All Details

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Details // HVAC & Mechanicals

A Simple Balanced Ventilation System

Two fans talk to each other to replace stale air with fresh air  

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Details // Framing, Insulation & Air Sealing

Raised Heel Roof Framing Options That Make Space For Insulation

Whether using roof trusses or stick framing a roof frame, if you make space above the exterior walls, your energy performance will thank you.  

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Details // Framing, Insulation & Air Sealing

Airseal the Rim Joist and Wall Framing Connection

Glue the rim joist, caulk the gaps, and overhang the wall sheathing to tighten this leaky building assembly  

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Details // WRB & Flashing, Insulation & Air Sealing

Flashing Pipes, Framing, and Exhaust Vents in Exterior Walls

For walls with a pre-applied weather barrier, make sure the tape is compatible with the WRB coating—or use a primer  

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Details // Framing

Advanced Framing for Framers

A collection of details that make sense for most framers to incorporate into their SOP—based on feedback from framers who do it a lot.

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Details // Roofing, WRB & Flashing

Flashing a Wood-Framed Chimney w/a Copper Cricket Cap

Flashing a wood-framed chimney is like flashing a dormer, except there’s no roof behind it. Without protection, water can leak into the joint and rot your walls to direct uphill water away

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Details // Roofing, Siding & Exterior Trim, WRB & Flashing

Kickout Flashing That Won't Leak

Ground zero for roof rot is often where roofs meet walls.

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Details // WRB & Flashing, Windows & Doors

Innie Window Details for Walls with Thick Exterior Insulation

Recessed into thick layers of insulation, innie windows are protected from the weather  

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Details // Framing, Siding & Exterior Trim, WRB & Flashing, Insulation & Air Sealing

Airtight Walls—Housewrap and Sheathing as an Air Barrier

A tight air barrier is the best way to build an energy-efficient house. Outside the sheathing are many chances to make it better.

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Details // Framing, HVAC & Mechanicals, Insulation & Air Sealing

Airtight Dropped Soffit for Ducts, Fans, or Can Lights

Keep mechanical equipment within the envelope to improve the quality of houses and homes

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Details // WRB & Flashing, Windows & Doors, Insulation & Air Sealing

Outie Window Details for Walls with Thick Exterior Insulation

A thermal break and solid backing puts the window on the outer face of a thick wall. Now, there's room on the inside window sill for cats and bowling trophies  

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Details // Concrete & Masonry, Roofing, WRB & Flashing

Step Flashing 2 Brick: Its Complicated

Flashing must extend all the way from the wall to the outside. Oh yeah, and it has to be watertight and eight people have to work on it...  

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Details // WRB & Flashing, Windows & Doors

Window and WRB: Integration Keeps Water Out of Walls

Sealing the layers—and overlapping them right—is how high performance building gets done

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Details // Roofing, WRB & Flashing

Dormer Flashing Details in 4D

Concentrate on the corners and think like water when overlapping the layers  

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Details // Roofing, WRB & Flashing

How to Flash an Open Valley with W-Type Valley Metal

Roof valleys are like gutters with a steep pitch; but the stakes are higher for valleys than they are for gutters  

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Details // Concrete & Masonry, Insulation & Air Sealing, Drywall, Tile & Flooring

How to Insulate Old Masonry Buildings Without Causing Water Problems

Letting the brick dry evenly is the key for old masonry walls that want to leak less energy

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Details // Concrete & Masonry, WRB & Flashing, Insulation & Air Sealing

Warm and Dry Monolithic Slab with Brick Ledge

Adding brick to the outside of a house complicates insulating outside a slab. So Insulate inside.

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Details // Roofing, WRB & Flashing

Two Ways to Flash Roof Edges

Protect the eave from ice dams and sideways rain

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Details // Concrete & Masonry, Insulation & Air Sealing

Frost-Protected Monolithic Slab

An affordable insulated slab foundation suitable for climate zones 4, 5, and 6