Patrick Michaelyan
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  • Arlington, VA
  • United States
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Patrick Michaelyan's Discussions

Basement Renovation - Concerns & Ideas
1 Reply

Good morning pros!I am bidding on a basement renovation of a two story brick home in Arlington, VA. The first story is partially below grade. The foundation walls are CMU construction.Here are some…Continue

Started this discussion. Last reply by Richard Beyer Mar 26.

Closed-Cell Foam & Brick Walls
4 Replies

Hello Pros.I have been reading up on the use of closed-cell foam applied to brick (foundation) walls.I live and do business in northern Virginia, where we have a heating dominated climate with hot…Continue

Started this discussion. Last reply by Patrick Michaelyan Mar 15.

Rigid Foam (Polyiso) as a Weather-Resistive Barrier
10 Replies

Hello pros!I have done much reading on the subject and am still in need of a final round of feedback on using foil-faced polysio board as a weather-resistive barrier (WRB).I completed a project over…Continue

Started this discussion. Last reply by Dennis Heidner Mar 18.

Insulating the "walls" of a mansard-style roof.
20 Replies

Hello pros.Please see the attached pictures.Any insights on how you would insulate the 2nd story walls of this house? The house is located in the suburbs of Washington D.C.Thanks!Patrick…Continue

Started this discussion. Last reply by Robert Haverlock Jan 13.

 

Patrick Michaelyan's Page

Latest Activity

Patrick Michaelyan's discussion was featured

Basement Renovation - Concerns & Ideas

Good morning pros!I am bidding on a basement renovation of a two story brick home in Arlington, VA. The first story is partially below grade. The foundation walls are CMU construction.Here are some pictures of the foundation walls with the wood paneling removed:…See More
Mar 29
Richard Beyer replied to Patrick Michaelyan's discussion Basement Renovation - Concerns & Ideas
"Sounds like you have it under control. May I recommend adding drainage inside the basements perimeter to make up for the hydrostatic issues hidden beneath the floor and direct them to a sump. Also adding waterproofing sheet membranes on the walls…"
Mar 26
Patrick Michaelyan posted a discussion

Basement Renovation - Concerns & Ideas

Good morning pros!I am bidding on a basement renovation of a two story brick home in Arlington, VA. The first story is partially below grade. The foundation walls are CMU construction.Here are some pictures of the foundation walls with the wood paneling removed:…See More
Mar 24
Dennis Heidner replied to Patrick Michaelyan's discussion Rigid Foam (Polyiso) as a Weather-Resistive Barrier
"I believe PolyISO can absorb moisture if it gets wet... and it would get heavy.  Make sure any punctures in the foil are sealed well. Have you looked at the DOE's Building America website for notes on projects like this.  I believe…"
Mar 18
Patrick Michaelyan replied to Patrick Michaelyan's discussion Closed-Cell Foam & Brick Walls
"Thank you Brad, that is very helpful."
Mar 15
Patrick Michaelyan's discussion was featured

Closed-Cell Foam & Brick Walls

Hello Pros.I have been reading up on the use of closed-cell foam applied to brick (foundation) walls.I live and do business in northern Virginia, where we have a heating dominated climate with hot and humid summers.I had no concerns spraying foundation walls of basements and crawl spaces with closed-cell foam (typically 2") until I was asked about whether brick walls can actually be compromised by spraying them with closed-cell foam.I understand building science, and therefore why I have become…See More
Mar 15
Brad Cook replied to Patrick Michaelyan's discussion Closed-Cell Foam & Brick Walls
"Here in central Vermont, we see houses from the 1800s with brick walls as part of the foundation, but the brick is not structural. Large slabs of granite are holding up the typical 8x8 sill beam. If we were to spray SPF (Spray Polyurethane Foam) on…"
Mar 14
Patrick Michaelyan replied to Patrick Michaelyan's discussion Closed-Cell Foam & Brick Walls
"Thanks Sean."
Mar 12
Sean Lintow Sr replied to Patrick Michaelyan's discussion Closed-Cell Foam & Brick Walls
"Check out http://www.buildingscience.com/documents/insights/bsi-011-capillarity-small-sacrifices & they did have one other on spalling for spraying above grade walls. If worried maybe consider using Delta Dry on walls & then…"
Mar 12
Patrick Michaelyan posted a discussion

Closed-Cell Foam & Brick Walls

Hello Pros.I have been reading up on the use of closed-cell foam applied to brick (foundation) walls.I live and do business in northern Virginia, where we have a heating dominated climate with hot and humid summers.I had no concerns spraying foundation walls of basements and crawl spaces with closed-cell foam (typically 2") until I was asked about whether brick walls can actually be compromised by spraying them with closed-cell foam.I understand building science, and therefore why I have become…See More
Mar 12
Patrick Michaelyan's discussion was featured

Rigid Foam (Polyiso) as a Weather-Resistive Barrier

Hello pros!I have done much reading on the subject and am still in need of a final round of feedback on using foil-faced polysio board as a weather-resistive barrier (WRB).I completed a project over the summer where I used Tyvek (lapped and taped) as the WRB with 3/4" foil-faced (FF) polyiso over the Tyvek, and then installed 1/2" wood sleepers beneath the new siding as a drainage plane and air space.I did this because I read that FF polyiso (and other closed-cell foam boards) should not be…See More
Mar 10
Tom Mallard replied to Patrick Michaelyan's discussion Rigid Foam (Polyiso) as a Weather-Resistive Barrier
"From a lot of these runs, I'd suggest you can leave the batting alone, my take is to not touch the interior at all for this, remove any vapor barrier from the exterior sheathing, box out for windows and all then add on the insulation &…"
Mar 6
Patrick Michaelyan replied to Patrick Michaelyan's discussion Rigid Foam (Polyiso) as a Weather-Resistive Barrier
"Wow, thanks Tom. Pictures (images) really can tell a lot. I am a couple weeks out before we begin removing the existing siding, trim, etc.  The most recent idea was to re-insulate the cavities with R-13 un-faced batts, sheath the walls with…"
Mar 6
Tom Mallard replied to Patrick Michaelyan's discussion Rigid Foam (Polyiso) as a Weather-Resistive Barrier
"By using insulation on the outside of the structure, you reduce conduction losses. These thermal modeling runs were 400-minutes with a 20C temperature differential, by adding 1-1/2" insulation board on the outside of the sheathing and using…"
Mar 6
Patrick Michaelyan replied to Patrick Michaelyan's discussion Rigid Foam (Polyiso) as a Weather-Resistive Barrier
"Thanks Sean!"
Mar 3
Sean Lintow Sr replied to Patrick Michaelyan's discussion Rigid Foam (Polyiso) as a Weather-Resistive Barrier
"First off - way to go, a rain screed detail is one of the best things you can do If going with foam, a double layer is best if you offset the seams as Joe Lstiburek has found out - foam expands & contracts. If you don't go that route,…"
Mar 3

Profile Information

Company
Positive Energy Construction Co.
Professional Certification
BPI Building Analyst & Envelope Pro, HERS Rater
Professional Interests
Comprehensive home performance retrofits.
Website URL
http://www.PositiveEnergyVA.com
Twitter ID
PosEnergyLLC
Facebook Page
http://www.facebook.com/groups/379331755423371/
LinkedIn Profile
http://www.linkedin.com/profile/view?id=39635193&trk=tab_pro

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At 10:58am on November 30, 2011, Diane Chojnowski said…

Hi Patrick,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!


Thanks!
Diane, HEP Moderator

 
 
 

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