Reasons Why You Should Choose Passivhaus

In the recent years, passivhaus or passive house has become very popular. We can find many people who are opting for this option. There are many good things about this option, and some of them are mentioned herein below:

• One of the best things about passive house is that this type of a house is energy efficient. During summers, it will give you a cool effect, and during the winters, it will give a hot effect.
  
  
• The other reason why most of the people prefer this option these days is because this house can be dismantled and again be constructed without taking much time. This type of house is made in the factories. One has to provide the passivhaus construction companies with all the details that are required to build one such house. The companies come up with exactly the type of house that the individual wants.
  
  
• One of the advantages of this house is that of passivhaus retrofit. It means that even if this house is constructed and installed in the area you have mentioned, you can still get the changes done as per your wish. If you think any more modifications are required, then also you can get it done.

Apart from these, there are many other benefits of going for a passivhaus. But the only thing you need to keep in mind is that of getting in touch with a company that uses the best quality materials while making this house. So, if you want a passivhaus, then start looking for a company that offers the best quality passivhaus.

Passive House – An Environmentally Friendly Building

Are you a person that cares for the environment? If so, you must be interested in knowing about an environment friendly home. Many people might not be aware of passive house and its benefit. Neither little do they know about the effect it has on the environment. The fact is passive house creates a greener living options for us.

An ordinary house consumes energy and releases a little bit of heat. While a passive house collects the radiant heat and repurposes it to keep the home warm inside. This special designed house uses airtight shell, insulation, air filter system, vent system and selective windows. These factors creates comfortable environment without much use of the electricity.

The passive house construction was invented in Europe about 10 years ago. After finding success in providing energy efficient home, these techniques were used in many buildings in different countries in Europe. The passive house helps in keeping the environment safe. The high quality air filter used in these houses produces best indoor air quality without sending the filtered air waste out to the environment. Thus, protects the air from pollution.

There are few factors for making a home energy efficient or qualify for calling “passive” home. Firstly, the home must have an airtight shell so that heating and cooling that is happening inside remains inside. The home should have high quality insulation layer installed to keep the energy and heat inside. The passive house should employ vent system meant for filtering and collecting heat emissions which electronics installed house produces. And lastly, the windows of the houses should be specially design and set up so that it can take full advantage of the solar heat for heating the home naturally.

Importance of Enerphit Standard in Passivhaus Refurbishing Constructions

The usage of Passive House components in the refurbishment of any existing building brings many extensive improvements like thermal comfort, economic efficiency, absence of structural damage and climate protection. Such projects have caused a great reduction in the heat energy demand and have achieved this objective by 90%.

Achieving the Passive House Standard in refurbishing the existing buildings is not a realistic goal. Reason being, the basement walls are remained avoidable thermal bridges even after refurbishment. To attain such refurbishing, Passivhaus Institute has established EnerPHit for certified energy retrofits with Passive House Components. This certification needs a maximum heating demand of 25 kWh/(m²a) or alternatively the consistent use of Passive House components in accordance with the requirements for PHI certification of components. PHPP calculates the heating demand and the quality of the thermal protection.

If the certification criteria for a Passivhaus are met while refurbishing, then the building can be certified for a "Quality-Approved Passive House" based on the same criteria as for new buildings.

However, sometimes it is really difficult to achieve the Passivhaus standard for older buildings with reasonable effort. The use of Passivhaus technology for all relevant building components in existing buildings does lead to considerable improvement in respect of thermal comfort, structural protection, cost-effectiveness and energy requirements.

Those buildings that have been refurbished using Passivhaus components and largely with exterior wall insulation can be certified to the EnerPHit standard as a proof of quality assurance and to obtain the specific energy values.

The designation EnerPHit+i is used if more than 25 % of the opaque exterior wall surface has interior insulation. It will be likely that moisture analysis will be needed where opaque elements are insulated internally.

Here is the standard relaxed certification criteria indicated below for Passivhaus Construction under Enerphit standard:

Criteria                                  Passivhaus                          EnerPHit

Specific Heat Demand        ≤ 15 kWh/m².yr                  ≤ 25 kWh/m².yr

Primary Energy Demand    ≤ 120 kWh/m².yr               ≤ 120 kWh/m².yr *

Limiting Value                        n50 ≤0.6-1                        n50 ≤1.0-1

* PE ≤ 120 kWh/m².yr + ((SHD - 15 kWh/ m².yr) x1.2)