- Good exposure for the house
- Layout, orientation, protection: 3 levers against heat at home
- You want to insulate your attic at € 1?
- Materials in the layout
- The inertia of building materials
- The insulation of the house
- What orientation for the veranda?
The exposure of the house has consequences on the comfort it provides. Its location, its openings... everything must be well dosed!
Good exposure for the house
- On the coldest façade, openings must be small and equipped with double or triple glazing.
- The least used rooms can be located there: garage, kitchen, laundry room, boiler room, W-C...
- They will be less heated in winter and serve as a buffer zone between the outside and the living rooms.
- In summer, you can enjoy the coolness of the facade to ventilate the house.
- The rooms enjoy the morning sun, are in the shade from noon, and enjoy the cool evening.
- This orientation is ideal for a kitchen with dining area.
- It is possible to arrange an office, a child's room, more frequented at the end of the day, a bathroom or a workshop.
- The rooms enjoy the low sun of winter and its free heat.
- The light that enters the house turns into heat in contact with walls and furniture: this orientation is ideal for a veranda.
- In summer, this is a disadvantage and a fixed or mobile sun protection is essential.
- Avoid roof windows: this orientation is reserved for living rooms, dining room, living room, living room...
- The rooms stay in the shade all morning and enjoy sunshine until sunset.
- In winter, we will appreciate this heat. However, in summer, the rays will penetrate to the bottom of the rooms with a very high risk of overheating and glare. Occultations are then essential (shutters, vegetation).
- To arrange on this side the storage rooms, the circulations, and the rooms where these strong heats will not be annoying.
Layout, orientation, protection: 3 levers against heat at home
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Materials in the layout
The conductivity of materials influences their surface radiation.
Soft woods are more insulating because they heat up much faster than mineral products (tiles, stone...). A bathroom dressed in wood will therefore be more comfortable quickly than if it is covered with faience.
The inertia of building materials
Acting as a retarder, the inertia of the materials is an indispensable weapon to fight against the strong differences of temperature. Thus, in summer, some of the heat is "stored" in the walls during the day and released at night.
This phenomenon makes it possible to lower the temperature of a house by 2 to 3° C, which may be enough to benefit from a pleasant atmosphere at 26° C. For this, it is necessary that the walls with high inertia are placed inside and that the insulation is placed outside. Otherwise, the effects are greatly reduced.
The insulation of the house
Savings, energy and cost, insulation is a key element of thermal comfort: it determines the temperature of the walls, whatever the season.
At equal temperature, a poorly insulated room with cold walls is uncomfortable, while an insulated room with walls at the same temperature as the air is pleasant.
What orientation for the veranda?
To fully enjoy the warmth of a porch without risking overheating in the summer, it is advisable to implant south and put in place sun protection (opaque cover unfolding, blinds, etc.). A separation between the interior of the house and the veranda will control and dose the heat input.
In winter: the heat of the sun is captured by the veranda and diffused in the house by the VMC.
In summer: the sun protection limits the exposure, the ventilation evacuates the heat towards the outside.