Add to GuideAsk a Question

Mysterious Black Powder on Window Sill

Category Windows
Black powder on a window sill could be caused by mold, carpenter ants or other causes. This guide contains information about mysterious black powder on window sill.


Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

By 0 found this helpful
February 4, 2010

Inside my house on a window sill there is a little mound (size of a dime) of what looks like finely ground pepper. I cleared it away and in just a few hours the little mound re-appeared. What could it be?

By nan rae


February 8, 20100 found this helpful
Best Answer

I think it could be carpenter ants. Do you have a tree anywhere near your house that is dead or a decaying bush? That is where carpenter ants come from. I had them once and sprayed all along the perimeter of my basement and they left but someone told me they come from a decaying tree. We had an apple tree that had died and we cut it down but the stump was still in the ground so that is where mine came from.

Reply Was this helpful? Yes
February 4, 20100 found this helpful

That is called black mold and is the kind you don't want to breed. Bleach it and keep the area dry. It grows real fast and can become a problem. It breeds in moisture.

Reply Was this helpful? Yes
February 5, 20100 found this helpful

Assuming you mean a loose material piling up; if so probably ants. Go straight up from the pile and see if you see a small hole or opening in the wall, if so ants are using an area as a dumping ground, causing the debris pile to show up.

Reply Was this helpful? Yes
February 8, 20100 found this helpful

I was just about to post that it sounded like carpenter ants or carpenter bees. I had the same thing on my front porch and watched and they ewre puffing it out of a hole I would have never noticed.

Reply Was this helpful? Yes
Read More Answers
Related Content
Home and Garden Home Improvement WindowsFebruary 2, 2017
Easter Ideas!
St. Patrick's Ideas!
Ask a Question
Share a Post
Better LivingBudget & FinanceBusiness and LegalComputersConsumer AdviceCraftsEducationEntertainmentFood and RecipesHealth & BeautyHolidays and PartiesHome and GardenMake Your OwnOrganizingParentingPetsPhotosTravel and RecreationWeddings
Desktop Page | View Mobile

Disclaimer | Privacy Policy | Contact Us

© 1997-2018 by Cumuli, Inc. All Rights Reserved.

Published by ThriftyFun.

Generated 2018/03/14 03:27:51 in 2 secs. ⛅️️ ⚡️
Loading Something Awesome!