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:
- Measure the floor area below the roof you want to coat
- Decide on the pitch of the roof
- 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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|