Laying attic is often a good solution to gain a few square meters and thus create a new living space: a games room, a guest room … Here you will find our best advice to make the most of the space under the roofs. Feasibility, steps, steps, cost … Ask yourself the right questions before embarking on this new project.
– I’m laying out my roofs step by step
– Framing and roofing: what should I do?
– Floor and stairs: what to know
– Make insulation a priority
– How to partition and develop my attic?
1. I’m laying out my roofs step by step
Before going back to the attic to repaint the walls, follow the steps necessary to properly decorate your attic. You will need to do some work before taking full advantage of your new square meters.
Reinforce the frame
Create a floor and stairs
Reinforce the insulation
Decorate and decorate
2. Framing and roofing: what should I do?
First of all, check the condition of your roof structure.
If the slope of your roof is more than 30 ° and you have a ridge height of 1.80m (the minimum for a space to be habitable): bingo! You will not have to modify the roof. If this is not the case, or if your frame is a so-called “industrial” frame, it will probably require some work to raise or enhance the roof. Also consider the installation of roof windows, type Velux (simple to install and economic), essential to ventilate and bring light under the eaves.Objective: to create a bright and pleasant space.
Good to know: if you change the appearance of your home or increase your floor area by more than 20m2 you must file a building permit. Also remember to contact your insurance to make the modification of the “home” contract.
3. Floor and stairs: what to know
When deciding to build your attic, you will probably create a floor, or even a staircase if it does not exist. The floor of your former loft must be passable and able to support the weight of your planned facilities. Know that a floor must be able to support 150kg / m2 minimum.
Price side: for a surface of 40 to 60 m2, whose roof slope is between 35 ° and 45 °, with a transformation of the frame, a reinforcement of the floor, a installation of roof windows, a staircase, and counting insulation, partitioning, plumbing and electricity, between € 40,000 and € 60,000.
4. Make insulation a priority
The thermal and acoustic insulation of your attics needs to be cared for, both at the roof, the walls and the floor. And even more so if you opt for independent electric heating. Your insulation will have to be efficient. To isolate is also to save energy and gain comfort. Also remember to set up a ventilation system (VMC) to avoid moisture problems.
Good to know: thermally isolate the attic is to undertake an energy renovation. A good point, since these works are eligible for financial assistance, especially if you use an enterprise RGE (Recognized Guarantor of the Environment). Find out about: www.renovation-info-service.gouv.fr
5. How to partition and develop my attic?
Once finished work you can then arrange your attic freshly retapés. Everything depends on the type of space you want to create: a bedroom, a games room, a giant dressing room, a bathroom … In any case, prefer light materials for flooring and partitions (pluto placo plaster and tiles), which will be less heavy to bear for your floor.
Tip: Avoid multiplying partitions to keep a space airy. Sliding panels or glazed partitions can be a good solution to maintain the depth of the space.
Tip: the lower parts on the slope are the ideal place to build closets and storage areas and optimize the space without losing any squares.