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Marine Climate

Reference

Connector plate and drywall clips

Connector plate and drywall clips

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Right – This wall is constructed with the sill plate overhanging the top of the foundation wall so that when rigid foam is installed on the exterior of the foundation wall, its surface will align with the surface of the wall sheathing.

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How to Keep Attic Vent From Freezing Up in Winter

Video

Video describing techniques to prevent attic plumbing vents from freezing during Alaskan winters.

Raised-Heel Trusses

Reference

Information sheet with the definition and uses for a raised truss.

Advances in Manufactured Home Energy Efficient Design

Advances in Manufactured Home Energy Efficient Design

Presentation

Webinar explaining advances in energy efficient design for manufactured homes.

Foundation wall interior polyisocyanurate, foil-faced, exposed

Foundation wall interior polyisocyanurate, foil-faced, exposed

CAD File

Wall Assembly | Madrona Passive House

Video

Video describing the wall assembly of a passive house.

Thermal bridging can be reduced when attaching metal panel cladding to a metal-framed building by attaching the cladding to hat channel that is attached to vertical anchors with clip anchors and screws through the sheathing to the steel studs

Thermal bridging can be reduced when attaching metal panel cladding to a metal-framed building by attaching the cladding to hat channel that is attached to vertical anchors with clip anchors and screws through the sheathing to the steel studs

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DOE ZERH HIA 2013 Case Study: Preferred Builders, Old Greenwich, Connecticut

Case Study

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Old Greenwich CT, that scored HERS 42 without PV and HERS 20 with PV.

When architects and builders think of the house as a systems, all of the parts are designed to work together for a healthy, durable home that minimizes builder callbacks while cutting energy, maintenance, and repair costs down the road.

When architects and builders think of the house as a systems, all of the parts are designed to work together for a healthy, durable home that minimizes builder callbacks while cutting energy, maintenance, and repair costs down the road.

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Termite shield with exterior rigid foam above and below

Termite shield with exterior rigid foam above and below

CAD File

Waverly Home Addition | Exterior Cladding Details

Video

Video describing the exterior cladding details of a residential home addition project.

The thermal boundary for a gable roof can be located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic

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The exterior walls of this home consist of two wall cavities: a 2x6 wall with plywood sheathing plus 8-inch I-joists sheathed with engineered wood; both cavities are dense-packed with cellulose for R-60 total.

The exterior walls of this home consist of two wall cavities: a 2x6 wall with plywood sheathing plus 8-inch I-joists sheathed with engineered wood; both cavities are dense-packed with cellulose for R-60 total.

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Right – A 1-inch layer of XPS rigid foam covers the 2x6 wall studs and is topped by ½-inch-thick plywood sheathing, which is covered with draining house wrap and serves as a nailing surface for siding and trim.

Right – A 1-inch layer of XPS rigid foam covers the 2x6 wall studs and is topped by ½-inch-thick plywood sheathing, which is covered with draining house wrap and serves as a nailing surface for siding and trim.

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Right: Ductwork is installed in direct contact with lower truss cords. In this picture the main trunk is laying on the truss cords and branch ducts are temporarily held with strapping across truss cords. Ducts are well sealed with mastic

Right: Ductwork is installed in direct contact with lower truss cords. In this picture the main trunk is laying on the truss cords and branch ducts are temporarily held with strapping across truss cords. Ducts are well sealed with mastic

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A low-sloped shed roof with the thermal boundary located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic

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The builder installed 1.5 inches of soy-based spray foam on the outside of the walls over the OSB sheathing, then kept a ¾ inch gap between the foam and the brick veneer siding to allow moisture vapor from the bricks to dissipate.

The builder installed 1.5 inches of soy-based spray foam on the outside of the walls over the OSB sheathing, then kept a ¾ inch gap between the foam and the brick veneer siding to allow moisture vapor from the bricks to dissipate.

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These factory-built walls consist of 9.5-inch I-studs sheathed with coated OSB, faced with OSB, and dense-packed with cellulose; a second interior surface of drywall is added to provide a 1.5-inch cavity for electrical wiring.

These factory-built walls consist of 9.5-inch I-studs sheathed with coated OSB, faced with OSB, and dense-packed with cellulose; a second interior surface of drywall is added to provide a 1.5-inch cavity for electrical wiring.

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Right – R-23 of blown fiberglass fills the walls and unvented vaulted attic cavities of this marine-climate home while an additional R-20 (4-inches) of graphite-enhanced expanded polystyrene is installed above the roof sheathing.

Right – R-23 of blown fiberglass fills the walls and unvented vaulted attic cavities of this marine-climate home while an additional R-20 (4-inches) of graphite-enhanced expanded polystyrene is installed above the roof sheathing.

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Rigid foam provides intermittent thermal breaks in a continuous slab floor with triple-pane-glass exterior wall panels in this multistory, multifamily building; stainless steel rebar provides structural support through the thermal break

Rigid foam provides intermittent thermal breaks in a continuous slab floor with triple-pane-glass exterior wall panels in this multistory, multifamily building; stainless steel rebar provides structural support through the thermal break

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These prefabricated rebar assemblies use stainless steel and rigid foam to provide a thermal break where a concrete floor slab passes through the exterior wall of a multistory building; the stainless steel is connected to carbon steel rebar

These prefabricated rebar assemblies use stainless steel and rigid foam to provide a thermal break where a concrete floor slab passes through the exterior wall of a multistory building; the stainless steel is connected to carbon steel rebar

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Are the Walls Closing In?

Are the Walls Closing In?

Presentation

Webinar describing research on moisture performance in high-R walls.

Interior wall attached with top plate metal connector, drywall clips support drywall, side view

Interior wall attached with top plate metal connector, drywall clips support drywall, side view

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Structural headers are not needed on nonbearing walls

Structural headers are not needed on nonbearing walls

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The OSB roof decking product comes with an adhered radiant foil barrier which helps to prevent heat transfer in or out of the vented attic, while R-13 unfaced fiberglass fills the advanced-framed 2x6 walls.

The OSB roof decking product comes with an adhered radiant foil barrier which helps to prevent heat transfer in or out of the vented attic, while R-13 unfaced fiberglass fills the advanced-framed 2x6 walls.

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Completed wall retrofit of masonry home (on right) showing new lap siding attached over four inches of rigid foam; windows were boxed with plywood to accommodate depth of foam plus 1x4 furring strips

Completed wall retrofit of masonry home (on right) showing new lap siding attached over four inches of rigid foam; windows were boxed with plywood to accommodate depth of foam plus 1x4 furring strips

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Your Northern Home: Walls

Video

Video describing how walls in cold climates must address three key issues: air leakage, moisture movement, and conductive heat losses.

A double layer of hat channels installed at 90-degrees to each other with stainless-steel screws through the rigid foam to anchor cladding to steel studs with less thermal transfer; the second layer of hat channels provides increased rigidity

A double layer of hat channels installed at 90-degrees to each other with stainless-steel screws through the rigid foam to anchor cladding to steel studs with less thermal transfer; the second layer of hat channels provides increased rigidity

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