Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
PAS 01188 — Flood Protection Products Specification
Flood Protection Products — Specification (PAS 1188, 2014 edition)
🌊 PAS 1188 is a Publicly Available Specification (PAS) series developed by the British Standards Institution (BSI), sponsored by the UK Environment Agency, titled “Flood Protection Products — Specification”. The series specifies technical requirements, leakage test methods, deployment guides, and factory production control for products that protect buildings from floodwater ingress — such as flood boards/barriers, temporary flood walls, door/window seals, building skirt and wall sealant systems, and demountable flood protection products. The 2014 third edition comprises four parts and provides an important basis for certification, selection, and acceptance of flood protection products in the UK and beyond.
💡 “Looks like it holds water” is not “tested to reliably hold water”. The value of PAS 1188 is turning flood performance into verifiable quantitative indicators (leakage tests) and requiring products to provide deployment guides and factory production control, ensuring they are “buyable, installable, and able to hold water”.
1. Series Overview 📌
The PAS 1188 series (third edition effective July 2014) has four parts covering different types of flood protection products:
| Part | Edition | Subject | Main Content |
|---|---|---|---|
| PAS 1188-1 | 2014 | Part 1: Building aperture products | Specification and testing of flood boards/barriers for openings such as doors and windows. |
| PAS 1188-2 | 2014 | Part 2: Temporary products | Specification of temporary (mobile, rapidly deployable) flood products, including wave protection categories and leakage/movement tests. |
| PAS 1188-3 | 2014 | Part 3: Building skirt and wall sealant systems | Specification and leakage testing of skirts and wall sealing systems forming a perimeter barrier around buildings. |
| PAS 1188-4 | 2014 | Part 4: Demountable products | Specification of demountable flood products for repeated installation and removal (scan version; written from public domain knowledge). |
⚠️ Part 4 (1188-4:2014) is a scan-only file in the source material; its content is summarised from public domain knowledge. Always refer to the official BSI published version. PAS is a rapid-response industry specification and, per its own text, will be withdrawn or upgraded when the content is published as a formal standard.
2. Product Classification and Technical Framework 🧱
PAS 1188 provides a general classification of flood protection products and issues parts by product type. The common technical framework includes:
- Requirements: each part specifies structure, material, sealing, and performance requirements for the relevant products.
- Method of test for leakage: measures leakage under simulated static water and wave conditions, specifying test depths and leakage limits (Annex B).
- Deployment guide and user manual: requires clear use, installation, and maintenance instructions.
- Factory production control: requires manufacturers to establish production quality control ensuring batch products match the type-tested samples.
| Product Category | Protection Principle | Main Test |
|---|---|---|
| Building aperture products (-1) | Flood boards/barriers sealing door and window openings | Leakage test under static water/waves |
| Temporary products (-2) | Movable flood walls/barriers for rapid deployment | Leakage and movement test, wave category verification |
| Skirt/wall sealant systems (-3) | Perimeter sealing around buildings against water ingress | Leakage test (including interfaces and corners) |
| Demountable products (-4) | Removable, reusable flood protection units | Leakage and repeated assembly/disassembly reliability |
3. Leakage Testing and Performance Requirements 🔬
The leakage test is the core of PAS 1188: at specified wave and current testing depths (above the aperture threshold level), water pressure and wave action are applied to the product and the leakage through it is measured and compared with limits. Test conditions (water depth, wave parameters) are determined by product category and exposure environment, ensuring the test represents real flood situations. Products passing the test have their performance recorded for users to select by declared protection depth and duty.
🚨 Always verify the product’s “tested protection depth and leakage class” rather than marketing claims. Passive flood products usually fail because “water exceeds the declared depth” or “incorrect deployment” — strictly follow the provided deployment guide and practise the deployment procedure regularly.
4. Engineering Practice 🛠️
- 🏠 Home and small-business protection: select door/window flood products per PAS 1188-1 and equip temporary flood plans per PAS 1188-2 to enhance building flood resilience.
- 🏢 Commercial and public buildings: design and select protection for underground car parks, plant rooms, and other openings per the relevant parts, with deployment plans.
- 📋 Procurement and acceptance: require suppliers to provide PAS 1188 test reports, deployment guides, and factory production control documentation as acceptance evidence.
- 🔄 Drills and maintenance: periodically practise product deployment and inspect sealant ageing and fastener condition, ensuring “ready to hand, ready to install” in emergencies.
5. Frequently Asked Questions ❓
❓ Q: How does PAS 1188 differ from a formal British Standard?
A: PAS is a Publicly Available Specification developed quickly by BSI at the request of stakeholders (e.g., the Environment Agency) to meet an immediate industry need; its status is below formal British Standards. Per the PAS text itself, it will be withdrawn if the content is published as a British Standard.
A: PAS is a Publicly Available Specification developed quickly by BSI at the request of stakeholders (e.g., the Environment Agency) to meet an immediate industry need; its status is below formal British Standards. Per the PAS text itself, it will be withdrawn if the content is published as a British Standard.
❓ Q: Why does the leakage test distinguish “static water” from “wave” conditions?
A: Real floods often involve waves and water flow; static water pressure alone does not represent reality. PAS 1188, especially in Part 2, defines wave protection categories and conducts wave/current tests at specified depths, closer to actual conditions.
A: Real floods often involve waves and water flow; static water pressure alone does not represent reality. PAS 1188, especially in Part 2, defines wave protection categories and conducts wave/current tests at specified depths, closer to actual conditions.
❓ Q: How do I know whether a flood product suits my building?
A: First determine the location and size of building openings and the likely maximum flood depth, then compare with the product’s protection depth, leakage class, and test data, and verify the fixing conditions on walls/floors required for deployment.
A: First determine the location and size of building openings and the likely maximum flood depth, then compare with the product’s protection depth, leakage class, and test data, and verify the fixing conditions on walls/floors required for deployment.
❓ Q: What does factory production control mean for users?
A: It ensures every mass-produced item matches the performance of the type-tested sample (material, seals, fasteners, etc.), avoiding “sample passes, batch shrinks” problems — an important guarantee of product reliability.
A: It ensures every mass-produced item matches the performance of the type-tested sample (material, seals, fasteners, etc.), avoiding “sample passes, batch shrinks” problems — an important guarantee of product reliability.