French doors for patios and balconies

Patio and balcony doors are popular targets for burglary attempts. Burglar resistant French doors made from aluminium help you to protect your home. Aluminium is a material that offers the best stability and resistance. The modular design of your French door and various security components, such as the number of locking points, lockable window handles, burglar resistant safety glass, fittings with mushroom head lock and anti lift devices ensure that burglary protection including resistance class RC 3 can be achieved. This means that a heroal French door withstands break-in attempts using a screwdriver, crowbar and simple drilling tool for at least five minutes. heroal French doors have been tested and approved by the independent German institute “Institut für Fenstertechnik“ (ift Rosenheim) and, in accordance with German industry norm DIN EN 1627, have received resistance class certification including RC 3. In combination with heroal safety roller shutters made of stainless steel, heroal French doors even have RC 4 certification, and thus protect even against experienced perpetrators.

Precious energy is often lost through insufficiently insulated windows or doors. heroal French doors stand out for insulation values (U_W) of up to 0.72 W/m²K, and have received passive house certification by the German Dr Feist Passive House Institute. Thermally separated profiles, innovative fitting technology, and perfect profile geometries keep the energy loss through aluminium French doors to a minimum. The efficiency of a French door in terms of thermal insulation and heat transfer is expressed by the U-value (heat transfer coefficient). The U-value describes how much energy per m² surface of a French door is lost from inside to the outside. The lower the U-value, the less heat is lost, and the more energy-efficient is the French door. The insulation value required for your French door also depends on the building as a whole. An insufficiently insulated old building, for example, needs to fulfil other requirements than a modern passive house. Therefore, it might be a good idea to get additional information from a professional energy consultant.

Being exposed to permanent noise pollution has a negative effect on our well-being and health. To keep the noise out and make you feel perfectly fine, heroal French doors are available with sound insulation including class 5, according to German industry norm DIN 4109. Thanks to the modular design of heroal French doors, the sound reduction index can be adapted to your individual requirements, or already existing elements, for example windows. Sound levels may be reduced by up to 48 decibels. To achieve this, the thickness of the glass as well as the professional installation of your French door play an important role, but also the frame profile including sealants, the set-up of the sealing zone, the face width, the foam filling, and the material used. Aluminium is perfectly suited for soundproof French doors, thanks to excellent thermal insulation values. heroal developed its own foam fill process for frames and sashes of French doors, which does not only ensure that the profiles are 100 % filled, but also stands for the ideal reflection and absorption of noise. This way, excellent sound insulation can be guaranteed even with slim face widths.

The requirements on sound insulation may be quite different. To enjoy perfect comfort of living, ask your heroal partner to find out which sound insulation class is best for you. Use our heroal specialist partner search to find a suitable fabricator near you.

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Protect your home against uninvited insects with a suitable heroal insect screen . Frequently used passages to go out on the terrace or balcony allow mosquitoes, flies or wasps to enter your rooms. heroal insect screens are individually manufactured according to your requirements, and custom-fit to your French window. The wide range of different types of fabric (gauzes) not only offers various design options, but also special fabrics for allergic people and pet owners - and all this with maximum air permeability and transparency. Thanks to the durable and highly weather resistant heroal hwr powder coating of the aluminium components, the insect screen can be perfectly colour-coordinated with the French door, creating very subtle looks.