One way is
with spray foam insulation (Figure 5).
There are so many designs out there, the simplest to go to is the SIP style
with spray foam insulation that adheres the two panel sides.
Not exact matches
Postscript: I spoke
with Steve Strong, the solar business owner, while a crew from National Energy Audits was in the attic, laying down thick additional carpet of
insulation, adding a foil - like radiant barrier under the roof and
spraying foam into spaces around the perimeter of the house — following our recent energy checkup.
(clockwise from top left) the ground floor was excavated and rigid
insulation placed around the perimeter to cut thermal bridging here; airtightness taping around joist ends; new roof rafters insulated
with Icynene
spray foam insulation; airtightness detailing to the roof,
with Pro Clima Intello membrane under internal battening.
The homes are
spray foam insulated
with R20
insulation on the walls, ceiling and floors.
It features an unvented roof
with open - cell
spray foam insulation and vapor retarder paint or coating, or alternatively, closed - cell
spray foam insulation in rafter cavities, and asphalt shingles.
The slab is insulated
with 2» XPS rigid
insulation under slab and the rim joist is insulated
with closed - cell
spray foam insulation.
The slab is insulated
with 2» XPS rigid
insulation under slab and the rim joist is insulated
with closed cell high density
spray foam insulation.
Roof Assembly: R - 60 (nominal) vented attic: existing slate shingles, underlayment, and board sheathing; in knee wall and at sloped ceilings, 1» layer of polyisocyanurate rigid
insulation between rafters, held away at least 1» from board sheathing, covered
with closed - cell
spray foam; attic above flat ceiling has deep layer of cellulose.
The walls consist of 1 1/2» XPS rigid
insulation and R - 19 cellulose
insulation in the stud cavities,
with 2» of closed - cell
spray foam insulation at the rim joist.
Wall
Insulation: Fully advanced framed structure; R - 25 wall
with R - 20 open cell
spray foam and 1» foil faced polyisocyanurate sheathing.
There is no increase in framing materials from standard construction, but the embodied energy of the system increases
with the addition of high density
spray foam insulation.
Roof
Insulation: Unvented roof
with 8.5» R - 30 open cell
spray foam and fully adhered waterproofing membrane under a standing seam metal roof.
Building Science Corporation recently hosted its annual Experts» Session, and the first day was all about
spray foam insulation,
with a collection of people who are mostly in the third camp mentioned above.
Infiltration: Air barrier system is as follows: existing basement slab
with two coats of epoxy paint; taped rigid
insulation on inside of foundation walls;
spray foam at the rim joist; taped housewrap on above grade walls; fully adhered membrane on existing roof sheathing; transitions between roof and above grade walls made by lapping membrane over the housewrap; other transitions made using sealant.
Whole - wall R - value: Using two dimensional heat flow analysis
with thermal bridging effects and average framing factors, it is clear that the thermal bridging through the framing, bottom plate, and top plate reduces the effectiveness of the
spray foam insulation.
The house, a meager 172 square feet and insulated
with two inches of closed cell -
spray foam insulation, has proven inexpensive and effortless to heat — assuming everything is working properly.
The Army, for example, recently spent $ 95 million
spraying tents in Iraq
with foam insulation, slashing air conditioning demands nearly in half and eliminating an estimated 12 fuel convoys a day.
It was built
with FSC tongue and groove cedar siding, metal siding, triple - pane Northern Windows, steel stud construction,
spray foam insulation, Energy Shield wrap, low - VOC wood finishes and paint, a Sun - Mar composting toilet, GE propane range, Kohler sink, Pegasus shower, tankless water heating, Ecoheat electric baseboards, Broan ventilation, LEDs, dimmable CFLs, birch plywood and ultralight drywall finishing, etc..
LeBlanc is kind enough to note my criticisms of shipping container architecture in the article, where I go on about them being «too small, too expensive, and too toxic»; Daniel Kroft of Giant Containers rebuts them, noting that they have lots of steel lying around to reinforce openings, air conditioning is easy
with modern mini-split units, and
spray -
foam insulation does wonders at keeping it all airtight.
In this home, they do that
with Huber's Zip R - Wall sheathing, Benjamin Obdyke's rain screen materials,
spray foam insulation, LG mini-split heat pumps, a Zehnder energy recovery ventilator, and more.
Industry experience has demonstrated that stick - built assemblies insulated
with sprayed polyurethane
foam insulation have higher levels of airtightness than conventionally - constructed, batt insulated assemblies.
However, in previous work, unvented roofs
with air - permeable (fibrous)
insulation, instead of air - impermeable
insulation (
spray foams) have shown localized moisture accumulation at the ridge.
Instrumental in developing sales team's knowledge in the areas of building science and energy conservation in order to provide customers
with the information to successfully plan for, and utilize,
spray foam insulation.
• Particularly effective in roofing, repairing, re-roofing and insulating pre-installed roofs for commercial projects in a timely, organized and team oriented manner • Specialized expertise in EPDM, TPO, PVC and shingling • Skilled in carrying out maintenance and repair of mechanical, electrical and other physical structures • Well - versed in painting of structures, performing carpentry work, repairing plumbing fixtures and woodwork • Excellent physical stamina, ability to climb a ladder, bend, stoop and work in confined spaces • Special talent for metal roofing construction including flashing, wall panels, fascia and soffit • Apt at using various tools needed for cutting hammering and fastening roofing materials • Track record of completing projects in strict accordance
with job specifications, project layout and applicable safety guidelines • Profound skills in installation of low sloped roof systems including TPO, BUR and bitumen • Proficient in carrying - out general roof repairs, exterior siding adjustments and HVAC installation repairs • Particularly effective in removal and installation of all types of commercial roof systems including slate, tile and asphalt • Well practiced in covering roofs
with topping material including sheets, PVC and
spray foam • Adept at utilizing manual and electric tools and maintaining the same in a functional order • Efficient in laying and adhering
insulation with metal fasteners or binding adhesives • Expert in cutting stripes of flashing and fitting into angles formed by walls, vents and intersecting roof surfaces • Firsthand experience in carrying out regular preventive maintenance of pre-installed roofing systems • Substantial knowledge of various roofing systems and associated installation protocols • Familiar
with OSHA workplace safety guidelines • Excellent listening skills
with profound ability to follow verbal and written instructions to book • Great attention to detail
with proven skills in interpreting and implementing given drawings and blueprints
with accuracy • Strong numeracy skills, apt at generating accurate cost estimations for given projects