Teknos Rensa Roof Wash

UN1760 (Class: 8, Pk Grp: III)
A pretreatment agent for maintenance painting.
Available in 1 and 5 Litres
From £7.20 £6.00
In stock
Only %1 left
Product Description

Teknos Rensa Roof is an efficient detergent for the washing of tile roofs and previously painted very dirty sheet-iron roofs.

Best Uses

Teknos Rensa Roof is a pretreatment agent for maintenance painting. It is primarily meant for washing old tile roofs before painting with Teknos Kirjo Tile paint for tile roofs. It removes very efficiently both dirt and algae as well as lichen growth. It is also suitable for washing painted very dirty sheet-iron roofs before maintenance painting.


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 a brush or low-pressure spray such as a garden spray. Let it act for around 20 minutes. Enhance the cleaning effect by brushing strongly.

Note: 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.

Technical Details


Teknos Rensa Roof 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).

Technical Info

Components: Single Pack
Type: Detergent
Finish: n/a
Stock Colours: n/a
Tintable: No
VOC Content: -
Volume Solids: -
Suitable Substrates: Tile roofs, sheet iron roofs
Application Method: Brush or low pressure garden spray
Theoretical Coverage: 35 m² / 1 l undiluted detergent.
pH: abt. 10
Dilution for washing & Pre-treating: 1 : 6 (1 litre of detergent to 6 litres of water)
Dilution for very dirty surfaces: 1 : 3
Packaging: Available in in 1 and 5 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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