Teknos Rensa Roof Wash is an efficient detergent for washing of tile roofs and previously painted very dirty sheet-iron roofs. It is a pre-treatment agent for maintenance painting. It is primarily for washing old tile roofs before painting with paint for tile roofs. Rensa Roof Wash removes very efficiently both dirt and algae, moss and lichen growth.
Rensa Roof Wash is also suitable for washing of painted very dirty sheet-iron roofs before maintenance painting.
Rensa Roof Wash is environmentally friendly and biodegradable. It meets the requirements by OECD and by the Detergent regulation of European Parliament and the Council on detergents for biodegradability (OECD 301B, EC 648 / 2004).
Direction For Use
Dilute Rensa Roof with water depending on the purpose of its use:
For washing of and pre-treating surface to be painted: 1 : 6 (1 litre of detergent to 6 litres of water)
For very dirty surfaces: 1 : 3
Remove loose dirt, moss and growth from the roof by brushing and/or using a pressure washer. Wet the tile surface with water before applying the detergent. This prevents the detergent from absorbing too much and drying too fast. Apply the detergent to the surface to be cleaned by using e.g. a brush or low-pressure spray (so-called garden spray). Let it act for about 20 minutes. Enhance the cleaning effect by brushing strongly.
NB: The detergent must not dry on the surface to be cleaned - wet the surface again with the washing fluid, if needed. Rinse the surface thoroughly with a plenty of clean water by using a pressure washer.
Rensa Roof Wash is an efficient, but environmentally friendly and biodegradable product.However, using the detergent must be followed with a reasonable caution. Avoid skin contact and breathing the spray mist. Protect eyes from splashes. See Material Safety Data Sheet.
The detergent may harm garden plants – avoid unnecessary splashing. The most sensitive plants can be covered or wetted with water before the treatment. The detergent may matten or lighten surfaces – avoid unnecessary splashing.