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    synthetic slates gather moss - how to clean

    First rule is to apply the moss killer so that the tile is saturated, but no or little product actually arrives in the gutter. If the moss killer is well chosen - Mossgo for instance - it will then degrade in non bio-accumulative compounds, and feed a meal or two to your local ground bacteria...
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    How to clean a roof

    It has been done on the continent for many years. The technique consists in using a quaternary ammonium biocide to kill the "bio layer", that is all live organisms on the roof. Quaternary ammoniums are powerful algaecides, and deplete moss and lichen from their embedded algae. As they rely on...
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  7. Roof cleaning

    Roof cleaning

    How we clean a roof without damaging it.
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    Moss on recently replaced roof

    There is only one good philosophy to keep a roof for a longtime : Keep it clean. The insulation should not affect the external envelope. There should be a ventilated gap above the quilt, so both sides of the slates are broadly at the same temperature. There is no lasting cure. Slates have...
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    If the new feature is on the front elevation, you need to clear this with the planners. I found...

    If the new feature is on the front elevation, you need to clear this with the planners. I found them quite helpful really. It's better than a visit from an enforcement officer later.
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    Hi Rusty marks on slates... If it's the nail, the nail disease is on it's way. That is a...

    Hi Rusty marks on slates... If it's the nail, the nail disease is on it's way. That is a longterm problem. Removing rust marks is simple. It involves dissolving the iron oxide. This is done without fuss using a mild acidic paste. You can do it DIY, small batch first for a test. The acid must be...
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