The Lantti house heralds zero-energy buildings

As a result of the project, a normal-sized, one-family house, with an E value of zero according to the primary energy requirements set in July 2012, was constructed for the Tampere Housing Fair 2012. The principal construction material used was wood.

The project aimed at conserving energy in all sub-areas. Use of renewable energy and the careful execution of construction work were other important considerations. Forms of energy with weighting factors most advantageous to meeting primary energy requirements were selected for the project. The house is heated by municipal heating and a water-based floor heating system that can be adjusted separately for each room. Eight square metres of solar collectors satisfy 40 per cent of annual consumption of warm water, with municipal heating warming the remainder. For electricity production, 60 square metres of efficient solar electricity panels were installed on the roofs of the residential and storage buildings.

Example of an energy-efficient single-family home

In this development project, the goal of ARA was to create an example of an energy-efficient single-family home, whose solutions could be modified for use in semi-detached and detached houses and low-rise buildings, while meeting ARA's quality criteria. The floor plan and division of elements used in the property make it highly modifiable.

Keeping construction costs under control proved to be a challenge. However, ARA believes that, in the future and in the right conditions, zero-energy single-family house projects can be implemented by ARA. Before zero-energy construction solutions can be implemented by ARA on a large scale, particularly in the case of single-family houses, there is still room for development and much remains to be learned about the exploitation of such solutions.

Sensors and monitoring systems were installed in the property, and the data collected by these will be used in research and development. The data will also be used to optimise the operation of the systems.

Funding and partners

The project received development funds and an interest subsidy loan from ARA.

Main partners were ARA, Aalto University and Finnish Innovation Fund Sitra



Published 2013-08-09 at 13:09, updated 2017-02-16 at 10:45