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If the floods of autumn 2003 caused much damage, they also gave ideas to some of our readers, who did not stay both feet in the same boot! Like Jean-Marie Rapp, whose clever device protects in case of flood its veranda. For little of course that the height of water is reasonable.

Install anti-flood panels

Beginner level
Realization: a weekend
Cost: 60 euros approximately
Mini equipment: drill

See the plan of this realization (in pdf): anti-flood panel: the plan

A removable device for small floods

A rising water of a few tens of centimeters can be contained with relatively light means. The panel imagined here consists of two leaves that overlap on forty centimeters. With a margin of a few millimeters, you can adjust its length as closely as possible and compress the peripheral foam seals. This leaves no gaps vulnerable to water. The principle is transferable to narrower openings. Wood and hardware are bought in DIY stores, and seals in specialized stores.

Install anti-flood panels: panels

Two horizontal leaves

The two horizontal leaves consist of 18 mm blockboard, and stiffened with glued and screwed cleats by the back of which the heads of the screws are masticated. Before assembly, apply on each leaf two layers of glycerophthalic lacquer to protect them from water. Finalize this protection with two additional layers after bonding the peripheral seals. Metal handles facilitate their handling. For safety a stop between the rear leaf and the central window pillar relieves the connection if the water pressure is too strong.

Seal

Seal

Assembled by six TRCC bolts, the panels are superimposed on 40 cm. Across the width, a 5 mm thick rubber plate seals. To prevent seepage through the slots in the front leaf, large rubber gaskets are compressed when mounting with 50 x 50 mm steel plates tightened with TRCC bolts. The 20 x 20 mm peripheral seals are attached to neoprene glue on the side and bottom edges. Side seals are compressed by pushers. To ensure optimum sealing a vertical cylinder crushes the bottom seal on the ground. The pushers are two small screw jacks. Each of them slides in a guide formed of a metal pin rebored and soldered behind a square screwed to the back leaf. Pressed on the square, a nut threaded on the axis of the cylinder puts the pusher under pressure.

Cover, assemble, seal

Cover, assemble, seal

The covering of the lacquered panels is sealed by a rubber plate. The assembly is tightened by six TRCC bolts, the nuts of which compress 50 x 50 mm joints under steel plates.

Fix the front leaf

Fix the front leaf

At one end, the front leaf is clad by two shutter stops against a screwed-in stud in the wall. At the other, a second amount takes the back leaf sandwiched against the frame of the window.

Fix the rear leaf

Fix the rear leaf

Plate and compress the peripheral seal

Plate and compress the peripheral seal

The peripheral seal is pressed on the sides by the pressurization of the two screw pushers. On the ground, it is compressed by a vertical jack connecting the lintel to the upper edges of the panel.


Video Instruction: Floodgate, flood barrier system