HEAT FLOW CAN BE TRANSMITED MAINLY IN THREE MANNERS
Movement of a fluid due to a difference of temperature and density. The hot air goes up and heat is dissipated. With a ventilated roof, the heat located in the air gap between the hedging and Skytech goef up then is evacuated on the level of the ventilation holes and the ridge of the sheathing.
Transmission of heat of a body to another by contact. The more insulating the material is, the less there is conduction. The λ characteristic measures the conduction in a specific material
Describe the heat transfer without contact between two bodies. Any material absorbs and issues a thermal radiation according to its temperature. The radiation of a UV lamp can cause the flashover of a sheet of paper without any direct contact.
COMPARATIVE TABLE OF THE VARIOUS MODES OF TRANSMISSION
Conclusion :
The transmission by radiation is most important by far. it is then easy to understand all the interest of a reflective insulating material to carry out energy saving and to improve thermal comfort.
reflects the heat issued by the heating appliances towards the interior thanks to the strong capacity of reflection (95%) of WINCO reflective insulation products. Its very low emissivity (λ = 0,05) reduces considerably the losses by radiation towards outside. It allows energy saving and an immediate comfort.
In summer :
With its reflective surfaces, SKYTECH® is a genuine thermal barrier. it reflects heat in the form of infra-red radiation in the higher air gap. This air gap is ventilated by the ventilation holes, sewer and ridge sheathing. By its very low emissivity, WINCO reflective insulation products limit the thermal radiation towards the roofs. It makes it possible to reduce the use of air-conditioning while increasing comfort.
A roof underlayment provides several functions :
- Protect the roofs against the penetration of water, powder snow, dust, wind, intrusions of insects and birds and slow down pollution.
- Collect and lead to the sewer the accidental water infiltrations, caused by the rupture or the displacement of an element of hedging (slate, tile) or by possible condensation under face of breeder material.
- Contribute to limit the rising of the discontinuous elements of hedging under the effect of the wind by balancing the pressures.
- Give access to lowered slopes when the DTU 40 envisage it.
- Temporarily allow the setting out of water of a building site before the installation of the hedging.
• GAIN OF LIVING AREA :
+ 5% on average on walls
+ 15% on average on attics
WINCO reflective insulating products make it possible to leave the framing (beams, rafters) apparent.
• EXPOSURE TIME-SAVINGS :
exposure time can be divided by 2. only one product to be posed (SKYTECH®) instead of 2 (traditional roof underlayment + insulating material).
WINCO reflective insulating obtained the Euroclass A2-s1, d0 (Former M0 classification) certification of incombustibility. it can thus be posed directly against the chimneys.
WINCO reflective insulating products are composed of continuous filaments of glass fibers having a very high mechanical resistance. These filaments used also in reinforcement in the composites have a lifespan of more than 50 years. They do not support the nesting of the rodents
• HEALTHY COMPONENTS
WINCO reflective insulation products are guaranteed without asbestos and chemical binder.
These filaments are classified as not carcinogen by the European directive n° 97/69/CE and I.A.R.C. (International Agency for Research on Cancer)
Specific equipment or precaution is not necessary to pose these products except sunglasses for the external installation during summer. WINCO reflective insulating products are 100% recyclable
The insulation is 100% recyclable WINCO