How to turn the soil into a residential attic.Beware of appropriate insulation

Right at the beginning, however, it is good to know that not every space under the sloping roof is suitable for creating a residential attic.Therefore, you should first contact a building expert (designer) to evaluate the condition of your soil and roof structure and recommend further steps.”

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„Při rekonstrukci podkroví je nutné podívat se na více stavebně-technických faktorů,” upozorňuje Richard Klička, odborník z oddělení stavebnin v projektových marketech Hornbach.

These include, for example, roof slope, roof condition, ground space height, pipeline guidance and the like.Construction and technical opinion is necessary for any other tasks.If you plan to change the abandoned space under the roof to residential, be aware that you need a building permit.

“From experience I always recommend entrusting requests for all permits to the hands of experts. Ušetří vám to nejen čas, ale i spoustu nervů,” radí Richard Klička.

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So that the heat does not run away

If you want to create a truly functional living space in the attic, it is necessary to thoroughly insulate the soil thoroughly.Otherwise, the attic will overheat in the summer, while in winter the spaces will remain too cold under the roof.

The attic space without proper thermal insulation responds to changes in outdoor temperature far more sensitively than rooms protected by vertical peripheral masonry.In addition, the requirements of standards for heat loss are also tightened, so the precise design of the thermal insulation is a necessary condition for successful approval of residential attic.

“Not only sufficient thickness of thermal insulation is important, but also a combination with a suitable under -roof foil. Jen tak bude střešní plášť fungovat po celý rok správně,” připomíná Richard Klička.

How right to do it

To create thermal well -being in the attic is not only a layer of insulation between rafters (oblique truss element bearing roof battens).To achieve the best parameters, it is recommended to combine up to three layers of thermal insulation: over -insightful, intermediate and insulation under the rafters.Only this combination safely meets the requirements of the thermal insulation standard.

How best to insulate living attic?Thermal insulation boards of Bramactherm Clima Comfort for overwhelming insulation.Are made of hard foam resol.

The most important is over -insulation to ensure a continuous thermal insulation layer.Insulation boards are placed on loose roof trusses that are covered with formwork.

There are no joints or thermal bridges in this form of insulation and the interior of the attic does not reduce.Compared to insulation between rafters, this insulation is up to 45 % more efficient.

The layer of inter-insulation or separate insulation under the rafters is no longer enough to meet thermal requirements.

Ventilation prevents the heat

Do you want to effectively and permanently prevent overheating of the space under the roof?It is then important to ensure that the air gap ventilation between the roofing and the roof foil.Choosing the type of roofing or its colors in this direction does not play a essential role, even a dark tin roof can be effectively ventilated.

Ways to properly ensure the ventilation of the roof cladding is several.It is important to create a sufficient ventilation gap between the roof covering and the thermal insulation layer. „Správně zrealizované odvětrání střechy bezpečně odvádí ze střechy nahromaděnou vlhkost a zabraňuje jejímu následnému protékání do tepelné izolace nebo interiéru,” zdůrazňuje Richard Klička.

You will definitely use OSB boards to build a residential attic.You can choose from supporting boards (OSB 3), high -bearing (OSB 4), non -air (AIRSTOP) and fire -resistant (FireStop).

Effective ventilation in combination with sufficient thermal insulation thickness creates an ideal attic prevention against overheating.

Access to the attic

Do not forget one more thing: if you change the attic space to the attic, you will have to secure access through a fixed staircase that must meet several parameters.

In family houses, a staircase must be at least 90 centimeters wide.There may be a maximum of 16 steps on one staircase arm.If the length of the arm exceeds 16 steps, the landing must be built on it.And for safety reasons, the staircase must not miss the railing.