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Author
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Topic: Sap-like bubbles in paint
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provip
Moderator Posts: 1115
From: Victoria, BC, Canada
Registered: Mar 2001
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posted 01-27-2005 11:49 AM
   
If I get the picture, you have a high pitch gable at the troublesome wall. I can see then that this wall may be getting wet a lot especially if it faces the predominant weather activity and if there is no weather barrier like building paper, there may be a lot of moisture getting into the wall more than usuall because of the amount of rain this season. There are forces that could have the potential of displacing sap in the wood and pushing it thru especially if there is no vapout barrier. A vapour barrier prevents diffusion thru the wall. Can you investigate what is immediately behind the plaster? It may have been installed over some kind of existing boarding and there may be no vapour barrier.
Let us know.
Bart
[This message has been edited by provip (edited 01-27-2005).]
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provip
Moderator Posts: 1115
From: Victoria, BC, Canada
Registered: Mar 2001
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posted 01-27-2005 11:35 AM
Hey Jimmy, I know canucks are known to be a little sensitive, but many of us are not. You yanks are going thru some tough times right now and need all the support you can get. Unfortunately, you aren't getting it. Remember, it's tough being at the top.
Now let's see if we can help this canuck.
Bart
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RemodelingGuy
Moderator Posts: 890
From: Houston, Texas
Registered: Mar 2001
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posted 01-27-2005 10:28 AM
Canuck - Canook
Tomato - TomAAAto 
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DavetheCanuck
Registered Posts: 2
From: West Vancouver, BC, Canada
Registered: Jan 2005
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posted 01-27-2005 10:09 AM
Thanks - we haven't made any changes to this area since moving in (5 years ago)... The house is an older tudor style. This interior wall is directly under a gabled roof area - with cedar shingles (15 years old) with a steep pitch. The shingles were installed without tar paper or wrap - breathes well - but we do get the odd drip into the attic. This area is where a few roofing angles meet. Cheers, Dave.
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provip
Moderator Posts: 1115
From: Victoria, BC, Canada
Registered: Mar 2001
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posted 01-27-2005 09:57 AM
Goog Day Canuck, I see you're in West Vanouver so I know about the rain we in this area have been getting lately. I'm in Victoria.
This is one of those things where seeing what you have there really helps.
Some questions:
What is behind the plaster, was it placed over some kind of old boarding.
Have there been anykind of changes made such as new windows, furnace, paint inside or out, number of people living in the house, insulation, etc.???
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Bart Blainey, B.E.R.
Consultant/Journeyman Carpenter
Building Envelope Specialist
Master Renovator
provip@prodeck.org
www.prodeck.org Barton Blainey (provip) specifically assumes no legal liability or responsibility for the accuracy, completeness or usefulness of any information or process disclosed. The above further expressly advises that any use of or reliance upon the information and or opinion disclosed is at your risk .
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RemodelingGuy
Moderator Posts: 890
From: Houston, Texas
Registered: Mar 2001
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posted 01-27-2005 02:12 AM
This is one for provip!He's a fellow Canook as well! ------------------
Jimmy McDonald
http://www.StartRemodeling.com
Jimmy@StartRemodeling.com http://www.ToxicMoldUSA.com
McMoldMan@ToxicMoldUSA.com Jimmy McDonald ( RemodelingGuy) specifically assumes no legal liability or responsibility for the accuracy, completeness or usefulness of any information or process disclosed. The above further expressly advises that any use of or reliance upon the information and or opinion disclosed is at your risk .
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DavetheCanuck
Registered Posts: 2
From: West Vancouver, BC, Canada
Registered: Jan 2005
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posted 01-27-2005 01:23 AM
Hi - I have some strange bubbles showing up on an interior wall. They appeared two days ago for the first time - and we first thought they were simply splattered juice or pop on the wall - but on closer examination they appear to be bubbles in the paint. The bubbles have ruptured and an amber sap-like sticky substance comes out.
In several patches - within 3 ~ 4 sq. ft. of wall area there may be 20 or 30 such bubbles, most are tiny - about 1/16th of an inch in diameter. I wiped the area down with bleach - and then they re-appeared the next day.
Could this be a mold or fungus - or could it be a sap bleeding through from the exterior?
The house is >45 years old - with cedar shakes over this wall - gable area. The paint was here when we moved in almost 5 years ago... I don't know if it is oil or latex. There are some signs of old tobacco staining - but nothing this concentrated. We have had some extreme record breaking rains lately (as much as 150 cm. per day). The walls are plaster in some areas and gypsum board in others - I think this area is plaster.
Thanks for any info or thoughts you might have.
Dave
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