Fabricare KatNet System

1) Nets laid on roof (Flat Angle) 2) Combination of ladders with net 3) Required nets unclamped and folded 4) Combination of ladder & net

 Rooftop Safety Nets

In Indian Industry, on top of their Asbestos Cement (A.C.) sheet roofs, the roof workers are left to the mercy of God if they work without any system or else they use rooftop safety systems. These sheets are fragile and visually the weak sheets cannot be differentiated from the good ones. Stepping directly on these sheets might always be a call of a fatal accident. The height from which the worker falls, the object on which he falls prior to hitting the ground are some of the various factors which make these accidents more dangerous and highly fatal. This accounts for thousands of rooftop accidents every year; most of these are fatal ones.

Use of rooftop safety system limits the speed of work and this was one of the main causes of neglecting the system while actually working on rooftop. The system would be observed, laid in a corner, unused, provided by the employer - the industry awarding the contract of rooftop jobs.

With a definite increased element of safety awareness in Indian Industry on introduction of ratings like ISO etc., the industry would insist on tying of a net at the truss level under the roof when the working on floor below is in progress. These nets are BULKY and quite CUMBERSOME. Tying them at the truss level is a time consuming, laborious & nightmarish job. The net has to be strong enough because of the momentum, to hold the falling workers from a height. THE FACTOR OF GRAVITY COMES INTO PLAY. Thus, this safer working procedure further limits the speed of the work on rooftop and thus the productivity or the output of work reduces to 30 - 35%. This creates reluctance and then deliberate negligence sets in both, on the part of the contractor and on the part of the employer who employs him as well.

This gave rise to invent some system, which will SPEED UP THE WORK WITHOUT COMPROMISING ON SAFETY while working on rooftops.

The system "Fabricare KatNet System" consists of two essential parts :

i)"Fabricare KatNet" - A light weight net with its fixing attachments and accessories &;
ii)Rooftop Safety System.

"Fabricare KatNet" nets are made from polymer rope of 2 mm. dia. having 70 mm X 70 mm. opening mesh. It is overlocked to border rope in a knotted construction. The nets are made in suitable STANDARD PANEL SIZES. They are extremely light in weight. With this reduced weight carrying the nets to rooftop & spreading and fixing them is much EASIER TASK, than tying the net at truss level even when the working on floor below is in progress. THIS IS ENTIRELY A NEW CONCEPT. This is Pending Patent No. 1388 / MUM / 04 Dtd. 22/12/2004. These nets are available in standard panel sizes.

The accessories, "NYLOFIXERS" are specially developed & made from flat nylon straps, eyelets, fixing bolt and fixing sleeve. One is "ENDFIXERS" which is a strap to fix the net to roof bolts. The other is "MIDFIXERS" which is also a strap for fixing one net with adjoining net. Rooftop safety system, in combination, is EASILY used over these nets without any obstruction, comfortably. Nets are fixed to roof with suitable "ENDFIXERS".

Advantages of combination

1.  Total SAFE AND SPEEDY work on fragile A.C. Roofs.
2.  Thousands of rooftop accidents every year, most of these fatal ones, can be eliminated.
3.  A lightweight net facilitates quick, trouble free and its easy installation.
4.  Nightmarish Installation of BULKY and CUMBERSOME nets below roof is avoided.
5.  Shop floor activity is not required to be stopped.
6.  Laying, spreading, fixing, uninstalling is EASY and not time consuming.
7.  Easy for storage.
8.  Each panel can be packed and stored separately.
9.  Available in standard panel lengths and widths. YOU plan your work in your chamber.
10. Availability of this SAFE COMBINATION would avoid friction between management & contractor in deciding the rates of the work.
11. Availability of this SAFE COMBINATION would encourage the worker to work at hazardous heights.

This system is to be laid ON TOP of the roof and not below the roof. It should facilitate fixing the same to the protruding roof hooks, enabling every activity of roof maintenance including changing of Roof Sheets

This system consists of the following :

A light weight roof net with its fixing attachments and accessories conforming to pending Patent application No. 1388 / MUM / 04 Dtd. 22/12/2004.

Material Body rope  H.D.P.E. rope 2 mm. dia. approx Rope : IS marked by Border rope H.D.P.E. rope 6 mm. dia. approx (Garware-Wall Ropes or equivalent) Construction Knotted construction with interlocked border Opening 70 mm X 70 mm. mesh Configuration One set of TEN systems. Each system consisting of following : Net of Standard Panel Size 15 Ft. X 5 Ft. – 1 No Endfixers – 23” long – 10 Nos. / set Midfixers -   6” long – 6 Nos. / set Eccentric Clamps – 10 Nos. Ball Nuts – 16 Nos Bolt Extension accessories – 6 Nos.

“Fabricare KatNet”

Rooftop Safety System :

The Fabricare Rooftop Safety System is bearing Patent No. 185664 Dtd. 03/10/96. One set for Corrugated CRST or Trafford TDST type of sheets, which has been recognised by the Factory Inspectorates in various States under Respective Factories Rules, consists of the following.

Part Name CRFL / TDFL Ladder 3 Mtr. long 3 Nos. Folding or Non-folding type Part Name CRHL / TDHL Half Ladder 1.8 Mtr. long 2 Nos Part Name CRWP / TDWP Working Platform 0.6 Mtrs. long 3 Nos Part Name CL Quick Action Eccentric Clamps 30 Nos. Part Name EP Elevating Pads 18 Nos Part Name HS Harness 3 Mtrs. long 3 Nos Part Name SL Bolt Changing Sleeves 5 Nos. Part Name BEXA Bolt Extension accessories 10 Nos

Bureau Of Indian Standards is in the process of finalising a Standard titled “Code of practice for laying, inspection and maintenance of Fragile Roofs” through Docket No. DOC CED45 (3762). This Standard endorses above Configuration of components in a full Set of roof Ladder, which is termed as “Minimum Adequate Quantity” to carry out various jobs on the fragile Roofs with minimum shifting.

Specifications : :

The Side members should be made from HE-9 grade tempered Aluminium Alloy No.    6063

Steps are made from High Impact grade Virgin “Acrylo Butadine Styrenes” (A.B.S.)

Steps are to be reinforced by Aluminium strips made from HE-20 grade alloy No.     6351.

Steps should have inserts of Aluminium, giving clearance of 0.1 mm over the Dia of    Rivets.

Brackets are made from Glass filled Nylon - Grade Virgin Nylon-66.

Rivets are hallow rivets, having good shear strength.

Saddles are made from Virgin `Low Density Polypropylene’.

Anti-skid padding should be made from Natural Rubber.

Elevating Pads are made from Virgin Polypropylene.

Eccentric Clamps should be made from good quality LM6 grade Aluminium / Virgin    Nylon-66.

A segment of 3 Mtrs. should take Load of 500 Kgs. in operating conditions.

Full Ladder should not have steps less than 13 numbers, while Half Ladder 1.8 long    should not have steps less than 8 numbers.