SPACE AGE HEAT BARRIER

         DEVELOPED BY NASA TO COOL THE SHUTTLE
TESTIMONIAL

"Die Eerste bewyse dat die dakverf ´n noemenswaardige verskil maak
aan die temperatuur in die stoor. Die stoor is ongeveer op 13 of 14
Januarie geverf.

Die grafiek hieronder aangeheg (ook in die Excell sigblad) stel voor die
logger temperature (gemmeet binne ´n karton met wyn) wat elke 30
minute geneem is (blou) en die maksimum dagtemperature wat by
Nietvoorbij aangeteken is vir elke dag vanaf 5 Desember tot 22 Januarie.

Let op dat die maksimum temp-eratuur binne in die stoor fetlik elke dag die buite temperatuur oorskry het met tussen 3 en 8°C totdat die verf aangewend is en toe is die verskil sowat 4 tot 6° C meer aan die buitenkant. Die "claim" van 10°C verskil kan met reg deur die
verskaffers gemaak word as gekyk word na die beperkte hoeveelheid
data wat tans beskikbaar is.

´n Ander interessantheid is dat die periode van daaglikse maksimum
temperatuur binne die karton verskuif van +- 13h00 – 14h00 tot 17h00– 18h00.

Die verf laat definitief ´n afplattingvan die maksimum temperatuur en ´n vertraging in die bereiking van die temp. piek."

Groete
Riël Tredoux

Research Oenologist / Navorsingwynkundige
Distell PO Box 184 STELLENBOSH 7599 South Africa


 
 
 
 

COVERAGE CALCULATOR

Ceratech needs to be applied at 500  micron (wet film thickness).
The cured thickness should be 325 micron (DFT)

To calculate the quantity of CERATECH Heat Barrier Coating required for your roof:

  1. Measure the floor area below the roof you want to coat
  2. Decide on the pitch of the roof
  3. Select the type of roofing material

Pitch factor

High    12 %
Medium    10 %
Low      8 %


Roof-type factor

IBR     25 %
Corrugated iron     15 %
Smooth cement tiles     25 %
Rough cement tile     70 %


Calculation

Floor area + Pitch factor  + Roof factor = Square metre area to be coated

Apply coverage rate of Ceratech:

   Smooth surfaces    2    sq/metres   ( 2 coats )
    Rough surfaces    1,5 sq/metres   ( 2 coats )


Worked example

Floor Area   200 sq/ metres
Add for Pitch   10% (medium pitch)
  = 220 sq/ metres
Add for Roof Type   25% (IBR)
  = 275 sq/ metres
Coverage   2 sq/ m per litre (smooth surface)
    275 divided by 2
TOTAL = 137.5 litres


Quantity Calculator

Enter the length of the property (1)
Enter the width of the property (2)
Enter the roof 'Pitch Factor' (3)
Enter the 'Roof-Type Factor' (4)

Building Footprint                
                 
(1)                 Length 1 metres            
(2)                Breadth 1 metres            
Total 1 sq/metres   Pitch factor      
   
 
  High    12 %      
(3) Apply pitch factor 12% %   Medium     10 %      
= 1.12 sq/m   Low       8 %      
(4) Apply roofing type 12%
%
           
= 1.2544 sq/m   Roof-type factor      
Total roof area 1.2544 sq/m   IBR     25 %      
        Corrugated iron     15 %      
Coverage 2 sq/m   Smooth cement tiles     25 %      
        Rough cement tile     70 %      
Litres required 0.6272 litres            
add for Wastage etc 39.3728 litres            
Packing 20 litres            
Required 2 Containers (pails)            
Price R 1,300.00 per 20/litre            
Total R 2,600.00              
VAT R 364.00 14%            
TOTAL R 2,964.00              
               
 
 

 


 
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