Nantong Kangda devotes moisture permeable 3 ply roofing breathable foil,permeable roofing foil, since 2004, and after ten years of development, we have explored many kinds of composite membranes to meet varied market demand.

As Chinese first factory of permeable roofing foil, Nantong KangDa has been well known by both Chinese and European customers. We have the advanced technology and equipment from Italy. KangDa Brand breathable foil quality now is on the top of China and the world.

Now our membrane have exported to many countries, such as Canada, USA, UK,and most of the South European. Stable quality is key to keep our customers for long term,and continous innovation is our weapon to stand on the top of market. We have a group of excellent senior management to control cost, hi-tech R&D personnel and skilled workers to ensure product quality, so competitive price and advanced quality can be combined together in our product.

With unique fiber structure, the waterproof breathable foil can protect the construction structure from being eroded by wind and rain and strengthen the gas tightness and water tightness as well as boast good breathability which expel water vapour out of the construction, thus avoiding mould and condensation. In this way, the functions of construction can be well protected, which guarantee the energy saving and durability and good living environment. Furthermore, the waterpmoisture permeable 3 ply roofing breathable foil has low cost and small weight, ect and is now waterproof rolls which are easy to apply.

KDBG150 breathable foil is a synthetic roof underlay membrane, made of polypropylene. It is a functional membrane, it main function is to make the roof or wall breathable. The membrane is not only breathable, but also waterproofing. Because of this function, it can allow moisture to get out of roof or wall easily, and when the moisture meet cold tiles or shingles, it will be condensation as water-drop, and flow away on the breathable foil, thus keep the inside insulation dry, avoid wet or mouldy.

breathable foil is a 3 layer structure, both side of non-woven fabric is water resistant, but breathable, the middle layer is the functional breathable film; it is 100% waterproof, and 1000-2000g/24h.m2 moisture permeability.