Metal Roofing Solutions
To preserve the performance of metal roofing solutions, DuPont™ Tyvek® offers a suite of solutions specially designed to control condensation and heat build-up.
Since metal roofing is highly vapour-resistant, it is prone to condensation build-up on the underside of the sheets. Unless effective measures are taken, this trapped moisture can drip back onto the insulation and fittings, setting a cycle of deterioration in motion.
Protection That Lasts
Two key factors can weaken the weatherproof properties of profiled or standing seam metal cladding: natural weathering and the effects of thermally induced movement caused by temperature fluctuation. In both cases, the damage can include displaced waterproof seals between sheeting laps, and enlarged penetration points where the sheets are fixed. As a result, there is a greater risk of external moisture getting through – for example, in driving rain. DuPont™ Tyvek® helps to minimise the risk of this happening – by protecting your roof and your investment long-term.
DuPont™ Tyvek® offers advanced, coordinated solutions that are engineered to improve and conserve the performance of fully supported profiled metal sheet roofs.
The high vapour permeability of the Tyvek® underlay combined with high performance AirGuard® air & vapour control layer (AVCL) permits the release of vapour through and away from the insulation. The high water resistance of DuPont™ Tyvek® and AirGuard® membranes also prevents any condensed moisture beneath the outer cladding to re-enter the construction, thus ensuring the insulation operates in a dry environment. Tyvek® Metal goes even further by creating space for effective drainage and offers a reduction in sound transmission normally generated by structure-borne sounds such as rain-clatter.
DUPONT PRODUCTS & SERVICES
All Tyvek® breather membrane products
A complete listing of all Tyvek® breather membrane products
Tyvek® Supro is the market-leading breather membrane, and is a water resistant membrane suitable for all supported and unsupported pitched roof applications in commercial and residential buildings.
- Tyvek® AirGuard® Smart
Tyvek® Metal roofing underlay allows condensation to drain away beneath standing seam metal sheet roofs and improves overall airtightness.
DuPont™ AirGuard® Reflective is a low emissivity internal vapour barrier that combined with an airgap can enhance thermal comfort by reflecting up to 95% of radiant heat back into the building.
DuPont™ AirGuard® Control is a tough, transparent vapour control barrier that improves airtightness by reducing convective heat loss and air leakage while also minimising the risk of condensation in roof and wall insulation.
Tyvek® Double-sided Tape
DuPont™ Tyvek® Double-sided Tape is an advanced sealer tape that bonds all Tyvek® membranes to smooth surfaces, and seals membrane overlaps effectively.
Tyvek® Butyl Tape
DuPont™ Tyvek® Butyl Tape provides a moisture- and airtight seal between Tyvek® breather membranes or AirGuard® AVCLs and a wide range of materials.
Tyvek® Metallised Tape
DuPont™ Tyvek® Metallised Tape is a single-sided, reflective waterproof sealing tape that seals overlaps in Tyvek® Enercor® Roof, Tyvek® Reflex, and DuPont™ AirGuard® AVCLs.
Tyvek® Acrylic Tape
DuPont™ Tyvek® Acrylic Tape is the ideal single-sided tape for repair work, or for making good around windows and pipes. It provides strong, durable bonds, and is suitable for use with most Tyvek® and AirGuard® products.
Tyvek® Supro at the Jamaica Inn: Reliable resistance for a windswept cultural icon
The famous Jamaica Inn is situated 280metres above sea level on Bodmin moor. The roof of its new accommodation extension benefits from advanced breather membrane Tyvek® Supro, which is fully compliant with BS5534:2014
INFORMATION & IDEAS
Find here all the technical information about DuPont™ Tyvek® & DuPont™ AirGuard®.
- Free CPD Seminars
- Building In Energy Efficiency
Give Home Energy Efficiency a Boost
DuPont™ Tyvek® solutions can significantly improve home energy efficiency. The combination of low-emissivity, vapour-open Tyvek® Reflex and AirGuard® Reflective is particularly effective.
- Tyvek® offers unrestricted application when tested in accordance with BS5534:2014
- Tyvek® is compliant to New BS5534 Annex A
Tape Selection Guide
Find the right Tyvek® or DuPont™ FlexWrap tape with our Tape Applications Selection Guide.
Underlayment: Quality and Thickness of Functional Layers Are Critical
Tyvek® membranes are proven to resist ageing better than most common multi-layer underlayments. Even after prolonged exposure to UV radiation and heat, Tyvek® underlayment stays watertight and provides superior condensation control.
- What Makes a Tyvek® Watertight Breather Membrane Unique?
CE Compliant Membranes
All DuPont breather membranes, including Tyvek® and AirGuard®, are fully CE compliant, and carry the CE marking required throughout Europe.
- The Tyvek® Evolution Story
- How to - Selecting the right vapour control and vapour barrier sealing tape for the job