Abstract:

This thesis work has been conducted at the Real Estate Department in Halmstad.

The department consists of a construction/project management-unit and an operation/management-unit.

Like many other towns in Sweden, Halmstad has had a long lasting problem with indoor environment. Not at least at their preschools.

Today they are constructing from current building regulations. They have learned from negative experiences which have occurred in the indoor environment in older buildings.

Focus is now on healthy materials, like low emission value, energy efficiency and optimization of the building, but still with soft parameters such as cleaning, interior and choice of materials.

The fixtures is provides by the real estate department and the furnishings are provides by the children and youth administration. Together they are trying to provide a great indoor environment.

I have, together with the real estate department and the children and youth administration of Halmstad, investigated how to provide a good indoor environment in the preschools with small funds.

In my thesis there is one theoretical part with a questionnaire survey of how the preschool staff is experiencing their indoor environment to determine where the problems often start. And a practical part with measurements to try and come down to a result that analysis the cause of the problems and also to make sure that the ventilation systems are fulfilling projected values.

The measurements and the questionnaire surveys was made at Lokes preschool in Frösakull, Askens preschool in Oskarström and Gullbrandstorps preschool.

There were some differences between the staff-responses at the three different preschools.

At Askens preschool they feel that the premises are cleaned poorly.

At Gullbrandstorps preschool they feel that the indoor-air is bad because they can´t open the windows. The only common factor is the problems they have with the noise the children makes, which unfortunately is normal and specific for the activity.

The particle measurement shows that Askens preschool is the one with the most particles in the indoor-air, which can be the results of poor cleaning och materials that are hard to clean.

The airflow measurements didn´t show any unusual values, at those preschools where the measurements went well.