Cromar Flat Sheet Roll - F300
Best current price£136.02from PVC Cladding UK
Best offers
Shopping.co.uk recommended and popular offers
PVC Cladding UK£136.02Visit shop Cromar F300 Flat Sheet Roll - 20Mtr Roll
Visit shopPVC Cladding UK£136.02Visit shop All Offers
2 offers from £136.02 - £160.02
View price history by clicking the chart icon.
PVC Cladding UKCromar F300 Flat Sheet Roll - 20Mtr Roll
Free delivery in 1–3 days
£136.02
Visit shop
Professional Building SuppliesCromar F300 Flat Sheet Roll - 20Mtr Roll
Free delivery in 1–3 days
£160.02
Visit shop
Product Information
Full details
The Cromar Flat Sheet Roll (F300) is an ideal solution for professional roofers and DIY enthusiasts looking to ensure watertight integrity at critical roof junctions. Its primary benefit is providing a robust, flexible moisture barrier that integrates seamlessly under slates and tiles, though users should note that careful handling is required to avoid kinking the material during installation.
All features
| Model Part Number | F300 |
|---|---|
| Brand | Cromar |
Extended Product Information
FAQs
Can I use the Cromar F300 on flat roofs?
While primarily designed for roof junctions, tiles, and slates, it is best suited for steep-pitch junctions rather than as a primary waterproofing membrane for flat roofs.
Does this product require special tools for cutting?
No, it can typically be cut to size using heavy-duty shears or a utility knife.
How do I ensure a watertight seal at overlaps?
Ensure a generous overlap of at least 150mm and consider using a compatible roofing lap sealant if the pitch is particularly low.
Is this material paintable?
The Cromar F300 is designed for performance as a barrier; painting it is generally not required and may affect its material properties.
What is the primary material of the roll?
The F300 is a specialized flexible sheet engineered for durability and moisture resistance in external roofing applications.
Troubleshooting
Material not lying flat
Gently warm the material in mild weather or use a smoothing tool to remove creases; ensure it is properly anchored.
Water pooling behind the flashing
Check the angle of installation to ensure it creates a positive slope towards the intended drainage path.
Material edge lifting
Apply a high-quality, exterior-grade roofing adhesive or mechanical fixing to secure the edges firmly to the substrate.
Pros and Cons
Pros
- Excellent weatherproofing capabilities for roof junctions
- Highly versatile for both roofing and guttering applications
- Durable material composition ensures long service life
- Easy to cut and shape to accommodate complex roof layouts
Cons
- Material may be prone to kinking if not handled carefully during application
- Requires proper surface preparation for optimal adhesion
- Professional installation techniques recommended for best results
Setup, Compatibility & Care
Before installation, ensure the roof or guttering surface is clean, dry, and free of sharp debris that might puncture the sheet. Measure the required dimensions, allowing for necessary overlaps to maintain a continuous seal. Secure the material firmly under existing slates or tiles, ensuring it is positioned to guide water flow downward. For maintenance, periodically inspect the visible sections of the flashing during routine gutter cleaning to check for signs of displacement or weathering. If gaps appear, use appropriate roofing sealant to reinforce the bond.