HELP - AIR SEALING a Continuous Stone Interior/ Exterior Wall

I just recently audited a home that had a blower door number of 11,684 CFM50 and/or 11.81 ACH50. And of course one of the main air infiltration culprits was a stone face wall that was continuous on the outside and inside of the building envelope. The basics as I see it is this: the 1/4" stone joints allow air to freely flow into the house.

Does anyone know of any good methods to seal a high-end stone wall air leakage like this? 

Thanks.

Below are some photos:

PHOTO OF HOUSE Stone Wall Located Bottom Right

CLOSEUP PHOTO OF HOUSE Stone Wall / Back Exterior Door (OUTSIDE)

INFRARED/ ACTUAL Stone Wall/ Back Exterior Door (INSIDE)

INTERIOR WALL - INFRARED / ACTUAL



Views: 3655

Reply to This

Replies to This Discussion

Try log cabin chinking.

Air sealing a wall like this must be done with a vapor diffusive material or you will get spalled stone faces from sealing materials holding water. I recommend mixing hydrated lime with local clay soils, this is the way they have been sealed for millenia. Vapor open and beautiful. Do not use cement based products to fill the gaps as these are not vapor diffusive.

I've drilled wood window and door jambs on double wythe brick walls and then dense packed.  Helped a lot.  Dunno if that applies to your job.

Lots of interesting ideas.  Typically in the North East we would have just skinned stone on a masonry wall. You could mortar the joints. Obviously you could seal it an close it.  I would seal it with open cell spray foam, Keep the permeability between 3 and 10 perm.  Then air space and interior surface, like green board on steel or timber studs.

I hate to cover it.  The answer for the 100 year old stone foundation in a cheap farm house would be drylock on well prepared surface.

I liked the suggestion to look elsewhere.  You know where the air is coming in, so try to stop the air getting out.  Also, put some nice french doors inside these doors to separate this space from the rest of the house.  Obviously large open vertical columns of air, create their own motivating pressure.  But if you can seal the top, it will slow the infiltration in the bottom. 

RSS

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Allan G Hurst replied to Simon's discussion Advice needed please in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Simon:  My reason for using a fully calibrated Minneapolis Blower Door system is to…"
3 hours ago
Allan G Hurst joined Allison A. Bailes III's group
Thumbnail

HVAC

HVAC design, Manuals J, S, T, & D, Duct leakage, Air flow, ENERGY STAR new home requirements,…See More
4 hours ago
Michael Dunseith commented on Michael Dunseith's photo
Thumbnail

Proof is possible Tour - Corbett Lungsford

"Oldest House in America to have a Blower Door Test  - Cira 1652"
5 hours ago
Michael Dunseith posted a photo

Proof is Possible tour, with BPI

Corbett and Grace , Proof is Possible Tour hosted by ZERO DRAFT, Ithica, NY. BPI Crew
6 hours ago
Sandra K. Adomatis, SRA posted photos
6 hours ago
Sean Lintow Sr replied to Larry Nissman's discussion Foam insulation on attic floor
"The insulation job is quite simply a freaking eyesore & mess - with that it shouldn't be…"
13 hours ago
Sean Lintow Sr replied to Melissa Baldridge's discussion IECC 2012 & 2015 Compliance & HRVs
"commercial is 67% efficiency & 2.8 cfm per watt for residential as I recall on 2015 which…"
13 hours ago
Simon added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
Thumbnail

Advice needed please

I'm looking to build my own blower unit for use with the minneapolis system.Please could anyone…See More
16 hours ago

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service