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Technical Help

Floodshield on Wooden framed doors

The barrier seals against the flat outside surface of the doorframe and down onto the step (stone, concrete or wood) as shown in figure W1.

Figure W1

Floodshield Diagram W1

The barrier needs to overlap onto the doorframe approx 1 ½ inches (38mm) each side of doorframe to allow the barrier to clip to doorframe as shown

Figure W2: Wooden frame clip arrangement

Floodshield Diagram W2

Fig W3 and W4 shows an example of part of the doorframe outside being hidden (narrow). This is a result of the outside wall being rendered in sand and cement coating/pebble dashed. By adding a wood batten to the doorframe (as shown fig. W3 and W4) it will allow the barrier to clip to the doorframe. (wood batten can be painted to match the doorframe).

Wooden Door Frame (Narrow frame) less than 1 ½” (38mm) Figure W3

Floodshield Diagram W3

The barrier seals against the flat outside surface of the doorframe and down onto the step (stone , concrete or wood) as shown.

Narrow frame clip arrangement - Figure W4

Floodshield Diagram W4

Floodshield on UPVC doorframes

 

UPVC Doorframe Figure U1

Floodshield Diagram U1

The barrier seals against the flat outside surface of the doorframe as shown.

The barrier needs to overlap onto the doorframe (approx) 1 ½ inches (38mm) each side of doorframe to allow the barrier to clip onto the doorframe.

UPVC doorframes are approx  3 inches (75mm) wide, which allows the barrier to overlap more than 1 ½ inches (38mm) if you wish as shown in fig U1 and fig U2.

UPVC Doorframe Figure U2

Floodshield Diagram U2

There are 2 types of rainwater drainage points on upvc doorframes,

  1. CONCEALED DRAINAGE POINT- Where the bottom frame member meets the step/sill. If this is the case then it needs to be sealed with a sealant (as per instructions supplied). Modern upvc frames are such a good fit that the rainwater entering the property i.e. collecting on the thresholds is virtually non existent.
  2. DRAINAGE HOLES (with hoods that unclip in the bottom frame member) – If this is the case, then providing the holes are more than 1cm (10mm) above the step then the barrier will be ok. If however the drainage holes are less than 1 cm above the step you can temporarily seal these with duct tape when flooding is imminent.

UPVC Door Frames with plastic trim. Figure U3

Floodshield Diagram U3

The barrier seals against the flat outside surface of the doorframe as shown ——–
The barrier needs to overlap (approx) 1 ½ inches (38mm) each side of the doorframe to allow the barrier to clip onto the doorframe (FIG U3 and U4).

Choose the barrier size that avoids the plastic trim at the edge of the doorframe.

Figure U4

Floodshield Diagram U4

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