Energy Plus Tilt & Turn Windows

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Quick Overview

Our energy efficient  Tilt and Turn windows are made to measure and offer great control over the air flow allowed in the home.


The wide 'turn' hinges allow for easy cleaning and the top tilt offers secure ventilation, these suit properties where the windows are hard to access - either in high rise buildings or where they are situated behind furniture and are difficult to clean.


Constructed from engnineered European Redwood, they are very strong and factory finished in a highly effective paint or woodstain with a colour matched drip tray and efficient drainage system that all combine to keep moisture away from the wood and guards against leaks.


The double glazed units are argon gas filled sealed units comprising soft coat energy saving glass to give a 1.1W/m2K U-value.


Security comes in the form of multipoint locking system with bolts and cams and the beading is fitted internally so removal of the double glazed units is only possible from the inside. 


For performance summary click on the 'Technical Info' tab below


Available as timber and Alu clad

Energy Plus Tilt & Turn Windows

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Ecomerchant Tilt & Turn window

Ecomerchant’s Tilt and Turn practical design means your window can be opened in two ways. The window can open inwardly from the side and also tilt inwards at the top for ventilation. This clever design makes cleaning easy and has the added safety bonus of making a good fire escape.

Our Tilt and Turn Window offers a very high standard of energy efficiency for your home. Excellent thermal performance and functionality make this a popular choice and is regularly specified on project designs looking for a more contemporary look.

This made-to-measure window is available in Timber or Aluminium-clad timber with the choice of double or triple glazing in any RAL colour or stain.

Gaskets and insulated glazing units used in the design ensure air tightness and energy efficiency. The units are constructed using top grade laminated, responsibly sourced, slow grown timber and the use of tried and tested hardware help to prolong your window's life.

 


Ecomerchant’s Tilt and Turn practical design means your window can be opened in two ways. The window can open inwardly from the side and also tilt inwards at the top for ventilation. This clever design makes cleaning easy and has the added safety bonus of making a good fire escape.

 

Our Tilt and Turn Window offers a very high standard of energy efficiency for your home. Excellent thermal performance and functionality make this a popular choice and is regularly specified on project designs looking for a more contemporary look.

 

This made-to-measure window is available in Timber or Aluminium-clad timber with the choice of double or triple glazing in any RAL colour or stain.

 

Gaskets and insulated glazing units used in the design ensure air tightness and energy efficiency. The units are constructed using top grade laminated, responsibly sourced, slow grown timber and the use of tried and tested hardware help to prolong your window's life.

Energy Plus Double Glazed Window

  • Thermal transmittance: Uw = 1,29 W/m²K;
  • Sound insulation: Rw (C; Ctr) = 33db (-1; -4);
  • Cross sections: frame 78 x 78 mm; casement 78 x 78 mm; transom/mullion 105 x 78 mm; glazing bar 63 x 78 mm or 85 x 78 mm;
  • Pine wood with quality class A1–A3;
  • Wooden profiles treated with water based preservative;
  • Glazing unit: double glazing 26 mm (Ug = 1,1 W/m²K)
  • Hardware: GU Unijet;
  • Frame dimensions: WxH max. 2,5 x 3,2 m;
  • Multilight windows with transoms and mullions;
  • Weight of the opening casement up to 130 kg.

Energy Plus Triple Glazed Window

  • Thermal transmittance: Uw = 0,94 W/m²K;
  • Sound insulation: Rw (C; Ctr) = 35db (-1; -5);
  • Cross sections: frame 78 x 78 mm; casement 78 x 78 mm; transom/mullion 105 x 78 mm; glazing bar 63 x 78 mm or 85 x 78 mm;
  • Pine wood with quality class A1–A3;
  • Wooden profiles treated with water based preservative;
  • Glazing unit: Triple glazing 40 mm (Ug = 0,6 W/m²K);
  • Hardware: GU Unijet;
  • Frame dimensions: WxH max. 2,5 x 3,2 m;
  • Multilight windows with transoms and mullions;

Downloads

U values are only part of the story; sealed glazing units provide the lowest component U values within a window, so the most efficient windows will be those with the most glazing and least frame. Introducing frames and opening sashes reduces the overall window U Value and provides an opportunity for cold to ‘bridge’ the structure or allow air (hot or cold) leakage. For this reason the quality of the components, the quality of construction and attention to detail when fitting can have a significant impact on the lifetime performance – and so contribution to the long term thermal efficiency of the building. This is why there are often significant variations in price when comparing - apparently similar- window quotations.

Choosing a window solely based on lowest U values at the lowest price should  not be the absolute deciding factor, after all there are many inexpensive UPVC windows that are independently assessed with ultra-low U values, but there are often environmental or aesthetic reasons why people do not choose them, more importantly is the maintenance of lifetime  performance. Various studies show that over the lifetime of a window engineered timber will provide a cost effective solution when the maintenance of lifetime performance is taken into account. In fact the Herriot Watt study (which you can download from the ‘TECHNICAL INFO’ tab) clearly shows that quality timber windows last twice as long as UPVC windows and are more cost effective over their lifetime

A note on types of U value Uf, Ug, Uw and Ud-Values

As a householder, you will probably be most interested in the U-value for the whole window or whole door, known as the Uw value and Ud value respectively. In each case these are calculated by combining the U-values for the window or door frame (known as the Uf value) and the U-value of the glass (known either as the Ug value or the ‘centre pane U-value’).

U-values describe the insulation ability of a given construction. The lower the u-value is, the better it insulates, thus reducing heat loss through windows. In a window context, it is the window's total insulation ability, including frame and sash, which is relevant. This value is called Uw and is measured in W/m2K.

By using the construction's aggregated insulation ability, all components and materials are taken into account.

Uw is dependent on window size, pane and sash/frame type and dimension. In the UK manufacturer declared U values are typically given for a standard sized window (1.23 m x 1.48 m), but there is also an obligation to provide the Uw-value for the actual window sizes at the customer's request. The exact U-value is crucial information in energy framework calculations.

On facades, where there is only a little chance of solar heat contribution (i.e. north-facing facades or facades in shadow), the best result will most likely be achieved by primarily focusing on the window's U-value.

The total insulation value for the window or door, Uw, is used in calculating the energy frame for buildings, which are typically made by consulting engineers.


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