When it comes to proposing solutions to improve building renovations existing ones are already conditioned by a series of pre-established design parameters, and there has probably not been a maximum use of these parameters to reduce their demand and optimize the energy efficiency of the home, especially in older ones.
The rehabilitation of old buildings that we intend to improve. Assessing which are the most appropriate possible improvement proposals, through a thorough analysis of the energy and environmental savings that would be achieved with the implementation of each measure as well as an economic study that allows us to assess their viability and amortization.
Proposals for improving a property to rehabilitate, go through increasing the thermal insulation of all the elements of the thermal envelope of the house, reducing the existing thermal bridges trying to eliminate possible pathways or sources where condensation moisture could exist, as well as trying to adapt or apply certain passive systems to the building and implement energy renewable energy sources or efficient facilities, some proposals would be the following:
Normally in facades to rehabilitate We incorporate insulation panels on the inside, SATE systems on the outside or by projecting thermal insulation in the air chambers.
If the cladding is carried out on the outside, it would be the best option since all thermal bridges are eliminated and the appearance of condensation on the enclosure is avoided, while, if it is done on the inside, we will obtain worse results, although it improves the thermal transmittance of the enclosure can leave areas with thermal bridges and allow condensation to appear.
In the case of houses located under cover, the thermal transmittance of the cover can be improved by incorporating thermal insulation, in the same way if we are in a house on the ground or first floor on an unheated premises or garages, we could incorporate it into the slab or horizontal element of separation with it.
In principle, if we find a window with a simple glass, the first option will be to replace it with a climalit, trying to provide those solutions that offer us less thermal transmittance, in principle those with a greater thickness of the air chamber. Other solutions would be:
An article of interest in glazing is that of types of exterior enclosures and glass classification for having more specific information in this section.
The most suitable areas and where the greatest amount of heat can be lost are normally the pillar and facade encounters and especially in Antique buildings since, in many cases the interior face of the pillar is seen without any type of covering, or if there is insulation it may be interrupted against the lateral faces of the pillar, the perimeter of the windows, (the lintels and jambs), as well as roller shutter drawers.
Another weak point is the roofs, which must be applied different factors to study and which are treated in detail from the roof rehabilitation article with tips and manuals of interest.
So that in this way greater comfort can be achieved without adding heat or cold and thus reducing energy consumption.
In this case, since it is an existing building, the largest energy savings will be achieved by improving the efficiency of the facilities, given that there is a greater limitation when it comes to reducing the energy demands of the home or building, also if we manage to cover the energy demand by providing renewable energy. Our goal will be to jointly implement those equipment that are as efficient as possible together with renewable energy to reduce energy consumption as much as possible and improve the rating. Some efficient systems will be the following:
Regarding the facilities, we have a more detailed article where the equipment and air conditioning systems in a house are studied in detail with their in-depth characteristics and functions.
Next we are going to add some concrete cases for improve the energy efficiency of second-hand houses in which the aforementioned improvement measures are applied, extracted from the interesting guide "efficient air conditioning systems and use of renewable energies" published by the Association of Manufacturers of Generators and Heat Emitters for Hot Water (FEGECA), being the following .
We enclose a series of files in which the specific study points on which action is taken for the benefit of improve the rehabilitation of houses.
Although this section is not discussed, the vegetation in buildings and their facades is a regulatory contribution that benefits the construction as a whole and its application should really be considered.
We can prove that there are many grants for the rehabilitation of old houses and the best thing is to consult them from the IDAE itself in the section on aid and financing in the HERE area. Where we will find the sections of:
Keep in mind that aid for home renovation They are usually scarce in Spain (Even many times from the European Union they are better) and on the other hand there are always those of the Autonomous Communities and even provincial ones where it is better to consult directly from the local administration or the town hall where theproperties to rehabilitate.
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