Black On Roof Deckin Attic Inspect

Black mold on roof shingles is most common on homes in rainy storm plagued climates especially on ill equipped homes with insufficient roof drainage.

Black on roof deckin attic inspect.

In the vast majority of cases the mold growth is caused by condensation. Decking and framing condition other contractors point out that an attic inspection. Are these just stains. There did not appear to be any mold or mildew on the surface but i could see black spots.

This was on the under side of the roof decking. Or maybe i can cover the underside of the roof decking between rafters with rigid foam insulation pink color to cover all the nails to totally eliminate condensation around nails or maybe cut the protruding part of all the nails to reduce amount of condensation. If these isolated spots are seen away from these roof penetrations then the roof may be damaged and leaking. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.

Replacement of the roof decking something to consider if you plan on replacing the roof. Finally as mentioned before this staining will not go away on its own consider this if you ever sell in the future as it will most certainly be called out by an inspector at the next inspection. These are commonly seen underneath roof vents plumbing stacks vent hoods and around chimneys. Roof decking section located above the attic entrance might be your first encounter with attic black mold.

Even in this case in our opinion the reasons to remove and replace roof sheathing and framing would normally be based on the condition of the roof framing and sheathing not on the. The brown black attic mold on plywood in the left hand photo is easy to spot and is often an allergen or problematic attic fungus like cladosporium sp pithomyces chartarum ulocladium sp or aureobasidium pullulans but the light colored mold on the tongue and groove pine roof sheathing in the right photo was found to be penicillium sp. Stains on the interior walls. Roof mold health risks.

Roof leakage can often be seen as dark black stains concentrated and radiating out from one or more individual locations. Also one of our central air heat unit is in the attic. Allows estimators to gauge the condition of the framing both for rot and spacing between framing members to ensure that the roof is structurally sound and can support the weight of new shingle loads. Many of these same homes are vulnerable to roof leaks which allow water and mold growth to spread into attics top floors and more.

The house was thirty years old. No moisture detected and the roof is new. Pre cut piece of a blanket insulation glued to the hatch will do the job if it has a paper facing or any other vapor retarder type apply paper to the hatch material surface. In our roof interior attic photo at left you can see antique roof framing along with black stains and probably some mold growth from a long history of roof leaks.