Explanation
CTP2 = Type roof cap
R = Color of the cap (Red)
125 = Connection diameter
Pressure loss
Dimensions
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CTP2 125 | 83 | 254 | 287 | 125 | 57 | 500 | 385 | 140 | 0.036 | CTP2 160 | 83 | 254 | 287 | 160 | 57 | 500 | 385 | 140 | 0.036 |
Ak [m2] = free area of the hood
Remark
The deposit of lead on slate roofs can be avoided by applying patination oil on the lead roof flashing.
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