Formflow
Styrobecks Form-Flow board is made from 100% recycled (EPS) Polystyrene. Form-Flow is designed to protect below ground waterproofing membranes which are applied to exterior block work, tilt slabs or concrete panel retaining walls.
Form-Flow is installed against the membrane so as to protect the waterproofing seal from the back filling process of scoria,soil ,stone and rock, which could penetrate and break the membrane seal. It is a light weight easy to handle board in a standard size of 2400x1150x90mm with 5 Sheets/pack.
Because Form-Flow is porous it allows water to pass through the board thus assisting drainage around the waterproofing membrane via the installed drain coil at the base of the application.
Back filling behind the Form-Flow should start with a granular drainage metal such as scoria or sand for a portion of correct thickness prior to the general backfill being put in place. Seek technical advise if in doubt as to the correct backfill material.
Form-Flow has been fully tested and an appraisal was completed by Opus Consultants Ltd.
Technical Resources
1. What is Form-Flow?
Form-Flow is a protective board made from expanded polystyrene (EPS), designed to protect below-ground waterproofing membranes. It is typically used on exterior blockwork, tilt slabs, or concrete panel retaining walls to prevent damage during the backfilling process.
2. What are the benefits of using Form-Flow?
• Protection: Form-Flow provides a physical barrier to protect waterproofing membranes from sharp materials like scoria, soil, stone, and rock that could damage the membrane.
• Moisture Resistance: Polystyrene is water-resistant, which helps prevent moisture from affecting the waterproofing system.
• Thermal Insulation: Form-Flow offers thermal insulation, which can enhance the energy efficiency of the building.
• Lightweight: Easy to handle and install, reducing labor time and effort during the installation process.
• Durability: Long-lasting and resistant to degradation when installed correctly.
3. How does Form-Flow help with drainage?
Form-Flow is porous, allowing water to pass through the board. This facilitates drainage around the waterproofing membrane via the installed drain coil at the base of the application, helping to avoid water pooling and potential damage to the membrane.
4. What size is Form-Flow available in?
Form-Flow is typically available in sheets sized 2500 x 1200 x 95 mm, with 6 sheets per pack. Custom sizes may also be available depending on specific project needs.
5. How is Form-Flow installed?
Form-Flow is installed directly against the waterproofing membrane to protect it during the backfilling process. It should be placed before backfilling with granular drainage materials like scoria or sand, followed by the general backfill material. Ensure proper alignment for optimal protection.
6. Can Form-Flow be used in all soil types?
Form-Flow is designed to provide effective protection in a variety of soil conditions, including those with high moisture content or unstable conditions. However, the type of backfill material should be considered to ensure it provides the necessary drainage and support.
7. Is Form-Flow environmentally friendly?
Form-Flow is made from expanded polystyrene (EPS), which is recyclable. While EPS is not biodegradable, it can be reused or recycled in appropriate facilities, making Form-Flow a more sustainable option compared to other materials.
8. How long will Form-Flow last?
When properly installed, Form-Flow can last the lifetime of the building. EPS is resistant to decay and will not rot, ensuring long-term protection for the waterproofing system.
9. What types of projects is Form-Flow suitable for?
Form-Flow is ideal for a wide range of projects, including residential, commercial, and industrial buildings, especially those with below-ground foundations requiring waterproofing protection. It is often used in construction where blockwork, tilt slabs, or concrete retaining walls are present.
10. Is Form-Flow tested and approved?
Yes, Form-Flow has been fully tested, and an appraisal was completed by Opus Consultants Ltd, ensuring its performance and compliance with industry standards.
11. Can Form-Flow be customized for specific projects?
While Form-Flow is generally available in standard sizes, it may be possible to obtain custom sizes or modifications based on project requirements. It is recommended to consult with the supplier for specific customization options.
12. What kind of maintenance is required for Form-Flow?
Form-Flow generally requires little to no maintenance once installed, as it is designed to be a durable and low-maintenance solution. However, periodic inspections are recommended to ensure there are no issues with the waterproofing membrane or drainage system.