Top Hats
Key Features
BBA Certified
All Cordek products are BBA certified for quality assurance
Next Day Delivery
Fast delivery across the UK for your project timelines
Sustainable
BREEAM A+ rated products for environmentally conscious projects
Perfect For:
- Residential foundations and ground beams
- Commercial building projects
- Ground heave protection systems
- Gas venting and radon protection
- Pile caps and foundation formwork
- Contaminated land remediation
Why Choose NextDaySteel for Groundworks?
Description
Ensure continuous protection with Top Hats, supplied by Next Day Steel to seal pipe, duct, or service penetrations in construction membranes. Crafted from materials matching the membrane type, these units provide robust VOC, ground gas, and damp-proof protection. Available in single, double, or multiple penetration options, each Top Hat comes with a jubilee clip and supports welded or taped installations. Ideal for maintaining gas and damp integrity in residential and commercial projects, they are BBA certified and compliant with BS 8485:2015 + A1:2019. Call Next Day Steel at 020 8079 7719 for expert specification advice and order now for next-day delivery across the UK.
Product Specifications
|
Type |
Membrane Penetration Seal |
|---|---|
|
Components |
Top Hat units with jubilee clip |
|
Material |
Matches membrane type (e.g., HDPE, PVC, rubber-based, or specialized polymers) |
|
Penetration Options |
Single, double, or multiple (custom diameters) |
|
Installation |
Welded or taped |
|
Applications |
Sealing penetrations in construction membranes for gas and damp protection |
|
Standards Compliance |
BBA certified, BS 8485:2015 + A1:2019 |
Key Features
-
Matches membrane material for seamless VOC and ground gas protection.
-
Options for single, double, or multiple penetrations with custom diameters.
-
Supplied with a jubilee clip for secure installation.
-
Suitable for welded or taped applications.
-
BBA certified and compliant with BS 8485:2015 + A1:2019.
-
Next-day delivery available across the UK.
Suitability Table
|
Product |
Puraflex Membrane |
Puraflex Tank |
Tri-Gas Membrane |
Gas Resistant Self Adhesive Membrane |
Radon Membrane |
|---|---|---|---|---|---|
|
Puraflex Top Hat |
Yes |
No |
No |
No |
No |
|
Tri-Gas Top Hat |
No |
No |
Yes |
No |
No |
|
HDPE Top Hat |
No |
No |
No |
Yes |
Yes |
What are Top Hats used for?
Top Hats seal pipe, duct, or service penetrations in construction membranes, ensuring effective VOC, ground gas, and damp-proof protection in residential and commercial projects.
How do I select the right Top Hats specifications?
Choose the Top Hat type (Puraflex, Tri-Gas, or HDPE) and penetration option based on your membrane type, using the suitability table. Call Next Day Steel at 020 8079 7719 for expert guidance.
Do Top Hats meet industry standards?
Yes, they are BBA certified and comply with BS 8485:2015 + A1:2019, ensuring reliable sealing performance.
Can I get Top Hats delivered next day?
Yes, next-day delivery is available, subject to stock and location. Call Next Day Steel at 020 8079 7719 to order now.
Need Technical Support?
Our team of experts are here to help you select the right groundwork solution for your project.