Thermal Efficiency

Keeping your home energy efficient

We all worry about how much energy our homes consume. The rising cost of our energy bills and our impact on the environment means we want to keep our consumption to a minimum. One of the best ways to do this is to choose thermally efficient products that keep the warmth in and cold out, thereby saving money and emissions. 

What makes Hurst composite doors thermally efficient?

The exact energy rating of your new door depends on various factors such as the door style and amount of glazing. However, all feature our high-density polyurethane foam core, which provides an insulating thermal barrier between warm air inside and the cold air outside.  

This special core maximises the thermal efficiency of your new composite door, making it 19% more energy-efficient than a traditional solid timber core door. You can be assured that this thermally insulated core is also environmentally friendly with a Global Warming Potential of less than five and an Ozone Depletion Score of zero.  

U Value

The U Value measures how well a component (such as a roof, wall, window, or premium quality door) keeps heat inside a building. The higher the U Value, the less efficient your components will be; a good U Value is a low one. 

A Hurst door far exceeds the requirements of Approved Document L of the Building Regulations, which states that all new doors must have a U value of 1.8 W/Mtr2/K or lessWhilst the U Value will be determined by the amount of glazing, you can be reassured that Hurst composite doors are equal to or less than 1.5 W/Mtr2/K.  

High Performance

Not only do Hurst doors feature a high performing insulating core with a high impact GRP skin, they also feature: 

  • a multi-chamber thermally efficient frame with high tech triple seal 
  • an external door gasket and adjustable hinges to deliver a firm and consistent compression between the door frame and sash to stop any drafts 
  • a weatherproof threshold, plus weatherseal and wool pile barriers to reduce the airflow under and around the door 
  • double or triple glazing to reduce heat loss  

Hurst composite doors are also proven to the BS:EN 6375 classification for weather tightness, air, wind and water, providing peace of mind that you are protected from the elements. 

 

The test

With its insulating core and high performance component parts, a Hurst composite door is the best choice you can make for thermal efficiency. Tests* prove a Hurst GRP composite door is up to 19% more thermally efficient than a 48mm solid timber core composite door and up to 17% more thermally efficient than a 44mm traditional timber panelled door.  

These images show the thermal efficiency of each of the doors testedThe darker the blue, the less heat is being lost. Reds and greens, the predominant colours on the timber door indicate high heat loss. 

For further details speak to your local Hurst Door installer.

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