

    Surface treatment
    Larch wood is to be treated well after removal of any resin spots with any means and by any method, covering or glazing. Because of its beautiful colour and structure, colourless or slightly pigmented glaze coatings are preferred, which bring out the full beauty of the wood.

    Workability
    Larch belongs to the harder coniferous woods. The processing of both fresh and dry wood can be carried out quickly and gently by machine and hand with all tools. It is also good for peeling and for knives, as long as the number and size of the branches is small. Pre-drilling should be done for strong nails and screws.

    Drying
    Stamina is satisfactory to good. Both natural and technical drying proceeds rapidly with a greater tendency to cracking and deformation. Bonding is problem-free.

    Natural durability (DIN-EN 350-2)
    Natural durability: The wood of the European larch is moderately to slightly durable, whereas that of the Siberian larch is durable to moderately durable and is preferable for outdoor use. Resin-rich qualities are highly resistant to acids.

    Areas of application
    Versatile construction timber for medium loads for interior and exterior use
    Exterior applications, mainly in gardening and landscaping; window and door frames (usually made of glued edging); floors (planks, solid wood and ready-to-lay parquet); furniture, panelling, interior doors; stave wood for chemical containers and vats.

    Remarks
    The wood contains water-soluble, washable ingredients. In damp wood, ferrous metals can cause discoloration of the wood, corrosion of the fasteners is possible.

    Larch - Technical properties
    Weight fresh750-800 kg/m³
    Bulk density air-dry (12-15% u)0.47-0.62 g/cm³
    Compressive strength u12-1545-62 N/mm²
    Flexural strength u12-1588-100 N/mm²
    Modulus of elasticity (bending) u12-1510600-14500 N/mm²
    Hardness (JANKA) ⊥, converted3.8-5.7 kN
    Hardness (BRINELL) ⊥ to fiber u12-1519-25 N/mm²
    Differential shrinkage (radial)0.14-0.18
    Differential shrinkage (tangential)0.28-0.36 %
    pH value4.2-5.4
    Natural durability (DIN-EN 350-2)2-4
  • What are lift and slide doors?
    Lift and slide doors as a modern and elegant version of the balcony door, in combination with other floor-level elements, are part of a modern facade design. Due to the large window area, these doors allow more light into the rooms and the living area to appear more spacious. In addition, lift and slide doors ensure a smooth transition from inside to outside. Due to this barrier-free design, they are also suitable for older people or people with disabilities.

    Lift and slide doors can only be pushed open by the closing mechanism and not tilted.
  • What is meant by light transmission?
    Also light transmission factor. Percentage of the light visible to the human eye that is transmitted by the glass. This is over 70% for heat insulation glass and often over 50% for solar control glass today, which is not perceived as a limitation of brightness.
  • What are the characteristics of load-bearing brackets made of metal profiles?
    These components are usually rigid and can therefore transfer greater loads into the building at window level and at right angles to the window plane (often used for large elements, French doors, installation in the insulation zone, etc.). They are bolted to the building structure.
  • What distinguishes a low-energy house?
    A low-energy house is a new building or a renovated old building that must have an energy consumption that meets certain requirements of the current Energy Saving Ordinance (EnEV). In addition to optimal thermal insulation of the roof and external walls, the insulation of the windows and external doors is an important basis for achieving the necessary energy standard.
  • What is low-E glass?
    Coated glass to improve thermal insulation. Low-Emissivity = low heat radiation. The structure of the coating as well as its technical and optical properties may vary.
  • What are Lugs - Claws?
    Lugs are relatively flexible. This allows the thermal length changes of the frame materials to be absorbed well. Brackets can only absorb loads perpendicular to the window plane (support and distance blocks are required in any case).
  • How does a mushroom head lock work?
    A mushroom-head locking system makes it difficult to lever open the windows by hooking the mushroom heads to the recesses in the safety locking plate in the window frame. Depending on the security level and size of the window, the number of mushroom head pins with security locking plate varies.

    When the window is closed, the mushroom head pins slide into the recesses of the security locking plate in the window frame.
  • What are the main features of the Lift & Slide opening method?
    Especially for balcony doors or patio doors, a so-called lift and slide system is often the best choice. It shines above all through its low threshold and thus barrier-free access. To open the door, it is lifted and then pushed aside. Please also pay attention to the noise level that is generated when pushing the door. Modern lift and slide doors float almost silently to the right or left thanks to an intelligent roller system in guide rails. In addition, Lift & Slide doors are optionally available with softclose system or gear damper. While the former ensures controlled, almost noiseless sliding back into the closed position, the latter guarantees above all easy operation - even with heavy doors and/or for children's hands.

Welcome to ENERsign® Price Configurator with U-Value window Calculation:

You don’t want to go through the trouble of obtaining various offers, but would like to find out the recommended prices and U-values for our high-quality ENERsign®primus window? Then try our price configurator, here you can put together your desired windows as you wish and try out different sizes and designs.

All you need is the desired dimensions and window types and you can configure immediately. The window price and U-value window will be adjusted automatically, so that you always have an overview and can compare directly.

We are uncompromising in the product we offer:
ENERsign®primus elements with at least triple glazing with a U-value glass of 0.52 W/m²K and a g-value of 53%. Other designs and special glasses are available on request.

Welcome to the ENERsign® U-Value window configurator:

The U-value window is also called heat transfer coefficient and according to the standard DIN EN 10077 it indicates the amount of thermal energy lost through a window to the outside.

The U-value window is calculated using the formula W/(m²K), i.e. watts per square metre and Kelvin. This value refers to the entire window and defines the amount of energy per unit of time that flows through an area of one square meter when the air temperature on both sides differs by one Kelvin. The lower this value is, the less energy or heat the window emits.

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