Roofing Paper Nz

Covertek 401 is an absorbent and breathable synthetic roof underlay constructed using a microporous water resistant film sandwiched between two layers of shrink resistant spun bonded polyolefin.

Roofing paper nz.

Highly water vapour permeable allowing excess water vapour that may otherwise condense in the wall structure to escape. Considerations for which way to run the underlay for horizontally laid material. Separation insulation exterior cladding over building paper profiled metal roofing roofing underlay continuous over ridge ridge flashing purlin ceiling lining exposed rafter interior lining insulation rafter building paper air barrier over t g purlin. Thermakraft 215 building paper bituminous self supporting wall and roof underlay for use in residential or commercial walls and roofs.

It is produced in roll form. Designed and made in new zealand a lightweight high strength underlay suitable for use unsupported where fire retardancy is not required. New zealand has a wide range of environmental conditions from harsh west coast beaches to snowy alpine regions your local conditions will determine which roofing materials are suitable for your project. Covertek 401 is an absorbent and breathable synthetic roof underlay constructed using a microporous water resistant film sandwiched between two layers of shrink resistant spun bonded polyolefin.

Roof cladding on underlay and wire mesh support 25 mm min. Bayonet galvanised 50mm and 75mm wire netting is suitable for supporting building paper or roofing underlay when the wire netting is supported by timber or steel roof or wall framing. Designed and made in new zealand a lightweight high strength underlay suitable for use unsupported where fire retardancy is not required. Roofing felt one common type of tar paper is a glass fibre or polyester fleece impregnated with bituminous material tar asphaltic bitumen.

50mm mesh size must be used where the wind zone is very high or where heavy weight underlay is to be used e g. Over the last 30 years with innovative architectural designs and introduction of new and different roof systems into the new zealand market much has changed and the career of a roofer or roof supplier can be an interesting and. In all non residential roofing systems. See the chart below for more information on environmental categories and recommended materials.

Ridging standard with soft edge ridging is used at the apex of a roof or at the hip joints to weatherproof the gap that is created at the high point where two sheets meet at the ridge apex or hip end. Running the sheets vertically allows the paper to be quickly covered by the roofing but it is possible to progressively lay the paper horizontally by using a number of rolls on the roof and progressively unrolling by one roofing sheet width. Roofing is a winning specialist trade roofing has evolved to become a skilled specialist trade and is largely regulated under the government s licensing scheme.