-
Twinwall Polycarbonate Sheet Opal 3500mm x 1050mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £50.00 £60.00 -
Twinwall Polycarbonate Sheet Bronze 4500mm x 2100mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £125.97 £151.16 -
Twinwall Polycarbonate Sheet Opal 4000mm x 1250mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £68.04 £81.65 -
Triplewall Polycarbonate Sheet Bronze 4000mm x 1250mm x 16mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £111.10 £133.32 -
Twinwall Polycarbonate Sheet Opal 3000mm x 700mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £28.55 £34.26 -
Flashing Tape Grey 3m x 250mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £10.48 £12.58Sale price £10.48 £12.58 Regular priceUnit price per£0.00 -
Flashing Tape Terracotta 10m x 150mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £15.98 £19.18Sale price £15.98 £19.18 Regular priceUnit price per£0.00 -
Twinwall Polycarbonate Sheet Bronze 5000mm x 700mm x 10mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £47.64 £57.17 -
Polycarbonate Multiwall Breather Tape 10m x 3.8cm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £6.95 £8.34Sale price £6.95 £8.34 Regular priceUnit price per£0.00 -
Flashing Tape Terracotta 10m x 100mm
Vendor:B4L Roofing
Free delivery on orders over
£450£540
Regular price £11.48 £13.78Sale price £11.48 £13.78 Regular priceUnit price per£0.00 -
Triplewall Polycarbonate Sheet Clear 2500mm - All Sizes
Vendor:B4L Roofing
Free delivery on orders over
£450£540
from
Regular price£36.51 £43.81 -
Twinwall Polycarbonate Sheet Clear 6000mm - All Sizes
Vendor:B4L Roofing
Free delivery on orders over
£450£540
from
Regular price£57.13 £68.56 -
Triplewall Polycarbonate Sheet Opal 3000mm - All Sizes
Vendor:B4L Roofing
Free delivery on orders over
£450£540
from
Regular price£46.63 £55.96 -
Ronseal Isoflex Liquid Rubber Black - All Sizes
Vendor:Ronseal
Free delivery on orders over
£450£540
from
Regular price £27.62 £33.14Sale price £27.62 £33.14 Regular priceUnit price per£0.00 -
Ronseal Thompsons 10 Year Roof Seal 4 Litres - Black
Vendor:Ronseal
Free delivery on orders over
£450£540
Regular price £45.55 £54.66Sale price £45.55 £54.66 Regular priceUnit price per£0.00 -
Ronseal Thompsons Emergency Roof Seal - 2.5 Litres
Vendor:Ronseal
Free delivery on orders over
£450£540
Regular price £45.71 £54.85Sale price £45.71 £54.85 Regular priceUnit price per£0.00 -
Ronseal Isoflex Liquid Rubber Black - 2.1 Litres
Vendor:Ronseal
Free delivery on orders over
£450£540
Regular price £61.40 £73.68Sale price £61.40 £73.68 Regular priceUnit price per£0.00 -
Ronseal Isoflex Liquid Rubber Black - 750ml
Vendor:Ronseal
Free delivery on orders over
£450£540
Regular price £27.62 £33.14Sale price £27.62 £33.14 Regular priceUnit price per£0.00 -
Ronseal Isoflex Liquid Rubber Black - 4.25 Litres
Vendor:Ronseal
Free delivery on orders over
£450£540
Regular price £90.75 £108.90Sale price £90.75 £108.90 Regular priceUnit price per£0.00 -
Novoproof FA EPDM Membrane With Butyl Strip - All Size
Vendor:Qualitape
Free delivery on Qualitape orders over
£260£312
from
Regular price £34.75 £41.70Sale price £34.75 £41.70 Regular priceUnit price per£0.00 -
Novia VariCheck FR AVCL (1.5m x 50m)
Vendor:Novia
Free delivery on orders over
£450£540
Regular price £138.99 £166.79Sale price £138.99 £166.79 Regular priceUnit price per£0.00 -
Novoproof Kleber FA EPDM Glue Sausage x 600ml (Box of 12)
Vendor:Qualitape
Free delivery on Qualitape orders over
£260£312
Regular price £140.87 £169.04Sale price £140.87 £169.04 Regular priceUnit price per£0.00 -
Novia Reflective Membrane Lap Tape 60mm x 50m
Vendor:Novia
Free delivery on orders over
£450
£540
Regular price £9.75 £11.70Sale price £9.75 £11.70 Regular priceUnit price per£0.00 -
Novia UV Facade Fr Breather Membrane DIY Kit
Vendor:Novia
Free delivery on orders over
£450£540
Regular price £257.45 £308.94Sale price £257.45 £308.94 Regular priceUnit price per£0.00 -
Novia Ultraviolet Lap Tape (UVLT 75mm x 25m)
Vendor:Novia
Free delivery on orders over
£450
£540
Regular price £22.92 £27.50Sale price £22.92 £27.50 Regular priceUnit price per£0.00 -
Novoproof FA EPDM Membrane - All Sizes
Vendor:Qualitape
Free delivery on Qualitape orders over
£260£312
from
Regular price £18.60 £22.32Sale price £18.60 £22.32 Regular priceUnit price per£0.00 -
Novia STRP AVCL DIY Kit
Vendor:Novia
Free delivery on orders over
£450£540
Regular price £232.22 £278.66Sale price £232.22 £278.66 Regular priceUnit price per£0.00 -
Novoproof EPDM Cleaner x 5L
Vendor:Qualitape
Free delivery on Qualitape orders over
£260£312
Regular price £81.75 £98.10Sale price £81.75 £98.10 Regular priceUnit price per£0.00 -
Novia VariCheck FR AVCL DIY Kit
Vendor:Novia
Free delivery on orders over
£450£540
Regular price £189.67 £227.60Sale price £189.67 £227.60 Regular priceUnit price per£0.00 -
Novia FlamePro A1 FR AVCL 1.48m x 50m (74m2)
Vendor:Novia
Free delivery on orders over
£450£540
Regular price £394.52 £473.42Sale price £394.52 £473.42 Regular priceUnit price per£0.00 -
Building Paper Membrane 25m x 1m (25m2)
Vendor:Midland LeadRegular price £54.05 £64.86Sale price £54.05 £64.86 Regular priceUnit price per£0.00 -
Cladshield Breather Membrane
Vendor:Proctor
Delivery charges calculated at checkout
Regular price £127.98 £153.58Sale price £127.98 £153.58 Regular priceUnit price per£0.00 -
Lead Underlay Membrane 25m x 1m (25m2)
Vendor:Midland LeadRegular price £54.05 £64.86Sale price £54.05 £64.86 Regular priceUnit price per£0.00 -
1200 Gauge Visqueen Vapour Barrier DPM 100m2 (50m x 2m)
Vendor:VisqueenRegular price £215.80 £258.96Sale price £215.80 £258.96 Regular priceUnit price per£0.00 -
Geotec 220PY Lead Underlay - 50m x 1m
Vendor:Calder
Free delivery on orders over
£450£540
Regular price £42.10 £50.52Sale price £42.10 £50.52 Regular priceUnit price per£0.00 -
T-Barrier Pitched Roof - All Sizes
Vendor:ARC
Free delivery on orders over
£450£540
from
Regular price £61.47 £73.76Sale price £61.47 £73.76 Regular priceUnit price per£0.00
Roofing Membranes | Roofing Membrane
Welcome to the Roofing Membranes category on Build4Less, where we offer a comprehensive range of roofing membrane solutions for various applications. Our collection, featuring top brands such as Proctor, Tyvek, Rooftec, Danosa, and more, is designed to meet a wide range of roofing needs.
Vapour Control and Air Tightness Membranes
Our selection includes a variety of vapour control layers and air-tightness membranes, such as Procheck Premier 500, Tyvek Housewrap, and Wraptite Self-Adhesive Membranes. These products are essential in managing moisture and air permeability in buildings, ensuring long-term durability and energy efficiency.
Breather Membranes
Breather membranes like Frameshield 100 and IKO Rubershield provide excellent protection against moisture while allowing the roof to breathe. They are perfect for maintaining the integrity of your roof structure by preventing moisture buildup.
High-Performance Options
For more demanding applications, we offer high-performance options like Tyvek Supro Plus and Proctor Roofshield. These membranes are designed for superior weather resistance and durability, making them ideal for challenging environments.
Specialised Solutions
Our range also includes specialised solutions like Ridge Rolls for targeted applications and Danosa Torch On Underlay for extra protection. These products cater to specific roofing requirements, ensuring comprehensive coverage.
Reflective and Fire-Resistant Options
For enhanced thermal efficiency, consider our reflective membranes like Reflectashield. Additionally, for heightened safety, we provide fire-resistant options such as Tyvek Firecurb Housewrap.
DIY Kits and Repair Solutions
The category also features DIY kits like Black+ Breather Membrane Kits and repair solutions like Membrane Repair Tape, enabling easy installation and maintenance.
Diverse Material Options
We offer membranes in various materials, including self-adhesive, aluminium-faced, and torch-on options, catering to different installation preferences and requirements.
Variety of Sizes
All our products are available in multiple sizes, ensuring you can find the perfect fit for your project.
Our roofing membranes are chosen for their quality, performance, and reliability. Whether you're looking for moisture management, energy efficiency, or specific functional needs like fire resistance or thermal reflection, our range has you covered. Explore our collection to find the perfect roofing membrane for your project.
Benefits of Roofing Membranes
- Weather protection: Stops rain, snow, and wind from penetrating the roof structure.
- Breathability: Allows vapour to escape, preventing dampness and timber decay.
- Improved insulation performance: Keeps insulation dry for long-term energy efficiency.
- Air-tightness: Reduces heat loss through uncontrolled airflow and draughts.
- Extended roof lifespan: Prevents moisture build-up that can damage rafters and sheathing.
- Versatile installation: Suitable for new builds, re-roofing, and both pitched and flat roofs.
Applications of Roofing Membranes
Roofing membranes are used in a wide range of construction projects, including:
- Pitched roofs — under tiles or slats to protect against wind-driven rain.
- Flat roofs — as part of multi-layer systems for total waterproofing.
- Timber frame walls — to enhance breathability and moisture control.
- Attics and lofts — to control condensation and prevent mould.
- Commercial and industrial roofs — where reliable vapour and weather control are essential.
Installation Tips
- Always install membranes with the correct side facing out (refer to manufacturer’s instructions).
- Overlap horizontal joints by at least 100mm and vertical joints by 150mm for watertight protection.
- Seal joints and penetrations using compatible membrane tapes or sealants.
- Avoid tears or punctures during fitting; repair any damage immediately with membrane repair tape.
- For VCLs, ensure full continuity — especially around rafters, service penetrations, and junctions.
- On flat roofs, apply torch-on membranes with proper primer and safe torch technique, ensuring full bond between layers.
Why Choose Build4Less?
- Trusted Brands: Stocking top names like Tyvek, IKO, Proctor, Rooftec, and Danosa.
- Expert Support: Our team can guide you in choosing the right breather, vapour, or waterproof membrane for your project.
- Competitive Pricing: Enjoy trade-friendly prices and bulk-order discounts.
- Fast UK Delivery: Reliable nationwide delivery straight to the site.
- Quality Assured: All membranes meet or exceed UK building regulations and BBA certification where applicable.
Rated Excellent



