LORO-X roof drainage systems LORO-X solutions Inverted roof Note drainage level: The drainage of an inverted roof with thermal insulation above the roof sealing membrane requires that the drainage levels are determined. Possible drainage levels: 1. on the sealing membrane 2. above the thermal insulation 3. above the gravel layer In addition a layer of gravel or vegetation is often placed over the thermal insulation providing some load on it: If a layer of gravel or vegetation is present, the corresponding discharge coefficient must be included in the dimensioning calculation. The emergency drainage must be arranged above the water level planned for the main drainage, and should be agreed with the LORO Service Team. LORO-X DRAINLET ® Roof drain basic unit Item no. 21902.100X LORO-DRAINLET ® Strainer unit for inverted roof Item no. 19494.000X LORO-X RAINSTAR ® D 6 Internal External + loose flange Item no. 01378.000X + LORO strainer unit Item no. 19494.000X