Air Tightness at floor level
One of the most complicated details for houses with pre-cast floor slabs is to create the air tightness barrier for hollow core slabs. We want to point out the difficulties and advise how to get the problem sorted.
A common practice for air tightness here in Ireland is, to wrap the hollow core slab with air tight membrane. Attention is needed for some details, to achieve the best possible air tightness performance.
Some air tightness details can be made more simple but with the same efficiency, by using the right air tightness materials and air tightness strategies.