Posts Tagged ‘apartment’

August 22, 2016

History of ventilation: Mechanical supply and extract air ventilation introduced into apartment blocks in 1960s!

Even if mechanical extract air systems were the most common forms of ventilation solutions in housing in the 1960s, apartment blocks were sometimes built with supply and extract air solutions. However, in contrast to non-residential buildings, the return air principle was only used to a small extent....

AUTHOR: Petra Vladykova Bednarova

August 17, 2016

History of ventilation: Mechanically ventilated apartment blocks and new air flow principles in 1930!

Until the 1930s, apartment blocks around the world were ventilated exclusively using natural ventilation. However, as buildings became higher, one of the dilemmas caused by natural ventilation became clear –…...

AUTHOR: Petra Vladykova Bednarova

July 20, 2016

How satisfied are you with indoor air quality in your home after renovating it? How often do you air your house if you don´t have a mechanical ventilation?

Some interesting points from a work on renovation of apartment buildings and results from investigation of indoor air quality. The occupants indicated to be more satisfied with the IAQ before…...

AUTHOR: Petra Vladykova Bednarova

July 13, 2016

Airing of the apartments before and after renovation! Energy renovation without additional ventilation is not enough!

The energy use in the existing residential sector that was built in the second half of 20th century is considered a serious problem across the European Union. The current focus…...

AUTHOR: Petra Vladykova Bednarova

September 11, 2015

Full article about Moisture supply Set Point for avoidance of moisture damage in Swedish multifamily houses!

New article was published in 6th International Building Physics Conference about "Moisture supply Set Point for avoidance of moisture damage in Swedish multifamily houses!". The authors are Abdul Hamid A.,…...

AUTHOR: Petra Vladykova Bednarova

August 27, 2015

Moisture risk in walls in apartment buildings!

The construction used in the simulations was chosen since it is a typical construction of the building envelope in Swedish multifamily houses from 1950-1975 [5]. Also due to vapor diffusion…...

AUTHOR: Akram Abdul Hamid

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August 24, 2015

DCV, VOCs and moisture set points in a multifamily building!

A traditional mechanical ventilation system with heat recovery (MVHR) for multifamily houses runs on a constant air volume (CAV) principle. A problem, is that a CAV-system will ventilate unnecessarily much…...

AUTHOR: Akram Abdul Hamid

August 17, 2015

A task ahead for Sweden: Renovation of more than a million dwellings in apartment buildings!

To fulfill the demands by the directives of the European Union 2020 [1] and 2050 [2], Sweden must retrofit its current building stock in order to achieve a lower energy…...

AUTHOR: Akram Abdul Hamid

August 11, 2015

What is the moisture supply in apartments in Sweden?

From 1950 until 1975 approximately 1.3 million apartments were built in Sweden. Now, a considerable part of these are in need of renovation.  The DCV automatically regulates the air change…...

AUTHOR: Akram Abdul Hamid

September 2, 2014

Book about development of multi-residential buildings in Sweden in 1880-2000!

Are you interested in multi-residential buildings? Would you like to get more information on the type of your building that you live in now? Do you want more technical information…...

AUTHOR: Petra Vladykova Bednarova

April 9, 2013

Swegon Air Academy in Saint Petersburg – Part 3: What is the situation with renovation buildings in Slovakia?

In Slovakia until year 2000 they have built 18,386 dwelling houses with total number of flats 747,000 which accommodates 45% of the Slovak population. Until 1950 the residential buildings were…...

AUTHOR: Petra Vladykova Bednarova