Gibbo
Well-Known Member
It's also crap looking lolMono is an open matrix hence why you see so many jobs with staining from various sources, your best to future proof it i.e. By using decent screws for Down pipes etc or cleaning any mound off copings, if you seal it, it might not stop marks appearing over time but its just wiped off. I always seal any copings too at the same time. Water bubbles up like a lotus leaf and runs down the surface rather than being absorbed so avoids any ghosting too.my biggest bug bear is brick dust and the like once we've rendered and they hammer drill there fixings through it and leaves tinges of red dust on the render if it's sealed it just hoses off.