Copper roof cleaning anti moss tape 15cm x 5m Copper is really effective against moss, lichens and algae. This is thanks to the CU 2+ ions, which the copper releases over time. Air and water that has contact with the copper tape will oxidize and release the copper ions which are harmful to moss, algae and lichens. All this is a natural process that is 100% eco-friendly.​ These goods are dispatched on the next working day (or two working days in rare occasion). Delivery within the UK is done by using 48 hours delivery service. The back of the tape is fully coated with butyl adhesive which is self adhesive. This allows the tape to adapt to the shape of the bricks. Montage: It is recommended to not mount the copper tape on the ridge. Instead it should be installed right under the ridge for the most optimal performance. ​ This is because there is a better flow or rainwater on the side of the roof comparing to the ridge that only receives the water that falls directly onto it. Ensure clean and dry surface before the montage to improve its adhesion. Recommended temperature during the installation is 5 degree Celsius or higher as butyl adhesive will be less effective when used on a cold day. To montage place the tape in the desired location, remove protective layer. Finally press the tape with a hand or a roller to ensure that it is stuck to the roof. Returns Process: 1. You may return any items which are damaged, faulty or unwanted. 2. Please notify us of your intention to return an item within 30 days of delivery and have the item returned to us no later than 30 days for a full refund. 3. Afterward, please re-package the items safely and appropriately for transit and include a note stating the reason for return. 4. All items are returned at your own risk. In the event of a returned item being lost, we will require proof of postage. Please keep any postage receipts or post via recorded delivery to avoid any problems.