PVC Wall Flashing for Corrugated Bitumen Sheet Profile - Onduline - BTM-WF

Protect your structure with our PVC Wall Flashing, specifically designed to seamlessly fit standar...

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B&QB&Q - Pvc Black Wall Flashing For Corrugated Roof Bitumen Sheet ProfileFits BituroofOndulineCorolineGutta920mm
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Product Information

Full details

This Onduline PVC Wall Flashing (BTM-WF) is designed for DIY enthusiasts and professionals seeking a reliable weatherproofing solution for corrugated bitumen sheets. It offers a seamless fit and superior protection against water ingress, ensuring the longevity of your roofing or cladding projects. A potential caveat is its specific compatibility with 95/38 profile sheets, requiring users to verify fit with their existing materials.

All features

Model Part NumberBTM-WF
BrandOnduline

Extended Product Information

FAQs

What profile of corrugated bitumen sheet does this flashing fit?

This PVC Wall Flashing is designed for the 95/38 profile, commonly used by brands like BituRoof, Onduline, Coroline, and Gutta.

Can this flashing be used for any roof-to-wall connection?

Yes, it is ideal for roof-to-wall connections, as well as for cladding and other junctions where a watertight seal is required with corrugated bitumen sheets of the correct profile.

How do I cut the flashing to size?

The PVC flashing can be easily cut using a sharp utility knife or a fine-toothed saw. Measure carefully before cutting.

What is the flashing made of and why is that important?

It is made of premium quality PVC, which is durable, lightweight, and highly resistant to UV rays, moisture, and corrosion, ensuring a long lifespan without degrading like metal.

Do I need special tools for installation?

Standard DIY tools are sufficient, including a utility knife for cutting, a measuring tape, and a drill with appropriate screw bits for fastening. Roofing screws and washers are also required.

How long will this flashing last?

Due to its durable PVC construction and resistance to UV and corrosion, the flashing is designed for long-lasting performance, typically many years, when installed correctly.

Can I paint the flashing?

While PVC is durable, painting is generally not recommended as it can affect the material's properties or UV resistance. It is designed to be used as-is.

Troubleshooting

Flashing does not seem to fit securely.

Verify that your corrugated sheets are the 95/38 profile. Ensure the flashing is correctly positioned to overlap the sheets and wall as intended. Check that screws are adequate and correctly fastened.

Water ingress observed after installation.

Inspect the entire length of the flashing for gaps or potential entry points. Ensure all fixings are secure and that the flashing overlaps adequately. Consider applying a compatible sealant along the top edge if there are persistent issues.

Flashing appears to be degrading or cracking.

This is uncommon with standard UV exposure. Ensure no harsh chemicals were used for cleaning. If degradation is significant, the flashing may need replacement. Check for any specific installation errors that might be causing undue stress.

Pros and Cons

Pros

  • Ensures a professional and watertight finish.
  • Durable construction resistant to environmental factors.
  • Compatible with a wide range of popular bitumen sheet brands.
  • Easy to install, saving time and labor costs.
  • Provides excellent protection against water damage.

Cons

  • Primarily designed for the 95/38 profile, may not fit other profiles.
  • Requires proper installation techniques for optimal weatherproofing.
  • Can be less aesthetically refined than some metal flashing options for certain applications.

Setup, Compatibility & Care

Compatibility:

This flashing is specifically designed for corrugated bitumen sheets with a 95/38 profile. It is confirmed to fit leading brands such as BituRoof, Onduline, Coroline, and Gutta. Always double-check the profile of your existing sheets to ensure a proper match before installation.

Setup & Installation:

  1. Preparation: Ensure the wall and roofing surfaces are clean and dry.
  2. Cutting: The PVC flashing can be easily cut to the required length using a utility knife or fine-toothed saw.
  3. Positioning: Place the flashing so it overlaps the corrugated sheets and extends sufficiently up the wall to prevent water ingress.
  4. Securing: Fasten the flashing securely using appropriate roofing screws and washers, ensuring they penetrate through the flashing and into the structural elements or fixing points of the bitumen sheets. Do not overtighten.
  5. Sealing: For added security, a bead of compatible exterior-grade sealant can be applied along the top edge where the flashing meets the wall, though often the overlapping design is sufficient.

Care:

The PVC material requires minimal maintenance. Periodically inspect the flashing for any signs of damage or dislodgement. Cleaning can be done with a damp cloth and mild detergent if necessary. Avoid using abrasive cleaners or solvents that could damage the PVC.

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