Windows and doors for the ideal indoor climate

Many criteria influence the indoor climate of your home, and can have an impact on your wellbeing. Rationel windows and doors are designed to ensure good ventilation and insulation, and increased natural light, with options for enhanced security and additional acoustic control.

Improving air quality

Good air quality is crucial to a healthy indoor climate, and depends on effective ventilation to ensure the air throughout your home is regularly refreshed. At Rationel, we make ventilation easy and safe even when you are out, with products such as trickle vents to allow ventilation when a window is closed. All our windows and doors also carry the Indoor Climate Label, proof that our products do not release any toxic substances into the air and make a positive contribution to a good indoor climate.

Natural light

Windows bring daylight, probably the most important feature of a comfortable home and one which can also boost mood and ability to concentrate. Rationel’s energy-efficient windows and doors are designed to optimise natural light, and as each window is manufactured bespoke you can install more – and larger – windows across your home to allow daylight to flow freely. Our triple-glazed windows also make a positive contribution to energy consumption by letting in more light than they emit heat.

Sound insulation

Peace and quiet are essential for health and wellbeing, and while some background sound can be pleasant too much noise can have a negative impact on quality of life. For example, if you live near a busy road or railway, then the resulting noise can disturb your sleep and cause stress. With Rationel’s acoustic control glazing, our windows and doors can significantly reduce levels of perceived noise so you can enjoy peace and quiet in every room.

Safe as houses

It’s very important to feel safe in your own home, and windows and doors play a crucial role in keeping your home secure. Rationel products are approved by ‘Secured by Design’, the official UK Police initiative to improve security by using building products that deter and reduce crime. This means that Rationel products can withstand forced entry thanks to features such as reinforced hardware, laminated glass and three-point espagnolette locks.

Windows and doors as a long term investment

​Sustainability is not just about how our products are made but also how they are used. Rationel windows and doors are built to last, designed to withstand wind, rain and daily wear and tear, and as a result are an excellent long term investment.