How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Rick Your Own Question

Rick
Rick, General Contractor
Category: Home Improvement
Satisfied Customers: 13557
Experience:  Licensed construction supervisor with 35+ yrs. experience.
Type Your Home Improvement Question Here...
Rick is online now
A new question is answered every 9 seconds

I have a vaulted ceiling with attic space above it. I have

Customer Question

I have a vaulted ceiling with attic space above it. I have recently noticed I can see where each of the rafters is located as dark lines are starting to form where ever the rafters are located. The attic space where this is happening has 12 in faced insulation laid between the rafters. There are vents in the roof for air circulation and the soffit vents are not obstructed. What is causing this ghosting and more importantly what can I do about it? The house is 12 years old. If I paint the ceiling with a stain blocker and the paint over it will the ghosting come back and how soon?
Submitted: 1 year ago.
Category: Home Improvement
Expert:  Rick replied 1 year ago.

Rick :

Welcome, my name is XXXXX XXXXX X will do my best to help you with your issue

Rick :

Do you burn candles?

Rick :

Or have a lot of wood fires?

Customer:

no to both

Rick :

What type of heat do you have in the house?

Customer:

gas furnace high efficiency

Rick :

Well, there doesn't seem to be any of the normal sources for this type of issue which is usually caused by smoke collecting on the wall and ceiling surfaces. It shows up the outlines of the studs or ceiling joist or rafters because they are a different temperature than the surrounding insulated areas. That said you can prime this area with a shellac based stain blocking primer like Bin or Kilz. It must be the shellac based version. Then apply your top coat. This will block the stains from bleeding through. There is no way to tell when or if they will return

Customer:

Last question.

Customer:

What you are telling me is that some form of dirt or soot is in the air and the difference in temp on the surface of the ceiling space is attracting it causing the ghosting

Rick :

That is usually the cause when this type of "ghosting" shows up.

Rick :

The uniformity of the pattern eliminates other likely causes

Customer:

Thanks you just partially answered my next question but still what is say another potential cause?

Rick :

I know of no other causes for this type of issue. That's not to say no other cause exists. I've seen exactly what you describe several times in person and have heard about many other similar cases.

Customer:

Thanks for your help

Rick :

You're welcome!

Rick, General Contractor
Category: Home Improvement
Satisfied Customers: 13557
Experience: Licensed construction supervisor with 35+ yrs. experience.
Rick and 4 other Home Improvement Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
< Last | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Thank you for the expeditious answer. It's good to know you're out there and awake in the wee hours when I finally have time to ask questions about my Jenn Air. Jean Riverhead, NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • The Home Smithy

    Home Builder

    Satisfied Customers:

    2002
    #1 Home Improvement Expert 30+ years experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/TH/TheHomeSmithy/2011-8-13_11146_homesmithy.500x500.64x64.jpg The Home Smithy's Avatar

    The Home Smithy

    Home Builder

    Satisfied Customers:

    2002
    #1 Home Improvement Expert 30+ years experience
  • http://ww2.justanswer.com/uploads/BS/bshull17/2011-2-11_04125_japic.64x64.JPG Brian's Avatar

    Brian

    Architect

    Satisfied Customers:

    1967
    Licensed Architect- 16 years, L.E.E.D. AP
  • http://ww2.justanswer.com/uploads/ST/Steve555/2013-6-14_144343_Depositphotos4247517S.64x64.jpg Steve G.'s Avatar

    Steve G.

    Handyman

    Satisfied Customers:

    135
    VP of electronic repair company and home theater advisor.
  • http://ww2.justanswer.com/uploads/ER/Erdaram/2011-6-21_14724_ANIEric4Pics.64x64.gif Eric M. Bright's Avatar

    Eric M. Bright

    We Don't Comprehend the Word Can't!

    Satisfied Customers:

    1734
    I've been been doing things for my clients that others have said cant be done for over a 1/4 Century
  • http://ww2.justanswer.com/uploads/rich03dungo/2010-3-17_101556_tshirt2.jpg Rich's Avatar

    Rich

    Home Improvement Enthusiast

    Satisfied Customers:

    674
    Over 35 years construction and home maintenance experience
  • http://ww2.justanswer.com/uploads/AL/alumalite/2012-5-10_234018_shutterstock506249951forJA500.64x64.jpg Phil's Avatar

    Phil

    Mechanical Engineer

    Satisfied Customers:

    409
    Retired contractor, 51 years experience
  • http://ww2.justanswer.com/uploads/JE/jerrymassie/2011-1-15_45937_1111055.64x64.JPG Jerry's Avatar

    Jerry

    hearth products

    Satisfied Customers:

    317
    owned and operated stove retail and service 12 yrs