Monday, February 3, 2020

Install invisible safety grille at windows, balconies, yards, etc. for high rise buildings

I have just engaged with KL Invisible Grille (KLIG) to install invisible safety grille at the windows of a service apartment unit.

Invisible safety grille is just like a wire mesh or netting fence, except that it is customized to the installation area and constructed on site, precisely and firmly attached to its base. The construction of this invisible safety grille is similar to the way of doing racquet stringing.

To make it looks nicer, you can choose to only construct with vertical cables but without horizontal cables, or to construct with horizontal cables without vertical. In this way, it will look something like a harp. You can also increase its safety level by constructing both ways to make it like a racquet stringing.

(Photo from KLIG's Facebook page)

The invisible safety grille really looks invisible when viewed from some distance (a few meters) away and will not cause distraction to the beautiful scenery outside the building.

The main purpose of installing invisible safety grille is as a measure of safety to prevent people (especially toddlers and children), domestic pets, objects, etc. from falling out of the building.

Although the cable used is pretty strong and durable, with a breaking force of up to 900kg, it can be cut by metal cable cutter by exerting strong force. The good point of this is that the grille will not block fireman equipped with special cutting from rescue mission in case of emergency. The bad point is that it is more vulnerable to burglar and thieve who have the metal cutter and trying to enter the premise from the window.

The process began with a free onsite measurement to the areas of installation. The quotation is based on actual installation coverage area in square feet units.

Then, a deposit is paid and their workers will come for installation. It takes about 10 hours to complete the invisible safety grille installation for all the windows in my service apartment unit.

Since the installation involved drilling, there will be some minor touch up to the wall needed after the installation. The workers performed the touch up filling and repainting with white base paint to the affected places. They also cleaned up the floor, before leaving.

The warranty period will depend on the selection of cable material to be used. There are 3 types of cable for selection:
  • 316 stainless steel cable - 15 years material warranty. Thicker.
  • Nanotechnology Teflon coated cable - 15 years material warranty. Thinner.
  • Nylon coated cable - 3 years material warranty. Thinner but not as durable as the other 2 types above.
You might be surprised that the installation price of invisible safety grille is actually much more cheaper than traditional metal bars grille. For example, the installation cost of the single panel window below is less than RM200.

As such, invisible safety grille is highly recommended to be installed for windows, balconies, yards, etc. of high rise buildings that is very difficult to climb in from outside, to prevent people, pet, object, etc. from dropping out of the building. The cables are as fine as 2.0 millimeter only, which will be seen as invisible and will not block the scene when viewed from some distance away.

If you play it like a harp, the cables can actually produce some nice sound. But unless the cables have different length, the sound produced by each of the cables is pretty monotonous.


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