My attic required scaffold for higher areas
My home's attic - spray foamed in 2000, Dormer jump
Unico system in my attic
Unico on wall and energy recovery unit (ERV) on floor
Enthalpic heat exchanger (this is mine)
Spray Foam equipment. High pressure pump and heated lines
Lizzy's attic Pre-foam
My girlfriends attic spray foamed in 2004.
MEAN RADIANT TEMPERATURE - Just got off couch. This shows how much heat is pulled from your body by cold furniture. Still want to set your t-stat way back? Is the comfort sacrifice worth the $2 a month you MIGHT be saving?
Picture from a trade show.
Picture from a trade show
This homeowner noticed an immediate moisture and odor reduction. His dehumidifier runs much less.
All reachable exterior walls were foamed
Same boiler after the basement was insulated
Covered the whole wall, window, and sump pump hose
Airkrete is NOT a spray foam. It is a pre-expanded pumped in foam. This is best for enclosed cavities.
Airkrete has the consistancy of shaving cream which is perfect for pumping into cavities because it flows. It goes where the air goes.
There is a fair amount of pre and post installation work involved. But the comfort and energy results are huge.
Open Cell overspray is significant - needs LOTS of prep
Very nide job on crawl space by Tommy the Sundance Kid.
HMMM! Looks like windwash has uncovered improper baffle installation and fair to poor batt installation.
$400,000 home in Mendon - vintage 2002. Friction installed batts are NOT a durable soffit baffle solution. Apparently batt was used in an attempt to create a cavity between soffit to the baffle instead of properly installing end baffles. Nearly worthless white stuff likely hid the shortcut if the inspector bother to climb into the attic - if the inspector even climbed up to look (doubtful - the attic hatch was a piece of fiberglass)
Fixing wind wash
Removed baffle so vent won't roll back.
master east ceiling
3rd bedroom ceiling
insulation well guarded from wind/cold
fan after cover foamed. shower can boxed upper left - 2nd can that would have been missed.
top plate, windy corner/side of building - pre cellulose
Pete's attic, all done. Cellulose to top of New baffles
No air leaking in here!
Gas line to grille, water lines to kitchen sink
No bugs coming in this corner
Simply LOOKS like a better built house
Register connections tend to be areas of high duct and thermal envelope leakage.
Plumbing penetrations tend to be areas of high stack driven thermal envelope leakage
Foamed under floor
spray foam attic
spray foam dormers
Spray foam Rim and crawl
According to Dave, Craig had holes “big enough to throw a CAT through”
Customers home Jan 8 2010, Almost a shame to cover with drywall.
plastic whole attic to protect from overspray.
Foaming Georgette's son's house.
Foam under manufactured housing - tired of freezing pipes.
Attic - leaving ridge vent for last
lots of particles in the air.
leaving ridge vent for last
Looks pretty good! Challenging area to work!!
Reports that attic is MUCH cooler and A/C in office KEEPS UP for first time ever when OD Temps >85.
spray foam sample
spray foam overspray example
research started in CA 10 years ago.
Ancillary air sealing benefits. 1 & 3 don't meet challenge home requirements.
Partially, fully, and deeply buried ducts in DRY climate.
NOT a drippy mess problem. CLOSED cell
120 town home gut rehab pic on right.
Register boots are huge envelope and duct leakage components.
This illustration indicates which way and at what pressure air wants to go when it is warmer indoors than outdoors. This pressure increases with the temperature differential. Therefore leakage increases as temperature differentian increases. The colder it is the more heat you are leaking.
Front bathroom foamed while walls open. Shows how leaky the walls are to the attic, air goes where the foam goes!
Avoiding full demo
ooof, unpleasant workspace. Open cell to floor was prior work by someone with thermal boundary confusion.
Wow, got that wall SMOOTH!
Wow, crawl looks really nice!
No surprise they put radiant in the floor with that duct! Lots of "sick patient prescribes own medication" here.
Went all the way down basement walls adjacent to exterior.
Rolled right over joists - thermal break
some complicated rooflines
Nice looking house, complicated attics, BIG leakage. Basement and attic foam cut leakage by more than half. Note Bergey in background!
Killing thermal bridging by wrapping the rafter. Reduces likelihood of condensing surface temperatures.
Spray foam sloped ceilings from outside during roof replacement
Don't understand this screwup. what about gable vents?? This happens when they don't want to pay for QC oversight.
Spray foam above sloped ceiling area
From Mike Jag/Jag Construction's "Why Spray Foam" book. It illustrates diminishing returns of additional foam insulation. For the temperature deltas we need to insulate against 3 inches is more than enough. The reason for 3 inches is to keep dew point temperature from reaching indoor surface in winter, and slow larger delta t summer hot roof heat.You might want more if you were building a super high efficiency freezer or a pizza oven. R value benefit drop.
From Mike Jag/Jag Construction's "Why Spray Foam" book.For the temperature deltas we need to insulate against 3 inches is more than enough. You might want more if you were building a super high efficiency freezer or a pizza oven. R value benefit drop.