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Mosquito Nets and Persianas

If you’re looking for mosquito nets and persianas to enhance your windows and doors, Crystal Windows can help.

Not all mosquito nets and persianas are the same, so take a look at the information below which will help you understand what you need.

Enrolled mosquito nets

For windows or doors, a pull down or enrolled net is the most popular option. The net is in a small box which fits to the top of the reveal outside the window, and fur lined guides are fitted down both sides of the reveal to seal the closed net against insects, a fur pile against the bottom pull rail completes the job/seal.

This type of mosquito net is not a part of the window and may be fitted after the installation or to existing windows that are not being changed.

Sliding mosquito nets

For use with aluminium sliding frames our sliding nets cover half of the aperture when used with two leaf sliders or one third (three leaf sliders) or one quarter with four leaves on two tracks. The net is always visible over the part of the aperture that it covers. Of light but strong construction, the net is easily removed, if desired, for the winter months. Enrolled nets may also be used on sliding doors and windows and so can Caterpillar nets, see below.

Caterpillar nets and nets for prime doors

For hinged doors a pull down net may be used, but if there will be a lot of traffic through the door it may be impractical as the user has to bend down to release the net to raise it, and again to close the net afterwards.

Better is the Caterpillar net which is a concertina net in one or two parts which will cover a door or double doors up to 1.9 metres in one piece and 3.8 metres in two parts. When open, the net is contained in a frame to the side of the door, which is all but covered by the door frame itself, and on the floor is nothing but a nylon strip, so nothing to trip over.

Arched nets

Always fixed in place, always visible, the arched net is designed only for arched windows and doors and is the only way to protect against insects in these locations.

General Nets

Crystal Windows mosquito nets are available in all colours including woodgrain effect and can be fitted to existing windows and doors as well as replacements.

 

SHUTTERS/PERSIANAS

Ordinary persianas

Ordinary persianas have lightweight aluminium slats that are filled with foam to give some insulation against weather and noise. The purpose of an ordinary persiana is to keep the room dark and cool. If, instead of opening the persiana, it is raised just sufficiently to take the weight off it, a line of pin holes will be opened between each slat allowing a pleasing ingress of light to partially light the room. All our persianas (except autobloquante where they are superfluous) have bolts to lock them shut. Ordinary persianas are usually manually operated by means of a chord or tape running through a pulley that is recessed into the wall. In awkward positions or retro-fit* installations a surface, swivel pulley may be used. All persianas can be motorised if preferred, either controlled by a wall switch or by remote control. Also, groups of motorised persianas can be operated together for convenience when shutting up or opening the property after an absence.

Crystal Windows ordinary persianas will be guaranteed by us for ten years up to a maximum width of 2.5 metres. The maximum widths for persianas may be exceeded slightly if it is in shelter, out of the wind. For widths in excess of this limit it is necessary to use our extruded slat persianas, as below. Ordinary persianas weigh 3.5 kg per square metre.

Extruded slat security persianas
As you would expect, these persianas have slats that are considerably stronger than ordinary persianas. Of extruded aluminium with a much increased wall thickness, these persianas weigh 9.5 kg per square metre and are too heavy for manual operation meaning that they must be motorised. Motorised persianas may be operated by switch or remote control.

Crystal Windows extruded slat persianas are guaranteed by us for ten years up to a maximum width of 3.0 metres. As with ordinary persianas it may be possible to exceed this slightly depending upon the location.

Autobloquante persianas

The most secure of all our persianas, Crystal Windows autobloquante slats are heavier than the extruded slats, at 10.5 kg per square metre. Width limit is the same as extruded persianas at 3.0 metres with the same provision for exceeding this as with the other units. As with our other security persianas, autobloquante slats can only be operated with a motor, but as an additional security feature, if an attempt is made to raise the slats from a closed position, from outside, the slats will jam up to prevent them opening.

General

All persianas may be motorised and operated by remote control or wall switch.

All our persianas have baffles in the boxes to prevent cold air and gusts of wind coming into the room.

All our persianas are available in white, colours, metalic finishes or woodgrain finishes.

An ordinary window persiana box measures 155 x 155mm, a door persiana box typically 188mm. Extruded and autobloquante slat persiana boxes may be much larger, depending on the drop of the aperture, due to the thicker slats making a bigger roll when open.

Persianas may be fitted inside the existing door or window aperture, reducing the hight of the door or window frame by the dimension of the box, or they may be cut into the wall above the door or window allowing a full hight door or window frame to be used. The latter is the traditional Spanish way of fitting a persiana, and will give the best result.

*Persianas are sometimes fitted after the window or door has been installed. This is retro fitting and though it can be made to be serviceable, (the pulley is usually fitted outside the window between the frame and the persiana slats) it is ugly and if the tape has to pass through the wall excessive wear is inevitable leading to breakage. A retro fitted persiana may be motorised which will overcome this but the right way to do it is to fit the persiana with the window.

Mosquito nets and persianas prove to be a valuable asset to any home throughout the year, but particularly in the summer.  For more information, simply contact us by email or phone!

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