Deks Fast Flash - 5m x 280mm - Black
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B&QB&Q - Fastflash Lead Replacement 280mm Black (Ffr5-280B)
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Product Information
Full details
The DEKS Fast Flash is a flexible, self-adhesive flashing solution for modern roofing projects, ideal for contractors and DIYers seeking a quick and durable alternative to traditional lead. Its primary benefit is providing a weather-tight seal on various roof joints and penetrations with easy installation. A key consideration is the paint compatibility requirement for certain applications. This product offers a lightweight, theft-resistant, and environmentally friendly approach to roof flashing.
All features
| Model Part Number | FFR5-280B |
|---|---|
| Brand | DEKS |
Extended Product Information
FAQs
What is DEKS Fast Flash made of?
DEKS Fast Flash is a flexible, self-adhesive flashing material designed as an environmentally friendly alternative to lead. Its exact composition is proprietary but it is designed for weatherproofing.
Can DEKS Fast Flash be used on any roof material?
It is compatible with almost all roof materials, including metal, tiles, slate, asphalt, and timber, provided the surface is suitable for adhesion and the minimum slope requirement is met.
What is the minimum roof slope required for installation?
DEKS Fast Flash requires a minimum roof slope of 5 degrees for effective water drainage.
Do I need to paint DEKS Fast Flash?
Painting is not always required but is recommended if aesthetics are important, or if water is likely to travel from copper or bitumen onto the flashing. Use only 100% acrylic low sheen exterior paint.
How is DEKS Fast Flash installed?
Installation is straightforward: clean the surface, cut the flashing to size, peel off the self-adhesive backing, and press firmly onto the roof area, molding it to the contours.
Is DEKS Fast Flash suitable for extreme weather conditions?
It provides a weather-tight seal and is designed for durable performance. However, for extreme conditions, proper installation and consideration of paint compatibility are crucial.
What are the dimensions of this product?
This specific product is 5000mm long and 280mm wide.
Troubleshooting
Poor adhesion
Ensure the substrate is clean, dry, and free of dust, oil, or loose particles. Surface temperature should be within the recommended application range. Press firmly from the center outwards during application.
Material not conforming to curves
Gently warm the material with a heat gun on a low setting (use caution to avoid overheating) to increase pliability, then mold it into shape. Ensure firm pressure is applied during installation.
Paint not adhering or blistering
Verify that only 100% acrylic low sheen exterior paint is used. Ensure the surface is clean and dry before painting. If the flashing is in contact with copper or bitumen, proper priming or painting is essential.
Water pooling on flashing
Check roof slope; ensure it meets the minimum 5-degree requirement. Address any drainage issues on the roof surface around the flashing.
Pros and Cons
Pros
- Easy and fast installation due to self-adhesive backing.
- Lightweight, reducing structural load and installation effort.
- Environmentally conscious choice compared to lead.
- Durable and weather-resistant for long-term performance.
- Adaptable to various roof shapes and materials.
Cons
- Requires specific paint (100% acrylic low sheen exterior) if painting is needed, especially over copper or bitumen.
- Minimum slope requirement of 5 degrees may limit certain installations.
- Not suitable for extreme heat applications without proper consideration for paint adhesion and stability.
- Initial cost might be higher than some traditional alternatives.
- Long-term performance under harsh UV exposure without paint may need further research.
Setup, Compatibility & Care
Setup:
- Ensure the roof surface is clean, dry, and free from dust, grease, or loose debris.
- Cut the DEKS Fast Flash to the required size using a sharp utility knife.
- Peel back the protective film from the self-adhesive side.
- Carefully apply the flashing to the prepared surface, pressing firmly from the center outwards to ensure good adhesion and eliminate air bubbles.
- For angled surfaces or edges, mold the flashing to fit snugly.
Compatibility:
DEKS Fast Flash is compatible with most common roofing materials, including metal, concrete tiles, slate, asphalt membranes, and timber. It is suitable for roofs with a minimum slope of 5 degrees. If painting is required, use only 100% acrylic low sheen exterior paint. Special care is needed if water is likely to run from copper or bitumen surfaces onto the flashing; in such cases, priming or painting with the specified paint is essential for longevity.
Care:
Clean the surface of the flashing with a damp cloth. Avoid abrasive cleaners or solvents. If painting, ensure the surface is clean and dry before application according to the paint manufacturer's instructions. Regular inspection of seals, especially after severe weather events, is recommended.