Roofshield®: Setting the Standard for Air and Vapour-Permeable Roofing Membranes
For nearly three decades, Roofshield® has been at the forefront of air and vapour-permeable roofing underlays, delivering exceptional performance and reliability. Manufactured exclusively by Don & Low in Forfar, Scotland, this innovative membrane combines advanced design, strength, and proven results to offer an unrivalled roofing solution.
Enhanced Strength and Durability
Thanks to recent advancements by Don & Low’s in-house R&D team, Roofshield® now boasts a weight of 196 grams per square metre, making it heavier and stronger. This enhancement provides increased durability and protection under demanding conditions, making it ideal for long-lasting roofing solutions in challenging environments.
Innovation and High Performance
Roofshield®’s patented Spunbond Meltblown Spunbond (SMS) structure ensures high airflow levels while facilitating moisture vapour transport, drastically reducing the risk of interstitial condensation. Unlike conventional membranes that depend on airtight VP film layers, Roofshield® offers a breathable, efficient solution that eliminates the need for additional ventilation products. It reduces material and labour costs and speeds up installation, helping projects stay on schedule.
Efficient Moisture Management
Condensation is a growing concern in modern, airtight buildings. Roofshield® addresses this challenge by allowing moisture vapour to escape while protecting against water ingress, creating healthier and more efficient roofing systems. Its proven effectiveness has earned certifications from the BBA and endorsements from industry bodies like the NHBC and NFRC for use in unventilated cold roofs.
Trusted Across the Globe
Since its launch in 1996, Roofshield® has gained widespread recognition across the UK, Ireland, and even in extreme climates such as the Antarctic. Its exceptional resistance to wind loads and flexibility in batten spacing allows for use in all UK exposure conditions, allowing specifiers to choose the best outer roof-covering configurations for their projects.
Talk to Don & Low’s Construction Experts
Why Choose Roofshield®?
- Enhanced Weight and Strength: At 196 grams per square metre, Roofshield® offers durability and robust performance.
- Effortless Installation: Eliminates the need for additional ventilation products, saving time and costs.
- Immediate Weather Protection: Provides weather resistance even during installation phases.
- Sustainable Choice: Manufactured in the UK with an Environmental Product Declaration (EPD) for full transparency on environmental impact.
- Versatility: Suitable for fully supported and unsupported applications such as warm and cold-pitched roofs.
Roofshield® continues to lead the way in roofing innovation, delivering high-performance solutions trusted by thousands of customers. Whether it’s safeguarding historical buildings or meeting the demands of modern construction, Roofshield® consistently exceeds expectations.
For more information, contact Don & Low at 0808 169 4444 to discover how Roofshield® can elevate your next project.
Tailored to distinct projects, Roofshield boasts exceptional features:
Vapour Permeability
With a vapour resistance of 0.065 MNs/g and an Sd-value of 0.013m, Roofshield stands out as one of the most vapour-permeable membranes available.
BBA Certification
Fully certified for both non-ventilated warm or cold roof applications since 1996, Roofshield maintains its position as the first membrane certified for use in cold, non-vented roofs.
Air Permeability
Facilitating air movement and moisture diffusion, Roofshield prevents condensation, dealing adeptly with higher moisture levels during building drying periods.
NHBC Acceptance
With a certified air permeability of 34.4m3/m2 h.50Pa, Roofshield eliminates the need for additional high-level ventilation on NHBC-approved projects, ensuring consistent specifications across diverse projects.
Uniform Airflow
Roofshield's air permeability ensures consistent airflow through non-ventilated roofs compared to roofs ventilated per BS5250, without elaborate ventilation hardware.
No Vapour Control Layer (VCL) Required
Uniquely, the BBA explicitly states that a vapour control layer is unnecessary for non-ventilated cold-pitched roof constructions using Roofshield.
Water Resistance
Rated W1 under EN13859-1, Roofshield can endure a water column of over a meter without leakage, providing temporary weather protection to the building envelope for up to 3 months when exposed.
BS5534 Compliance
Independently tested and compliant across the UK, Roofshield, without the need for high-level ventilation or a vapour control layer remains the simplest and most cost-effective method to meet regulatory standards.
| Roofshield® Roll Insert 1.5mx50m | English | Download |
| Roofshield® Roll Insert 1mx50m | English | Download |
| Roofshield® Datasheet | English | Download |
| BBA Roofshield Certificate -Warm & Cold Roof | English | Download |
| BBA Roofshield® Certificate - Cold Roof | English | Download |
| NSAI Roofshield, Frameshield & Reflectashield Certificate | English | Download |
| BBA Information Bulletin no 2 | English | Download |
| Roofing Installation Instructions | English | Download |
| Roofshield® Installation Guide | English | Download |
| Construction Introduction | English | Download |
| Don & Low Construction Flyer | English | Download |
| Roofshield® -Frequently Asked Questions | English | Download |
| Roofshield® Flyer | English | Download |
Don & Low's extensive construction membrane range demonstrates the company's unwavering commitment to providing a complete building envelope solution that caters to the unique and constantly evolving demands of architects, house builders, and merchants. When it comes to high-performance roofing, walling, flooring, and site protection membranes, we’ve got you covered.
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