Tag: How can noticing moss or algae on certain roof areas point to moisture or shade problems?

Moss and algae on a roof usually show up where conditions stay damp and shady. A little bit in a very wet climate isn’t unusual, but heavy growth in specific spots suggests that those areas don’t dry out properly. This can mean that water is lingering due to poor drainage, sagging sections or debris. Constant moisture, over time, can degrade roofing materials faster, weaken protective layers and eventually lead to leaks. It also points to shade patterns – maybe an overhanging tree keeps that part of the roof damp, or nearby...