Frequently Asked Questions
Greenline House is an online platform for calculating and presenting life cycle based carbon footprints of wooden houses.
How does it work?
House manufacturers enter their production information such as working hours and material consumption into our online calculator, which then calculates carbon footprints for the entire house based on life cycle carbon footprint data.
How accurate is the data?
Life cycle data is taken from the EU reference life cycle database ELCD3, scientific literature or Environmental Product Declarations and is calculated based on ISO 14067. However, due to normalisation and standardisation of source data, the calculated carbon footprint does not substitute a full-scale life cycle analysis and should be used as an indicative value.
How are wooden houses compared to brick houses?
The quantified carbon footprint comparison of wooden and brick houses is made by using weight coefficients based on multiple articles that compare similar-sized wooden and brick houses. There are two main aspects that enable a good comparison with brick houses - 1) the weight of an equivalent brick house is always larger by a certain coefficient, 2) brick houses do not sequester carbon inside their structure due to lack of wood (interior design excluded in both scenarios). It is therefore always an unfair comparison, as wooden houses become carbon stores, whereas brick houses will always remain carbon emitters.