German roofs are poorly insulated. The consequences: It is heated and burned like hell. This not only heats the climate, but also burns a hole in your wallet. Therefore, it is of advantage to think about the proper insulation of the roof.

In the Winter are roof works difficult to perform, therefore, the warm Season of the year for rehabilitation offers work for you. Before you rush in work, take a Moment to plan. And watch out: Just at the financing you can get support.

Various insulation types - different advantages

the insulation of the roof is not the same as roof insulation. In addition to the Material and the insulation thickness, there are large differences in the type of installation. Here it is not a panacea, but different advantages and disadvantages to weigh. And, of course, in the end it is also a question of money. FOCUS Online insulation calculator (display) Save with proper insulation - now calculate!

rafter

When the rafter is placed the insulation material above the wooden construction of the roof. This timber construction, rafters, is located directly under the roof tiles. The Problem: The bricks must be covered. This can cost a lot. However, the above-rafter insulation is the most efficient way of Heating costs, because it has an advantage: There are no thermal bridges. The rafters are small gaps between the Wood and the insulation through which heat is lost. Around the home

did you know? Because of the poor insulation and cold Spots in the external envelope of a building's heat escapes, be they bridges, experts called heat bridges - not cold, as some people think. About the experts

Mathias Klement managing Director and Chief Product Officer (CPO) of around home, an Online Portal for over 50 professional services around the house. He is head of the Germany-wide customer consultation and has also been responsible for the strategic development of the product range.

between-rafter insulation

The installed insulation between the rafters, as the Name suggests, between the rafters. In addition, you will be glued to it with a vapour barrier foil. The advantage is That the roof does not need to be re-covered. The Work can be done from the inside. But there is also a large disadvantage: thermal bridges can arise. Even specialists are not able to prevent thermal bridges often completely, such as Stiftung Warentest has found. Thermal bridges should be avoided in terms of energy efficiency. The cold Spots can attract in the worst case, moisture and cause mold to grow.

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the under-rafter insulation

To heat to avoid bridges, it is worthwhile to combine insulation between the rafters with under-rafter insulation. Here, the insulating material of the inner is attached under the rafters. Thus, no gaps can arise through which heat escapes. This in turn increases the energy efficiency. Older homes that already have insulation between the rafters, can be rehabilitated in this way cost-effective. The only disadvantage is that By Attaching the rafters of the living room is reduced to a few square meters.

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do-it-Yourself or expert to instruct?

When a new one is often already in contact with a roofer that can make a recommendation and advise. However, one should not go uninformed in an interview. In the case of a roof renovation many consider to try yourself as a do-it-yourselfers, in order to save costs. Here you should be careful, because small errors can be in retrospect expensive.

What is the cost?

protect The environment and save money, all well and good, but: roof renovations are not cheap. The cost is calculated based on the roof size. In the case of a rafter is the square meter costs 70€ to 120€, for the between-rafter insulation 50 euros to 80 euros, and in the case of the under-rafter insulation 30 Euro to 60 Euro.

in order To estimate to what you have, must the roof surface be calculated. This is the most important size for the roofer. The roof area is calculated from the basic area, in combination with factors such as roof slope, the shape and the overhang. These elements complicate the calculation, so a professional company can take care of that for you. Alternatively, you can use an Online calculator.

Only on the Basis of the renovation costs to decide which Dämmungsart one chooses, however, is not useful. A reorganization for the efficient insulation can pay for itself over time. The following example calculation for a building based on how it is to be found in Germany, often to: a free-standing, unsaniertes detached house built in 1973, with 140 square meters of living space and a gable roof (roof inclination 45°). The roof is still in original condition, has not been renovated since 1973. Around the home

for example, insulation between the rafters:

in Order to meet the requirements of the energy saving regulation (EnEV), the between-rafter insulation a minimum of twelve inches thick. The cost is about€ 13,000. The annual energy cost saving of€ 700. Thus the investment would pay for itself after about 20 years. However, as already scheduled and the next rehabilitation. It is also important to note that heat can be generated bridges. Around the home

for example, above-rafter insulation:

must Also fail in the case of the roof insulation from the exterior, the layer of insulation a minimum of twelve inches thick. The cost for the above-rafter insulation are significantly higher, because at the same time, the roof covering must be renewed. Therefore, the above-rafter insulation costs 30.500€. The annual energy cost savings is approximately 700€. Please note: The costs for the rehabilitation will not pay for themselves with the savings in subsequent years.

conclusion

In the calculation of costs to consider, the larger and older – and, therefore, bad in isolation – the higher the savings in energy costs. Also, the price of Energy continues to rise in the next few years is expected. This ensures that the energy savings will be more lucrative. Moreover, the measures lead to a substantial increase in the value of the building.

The Kreditanstalt für Wiederaufbau (KfW) recommends: “Energy construction projects are complex. Therefore, it is Rebuilt when you Build and renovate a sense, an expert for energy efficiency turn. This specialized energy consultants ensures the quality of the Work – from planning to implementation. And: you need it in any case, if you want to apply for funding from the KfW. Good to know that you can get up to 4,000 Euro grant extra for his supervision.”

promotion applied for?

An efficient roof insulation increases the energy efficiency of your home, this will potentially protect the environment. The rehabilitation of the roof insulation support are, therefore, able by the KfW. Here there are two options: loan or grant.

The credit for “energy efficient renovation” is a low-interest loan with a negative effective annual interest rate of, for example, -2,43 %. Thanks to a repayment subsidy, your credit is reduced debt, and the maturity is shortened. You pay back less than you have taken.

The second way of investment subsidy 430. This was increased to 01.01.2020. Now, there is financial support of up to 48,000€ for the renovation to “KfW efficiency house” or up to€ 10,000 grant for individual measures.

is Well-prepared semi -

refurbished Who can't wait and want to save, you can prepare the restoration of your own roof by yourself. Antennas slimming, snow guard, remove and rafters abfegen is made quickly. In order to save craft costs and practice at the same time as a do-it-yourselfers. A lot of space in a little space: How we in the future, FOCUS Online/Glomex will be staying up a Lot of space in a little space: How we in the future

living Date Of Update: 28 February 2020, 16:01