Low-Height Demountable Flood Barrier for Small Entrances

Low-Height Demountable Flood Barrier for Homes and Small Entrances

The NF‑35L Series low-height demountable flood barrier is specifically designed to protect residential doors, garages, and basement entrances from flooding. Its modular stop-log and post system allows flexible adjustment of height and width according to site requirements, providing temporary yet reliable flood protection for homes and small commercial spaces.

Key Features:

Modular stop‑log and post system: Stackable panels and vertical posts form the flood barrier structure.
Aluminum construction: Full aluminum frame ensures the system is lightweight yet robust.
Height adjustability: Flood defending height is adjustable by adding or removing barrier panels (each panel ~200 mm).
Wide span capability: Single span can reach up to 6 m, and unlimited overall length is achievable with central support posts.
Sealing components: EPDM rubber seals between panels and posts, plus PU/PE ground seals to compensate for ground unevenness.
Flexible installation methods: Can be installed on front walls, side walls, or combined configurations depending on site conditions.

Designed for Low-Height Demountable Flood Barriers for Homes

NEWFLAG This low-profile demountable flood barrier provides flexible and reliable protection for residential entrances and small doorways. Its modular design allows the barrier height to be easily adjusted by adding or removing stackable stop-log panels to accommodate varying water levels. Optional central support posts enable installation across wider openings, with lightweight aluminum construction for quick deployment and easy handling.

Designed specifically for low-threshold entrances, this system provides a practical solution for temporary flood defense, combining efficiency, durability, and minimal visual impact when not in use.

Sturdy Materials for Small-Entrance Flood Barriers

The low-height demountable flood barrier is built with high-strength aluminum profiles, providing an excellent balance of durability and light weight. This design makes handling and installation straightforward, even for smaller entrances or short spans.

EPDM seals are integrated between the stop logs and along contact surfaces to enhance water resistance, while PU/PE ground seals compensate for minor ground unevenness. All materials are treated for outdoor durability, ensuring long-term performance in residential and light commercial environments.

Why This Flood Barrier Is Ideal for Small Entrances

Ideal for low‑threshold and small entrances: Designed specifically for residential doorways, garages and basement openings with limited clearance.
Fast and convenient deployment: The modular design allows barrier panels to be set up quickly on flood alerts and removed easily afterward.
Lightweight yet strong: Aluminum structure means one person can handle and install components without heavy machinery.
Highly adaptable protection height: Users can tailor flood defense height to anticipated conditions by stacking panels.
Reliable temporary flood defense: Well‑engineered connections and seals help form a strong floodwall that resists water loading and wave impact.
Minimal visual impact: When not in use, the system can be removed, keeping entrances clear and unobstructed.
Scalable solution: With optional central support posts, broader entrances or longer runs can be protected seamlessly.

Low-Height Flood Barrier Specs

EFFECTIVE FLOOD HEIGHT (EFH): 200/400/600/800mm

DESIGN SPAN: 3000mm MAX. SAFE SPAN: 4500mm

MATERIAL:
Side Post (6005-T5):
Height: Max. 1.15 m/ Section: T7.0*65*67mm/ Linear: 3.38Kg/m

Barrier Panel (6063-T6):
Supply Length: Max. 6 m/ Section: T1.6*35*200mm/ Linear: 2.59Kg/m

Central Post (6005-T5): If necessary

Pressing Tool: SS304 stainless steel/ Aluminum

SEALS:
Panels and posts: EPDM (Ethylene Propylene Diene Monomer rubber)
Ground: PE&PU composed

COLOUR: Anoidzed (Silver/Black)/ Powder Coated (White, Black,Grey)/ Heat Transfer (Wood Grain)

WEIGHT: For EFH 1m*L 3m as example, it is 16.6kg/m2

Demountable Flood Barrier for Civil Engineering, Efficient flood resistant demountable flood barrier for temporary flood defending

Demountable barriers for flood protection for civil engineering usually consist of mainly 2 parts: removable parts including stackable barrier panels (also named stop logs) and central posts (if central support is requested), and pre-installed permanent parts including end posts (also named side posts) and anchor plates pre-embedded in concrete foundation( if required under the installing circumstance). Our well engineered frame barrier can be installed on front wall, side wall or combined, as long as the ground surface is solid.

Normally in civil application, the requested flood defending height will be under 1000mm which is adjustable by adding or removing barrier panels, the single span can reach maximum 6000mm while unlimited length could be reached with the support of central posts to be a perimeter flood barrier. It is mainly used to protect the doorway entrance and opening part such as front door, garage, basement of private residential, commercial property, industry buildings from flood invasion. Sometimes it is not only for keeping the flood water outside but also applied to contain the contaminated water or liquid from going out for further contamination to environment if any production accident happened in the workshop.Normally in civil application, the requested flood defending height will be under 1000mm which is adjustable by adding or removing barrier panels, the single span can reach maximum 6000mm while unlimited length could be reached with the support of central posts to be a perimeter flood barrier. It is mainly used to protect the doorway entrance and opening part such as front door, garage, basement of private residential, commercial property, industry buildings from flood invasion. Sometimes it is not only for keeping the flood water outside but also applied to contain the contaminated water or liquid from going out for further contamination to environment if any production accident happened in the workshop.

This anti-flood efficient system can be quickly deployed on the flood alert or warning, by sliding the stackable barrier panels into the recess of the posts to form a robust and strong floodwall, and be dismounted with the same simple everyday tool very easily for storage preparing for next use after the flood water. The full system is quite light in weight because it is fully in aluminum structure, which can be handled by only one single hand. The height for flood defensing is totally adjustable by stacking the module designed barrier panels with each piece 200mm in height, after the required height reached, tight the pressing tool from the top of the panel to squeeze the full wall to prevent the water seepage together with the help of EPDM seals inserted between the panels and posts. The full flood wall doesn’t require ground frames because of the PU/PE ground seals can compensate the unevenness of the ground.

NEWFLAG Demountable Flood Barrier Advantages

Extraordinary rigid and robust while light weighted.
Great resistance to water loading and wave impact.
Very durable lifespan due to full anodized surface.
Well engineered, height can be adjusted by adding or removing the slide-in barrier panels.
Very low seepage and with great water tight.
Various installing method and easy to install and dismantle.
Minimum visual impact after being removed.
MAX.6 meters span and unlimited length achievable.v