Snow Melt Patterns On Roof

The differences from house to house new or old can be very impressive.

Snow melt patterns on roof.

If your attic has little or no insulation the snow will disappear quickly. Gently toss the tied off pantyhose onto the edge of your roof to begin melting the snow. Purchase sidewalk salt also called calcium chloride from your local hardware or big box store. The patterns relate to attic insulation.

Winter storm central. I also see plenty of homes with uneven melt patterns across their roofs and this typically means that there is insulation missing in some of the rafter bays or quite likely an interior wall is coming up to the attic and has no air sealing to stop air from moving into the wall cavity from the house and up to the roof. When snow begins to gradually melt off a roof vehicle or other outside structure you might occasionally see some odd patterns develop. If your attic insulation needs a fix the pattern will be patchy.

Place this vertically on your roof near the edge so it will melt a section of snow and ice creating an area where the water can leak off. Because the snow is melting from a heat loss on your roof and not because of warming temperatures the melted snow can refreeze once it travels from your roof creating ice dams that appear as icicles on the eaves and gutters.