Weathertightness is the term used to describe the resistance of a building to the weather.
Since the mid 1990’s, a considerable number of houses have been built using methods that won’t withstand the weather conditions in New Zealand and therefore will not comply with the New Zealand Building Code. When it rains, some houses are leaking because of problems involving design and installation of materials. In some cases the materials themselves have been used inappropriately.
Once the water or moisture gets behind certain cladding types, and if there is no drainage and ventilation between the cladding and the framework, the water becomes trapped and the potential for fungal growth and rotting rapidly increases.
What you might also want to check out though, is a new player in the ‘Leaky House Syndrome” market…a company that researches the issues in a building, repairs under the tenets of the Dept of Building and Housing’s ‘Weathertighness Division’s prescriptions and the….warranties the property, not just for the current owner but for all future owners.
Check them out at: www.Watertightwarranty.co.nz