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From: Michael Hudson <mike@rithmdesign.co.za> Date: 27 May 2011 10:44:50 AM SAST To: francois@perspex.co.za Cc: Osvaldo Capindissa <osvaldo@gwarchitects.co.za> Subject: Re: HOV_A9.1003_Information Required Hi Osvaldo Thank you Francois for the reference, this is exactly the type of job that we specialize in.  Please have a look at some of the work we have done on our website:  www.rithmdesign.co.za Here is some info regarding panel sizes and thicknesses when fabricating with Perspex:  ­ Standard sheet size: 3200x1930  ­ Maximum panel size before warping (thermally induced deflection of material) occurs. For  3mm: (max.) 550mm square up to 500mmx3000mm.  ­ Maximum panel size before warping (thermally induced deflection of material) occurs. For  6mm: (max) 1000mm square up to 900mmx3000mm.  ­ Distance from light source to panel for even lighting effect (also considering cost  effectiveness and power consumption): 200 ­ 250mm For a stairwell application like this I would not suggest using anything less than 6mm sheet for  the sake of durability. This job could be done very successfully with the Kubik profile. (see most jobs in our  showcase but especially Media 24, Naspers Building). The aluminium profile that holds the  Perspex is structural and can be up in any frame size and installed easily in a modular  fashion. We can consult on design, then fabricate and install, including all lighting. We also have many other clever fabrication and lighting (LED would be cost effective here)  solutions that I would be happy to discuss with you. If you would like to meet up, please let me know when is convenient for you and I will bring  some Perspex, Kubik and lighting samples along. Kind Regards Michael Hudson Rithm Design +27 82 714 9592 +27 21 447 6562 www.rithmdesign.co.za On Fri, May 27, 2011 at 8:05 AM, <francois@perspex.co.za> wrote:


Hi Osvaldo  Just to confirm that I did receive your mail. I will forward this to the Rithm Design to provide you with the required information.  The owner, Mike Hudson will contact you shortly.  Best regards 

Francois van der Merwe Business Manager Perspex SA (Pty) Ltd 0836565174 

Osvaldo Capindissa <osvaldo@gwarchitects.co.za> 26/05/2011 14:21

Tofrancois@perspex.co.zaccSubjectHOV_A9. 1003_Information Required

Ref: HOV_A9.1003_Information Required Dear Francois HOVE ROAD . Alteration + Additions to Existing Dwelling on ERF 1210. CAMPS BAY . 10|HOV|200

RE: INFORMATION REQUIRED As per our telephone conversation, please find attach the drawings of what we propose for a light feature in the entrance staircase of an 3 storey apartment block. This light will always have to be on, since the stairwell does not receive any natural light. A light steel frame with perspex panels, with fluorescent lighting in between, that will run from the ground floor all the way to the second floor in between the two stair flights. We are still unsure whether we want to use square panels, or whether we want to create a framework with more random perspex panel sizes.

If you can please provide us with all the information regarding perspex panel sizes and thicknesses to help us with the initial design process. Please don't hesitate to call if you need any further information. Kind Regards Osvaldo GREGWRIGHT a r c h i t e c t s T : +27 21­465 9775


F : +27 21­465 9778 Email :osvaldo@gwarchitects.co.za Web : www.gwarchitects.co.za Reg No: 2001/011654/07           All information contained herein is private & confidential and may be subject to legal privilege. Access to this e-mail and any attachments hereto by anyone other than the intended recipient are unauthorised. If you are not the intended recipient, you may not use or distribute, disseminate and/or disclose the contents herein and are to delete the e-mail from your computer and please notify us immediately by e-mail or telephone at +27 82 855 6946 ATTACHED: [attachment "Light Feature.pdf" deleted by Francois van.der.Merwe/ZA/ACRYLICS]


Re_ HOV_A9.1003_Information Required1  

­ Standard sheet size: 3200x1930 ­ Maximum panel size before warping (thermally induced deflection of material) occurs. For 3mm: (max.) 550m...

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