JDR#1 Pty Ltd A 1 Gould Lane

Stirling SA 5152 P 0418 899 363

E jdr_1@ozemail.com.au

12th December 2016

ECOBLOCK AUSTRALIA

Dear Tony,

ECOBLOCK BRACE/ SCAFFOLD PLATFORM

I Jonathon Dale Rudd BE(Hons) MBA CPEng (ret) Membership Number 250667 hereby certify that I have completed structural calculations and reviewed the drawings of the frames and find them to be in accordance with requirements of the relevant Australian standards and other standards referred to therein. The installation is based on use as a light duty scaffold as defined in the code (220 kg applied load per bay). Lateral bracing should be provided in the line of the wall, at each end.

AS1170.0 Structural design actions - General principles AS1170.1 Structural design actions – Permanent, Imposed and other actions AS1170.2 Structural design actions – Wind Actions AS1576.1 Scaffolding – General requirements

Referenced documents:

• Attached calculations prepared by JDR#1 Pty Ltd

• Attached brace/platform shop drawings

These frames are suitable for platform heights up to 2.4m located in terrain category 3 wind zones. The following assumptions apply:

1. Topographical factor = 1 (not located near ridges or escarpments) 2. Shielding factor = 1 (no shielding assumed) 3. Building height less than 10m

Regards

Jon Rudd Director

MAIN POST

REAR STAUNCHION

HANDRAIL SUPPORT

SCAFFOLD SUPPORT

BRACE ASSY

BRACE ASSY RETRACTED

BRACE ASSY FULLY EXTENDED

ADJUSTER RODSEND ADJUSTER ROD

ADJUSTER HANDLE

MID TUBE

BOTTOM TUBE

TOP TUBE

BOTTOM END CAP

ADJUSTER NUT

TOP LOCK NUT

TOP LOCK CAP

HOOK PLATES

DIAGONAL PLATE

BRACE END CLEATS

FOOT PADFOOT CLEAT

FOOT ASSY