Introduction

VR Board Demonstration

Millions of dollars are lost every year through the destruction of private and public property, and the theft of valuable machinery and equipment.

Consider not only the cost of replacing stolen or damaged goods, but the added expense of repairs to premises where forced entry has occured.

A composite panel of selected materials combined with special technology and adhesive Guardian V.R Board all but eliminates the risk of breaking any entry.

The possibilities and application are endless:-

• Schools
• Shops
• Service Stations
• Pharmacies
• Surgeries
• Homes
• Prisons
• In fact anywhere that might be considered a target for vandals and thieves.
  

NEW BALLISTIC RATING

VR Board

Guardian V.R Boards makes it a great deterrent to breaking in (or out).
Extensive testing has shown that Guardian V.R Board is virtually indestructible. Testing using typical burglary tools of trade, Guardian V.R Board proved extremely difficult to penetrate.

After numerous blows from both a sledgehammer and a mattock comparatively little damage was sustained- even total destruction of the panel allowed no penetration.

Entry into any premises constructed using Guardian V.R Board would be next to impossible.

Guardian V.R Board wont burn, is impervious to moisture, and is extremely durable. When you add up the benefits, Guardian V.R Board is far superior to any alternative on the market today.

Test Results

New and improved technology is constantly being introduced to this product and often it is years before definitive information can be given however we can report Guardian V.R Board composites are the most tested security panels of a like nature both in-house, in approved environment and approved testing laboratories on the market in Australia today. No product making similar claims can produce the test results that Guardian V.R.Board has researched and accessed.

Here is some of the results-

• AS1530-3-1989
  Ignitability index 0 Range 0-20
  Spread of flame index 0 Range 0-10
  Heat evolved index 0 Range 0-10
  Smoke developed index 1 Range 0-10
  
  
• Sound transmission is low- reflection 98%
  
  
• Sound attenuation 30db based on a relatively thin composite
  
  
• "Approved for Embassies" by Government Department
  
  
• Cyclone tested using a light steel composite resisted a 4kg missile at 15m/s
  
  
• Tested by government department in accordance with AS3555 1988 levels 1-6 intruder Resistant modular vault walls panels.
  
  
• No penetration when tested in the SO class 3 m range 400m/s velocity. AS2343-Part 2-1984
  
  
• Adhesive functional to 120 degrees C.
  
  
• Testing procedures involved-
  
  (a) Optimum Steel Thickness Determination -soft body impact Test
  
  (b) Fixing method determination
  
  (c) Site cutting determination using Electric saw, Electric Jigsaw
  
  (d) Security
                  - Hard body (Axehead) Impact Test
                  - Oxy Acetylene Cutting Test
  
  
• During a series of flexural strength tests the fibre cement did not separate at the interface
  
  
• During a series of test the bond was always stronger than the fibre cement itself.
  
  
• Guardian V.R Board will work well motion sensors using microwave and passive infrared patterns with warning systems. The warning systems can be wired to a phone, computer monitor, Police station and a siren sitted.
  
  
• Three point flexural strength apparatus was used to test produced this report-
  
  The adhesive strengths between steel and fibre cement was much greater than interply strength of the fibre cement. Over all density of the material is greater than compressed fibre cement.
  Strength is comparable to compressed fibre cement
  The bond at that point was always stronger than the fibre cement itself showing that the adhesive is doing its job well.
  
  
• Recent test in May 1987 directed towards NATA endorsement under AS2343 parts 1 & 2 indicate compliance and certification will be soon.

History

VR Board

• Telstra Telephone Exchanges
  
  
• Police Courts
  
  
• Corrective Services
  
  
• Primary Schools
  
  
• High Schools and Colleges
  
  
• Hospitals
  
  
• Clubs
  
  
• Embassies
  
  
• Commercial Offices
  
  
• State Rail Authorities
  
  
• New applications and jobs are being added all of the time.

What the Manufacturer Says

"The special feature of the Guardian V.R. Board is that it deprives impending perpetrators of a quiet and quick penetration into a building."

"Where fibre cement is used Guardian V.R. Board accepts any decorative finish. It is available in a variety of thickness to suit applications, from vandal resistant panels for schools and public buildings, to security shielding for prisons."

"It is not possible to break through this panel without creating excessive noise for long periods of time."

"Guardian V.R. Board will meet a security need which compressed fibre cement is unable to do."

Fixing Suggestions/Methods

Rondo Studs:
In one typical test the following system was employed when used in conjunction with Rondo Studs ranging from 0.6mm to 1.2mm thick -
Deutsher

• 8/18 x 35mm self-embedding head "Wing Tek" screws.
• 8/18 x 25mm extended point screws.
  

Timber Frame:
In another when fixing to a timber frame -

• Buildex Type 17 No. 10-12 x 30mm were used.

NOTE - Panels should be pre-drilled.

Stud Spacing:
600mm centres maximum

Fixing Spacings:
200mm around perimeter with minimum edge clearance 15mm. 400mm through centre of sheet.

Single Sided:
Guardian V.R. Board for internal wall sheetings, V.R. Board manufactured from a single sheet of F.C. sheet bonded to a sheet of steel may be fixed direct to timber or metal framing at 600mm stud centres maximum. In the case of an existing wall sheeted with either F.C. Sheeting or plasterboard, single sided V.R. Board may be fixed directly over the existing sheeting.

Joins may be butt jointed or joined with a PVC joint mould or desired strip. Single sided strip is not recommended in a salt air environment.

Double Sided:
Guardian V.R.Board: Where the wall is to be sheeted is the external wall of the building, the sheets must be manufactured from a fibre cement sheet bonded to each side of a sheet of steel of the specified thickness. The purpose of double-sided sheets is to create a stable panel, which will not distort under varying surface temperatures on either side of the panel. This requirement is also necessary when V.R. Board is used as a ceiling sheet.

Cutting:
I t is recommended that as much cutting as possible be carried out with a diamond blade wet cut saw bench in a factory environment.

When sheets are site cut, the edge of the cut zincanneal must be painted with metal primer.

Pre-drilled and cut to size sheets can be supplied.

Site Cutting Comment:

• Electric saw equipment with metal cutting blade - The panel is able to be cut using this method, but cutting is slow and dust may cause concern. Also disc life is reduced.
  
• Electric saw equipped with a diamond cutting disc (wet cut) - the panel causes damage to the diamond blade and cutting is very difficult. Therefore this method is not acceptable for site cutting.
  
• Electric jig saw equipped with a metal cutting blade (AEG - 254063 or BOSCH T119A) - cutting is very easy, but blade life is reduced.
  
• Electric jig saw equipped with a ceramic cutting blade (Remington SB 130) - the blade was unable to cut the panel.

Treatment of Screw Heads:
All screw heads are to be countersunk and filled with Ciba Geigy L.C. 125 Araldite or similar and sanded flush.

Suggested Applications:
Vandal resistant panels for schools and public buildings. .9mm could be considered, .9 and 1.1mm could be considered for Security sheeting for Government buildings, Police Stations. Watch Houses, Court buildings. 1.5 or 1.9mm is generally used for Prisons.