BASC Search | Building America Solution Center

Windows and Doors are Fully Flashed

Guide describing how to install flashings to help direct water down and out of windows and doors openings in exterior walls.

Right – A flexible flashing product is installed around the corners of the window sill before installing the windows.

Publication Date

Mon, 09/30/2019 - 12:00

Right - Corners of window are protected with draining house wrap that laps onto the sides of the window trim, paint-on flashing at window trim corners, and self-adhered flashing to reinforce corners.

Publication Date

Fri, 08/14/2020 - 12:00

Wrong – There is no flashing installed at the top of the window

Publication Date

Tue, 02/01/2011 - 12:00

Window and door openings fully flashed

Publication Date

Tue, 02/01/2011 - 12:00

Fully Flashed Window and Door Openings (2)

Publication Date

September, 2015

Video describing how to fully flash window and door openings.

Fully Flashed Window and Door Openings (1)

Publication Date

July, 2015

Video describing how to properly flash window and door openings.

Formable pan flashing and back dam for window

Publication Date

Fri, 05/01/2009 - 12:00

Wrong – There is no flashing installed along the sides of the window

Publication Date

Tue, 02/01/2011 - 12:00

Wrong - House wrap tape is not fully adhered at seam and flashing tape is missing from window head, jamb, and corner above window.

Publication Date

Sat, 03/06/2021 - 12:00

Installing Windows with Foam Sheathing on a Wood-Frame Wall

Author(s)

Building Science Corporation,

National Renewable Energy Laboratory

Organization(s)

BSC,

NREL

Publication Date

May, 2005

Report with guidance for installing windows with foam sheathing on wood-frame walls.

Window flashing is overlapped to provide a continuous drainage plane.

Publication Date

Thu, 09/01/2011 - 12:00

Wrong - Tape flashing is missing around window frame.

Publication Date

Wed, 07/07/2021 - 12:00

Right – Windows are installed and flashed in the factory for these modular homes.

Publication Date

Thu, 09/30/2021 - 12:00

Wrong - Pan flashing is poorly adhered on all 4 windows.

Publication Date

Fri, 10/01/2021 - 12:00

Wrong - The window needs pan, head, and jamb flashing.

Publication Date

Fri, 10/01/2021 - 12:00

Wrong - Tape flashing around the window is poorly installed.

Publication Date

Mon, 01/25/2021 - 12:00

Before installing the windows, the window rough openings are sealed with a liquid-applied flashing that provides a seamless moisture and air barrier to protect the wall from water intrusion.

Publication Date

Sun, 01/01/2017 - 12:00

Tape flashing around windows helps to keep moisture out of the framed walls.

A paint-on flashing is used around the windows and doors for seamless water protection.

Publication Date

Wed, 06/01/2016 - 12:00

The tape window flashing here is integrated with the roller-applied weather-resistant barrier.

Wrong - There is no step flashing along the base of the gable and the right window is missing sill trim.

Publication Date

Sun, 05/30/2021 - 12:00

Wrong - Window is missing pan flashing under sill and tape flashing at jamb end sill.

Publication Date

Wed, 07/07/2021 - 12:00

The windows in this building are connected to the fully adhered water and air control layer using fluid-applied flashing

Publication Date

Mon, 08/05/2024 - 12:00

Wrong - House wrap was poorly installed, seams were not taped, and flashing tape was not installed around windows.

Publication Date

Sat, 03/06/2021 - 12:00

Wrong - Water has gotten behind the paint, possibly due to lack of window flashing, leading to blistering.

Publication Date

Mon, 06/14/2021 - 12:00

Wrong - The gutter is missing kick-out flashing causing wall and window damage beneath it.

Publication Date

Sat, 03/06/2021 - 12:00

Proper flashing around windows is especially important when the rigid foam serves as the drainage plane in the wall

Publication Date

Mon, 10/01/2007 - 12:00

Right – A metal flashing was installed behind the first row of siding above the windows to guide water over the trim.

Publication Date

Mon, 09/30/2019 - 12:00

Wrong - Stucco has rotted and cracked above a window because of water damage due to lack of proper flashing and drainage.

Publication Date

Tue, 11/12/2019 - 12:00

Right – There is flashing installed along the top of the window and the water-resistant barrier is layered over to create a complete drainage system

Publication Date

Tue, 02/01/2011 - 12:00

Windows are installed as “outies” in this wall assembly using a self-adhered membrane water and air control layer with continuous exterior insulation

Publication Date

Mon, 07/15/2024 - 12:00

Wrong - Wiring holes are not sealed and possible missing flashing around windows is allowing water into walls and causing paint to peel.

Publication Date

Sun, 05/30/2021 - 12:00

This drawing shows key sill details for a window installation using a fluid-applied flashing on a wall with a mechanically attached water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key head details for a window installation using a fluid-applied flashing on a wall with a mechanically attached water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key jamb details for a window installation using a fluid-applied flashing on a wall with a mechanically attached water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key head details for a window installation using a fluid-applied flashing on a wall with a fluid-applied water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key jamb details for a window installation using a fluid-applied flashing on a wall with a fluid-applied water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key sill details for a window installation using a fluid-applied flashing on a wall with a fluid-applied water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

A piece of siding is used as sill extension and to provide slope in the opening for the window, which is deeper because exterior rigid foam has been added

Publication Date

Mon, 02/20/2017 - 12:00

The fluid-applied asphalt coating provides a weather-resistant, moisture resistant layer around the house, serving as a continuous drainage plane and flashing for window and door openings.

This drawing shows key head details for a window installation using a fluid-applied flashing on a wall with a mechanically attached water and air control layer and continuous insulation

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key jamb details for a window installation using a fluid-applied flashing on a wall with a mechanically attached water and air control layer and continuous insulation

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key sill details for a window installation using a fluid-applied flashing on a wall with a mechanically attached water and air control layer and continuous insulation

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key head details for a window installation using a self-adhered membrane tape flashing on a wall with a mechanically attached water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key jamb details for a window installation using a self-adhered membrane tape flashing on a wall with a mechanically attached water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key sill details for a window installation using a self-adhered membrane tape flashing on a wall with a mechanically attached water and air control layer

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key head details for an “outie” window installation using a fluid-applied flashing on a wall with a fluid-applied water and air control layer and continuous insulation

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key sill details for an “outie” window installation using a fluid-applied flashing on a wall with a fluid-applied water and air control layer and continuous insulation

Publication Date

Mon, 07/15/2024 - 12:00

This drawing shows key jamb details for an “outie” window installation using a fluid-applied flashing on a wall with a fluid-applied water and air control layer and continuous insulation

Publication Date

Mon, 07/15/2024 - 12:00

A liquid-applied water barrier covers the walls, serving as a drainage plane, air and vapor barrier, and secondary window flashing beneath the rigid foam that will be installed next.

Publication Date

Wed, 01/01/2014 - 12:00

Right - Tape flashing keeps moisture out around and below the window; extra tape reinforces the corners to prevent tearing of the house wrap and to keep water out of this critical juncture.

Publication Date

Fri, 12/31/2021 - 12:00

Vinyl Siding with Integrated Rigid Foam for Existing Walls

Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.

Kick-Out Diverter Flashing Detail

DWG

PDF

CAD image for roof pipe penetration water and air sealing details

DWG

PDF

Wrong - House wrap and flashing tape are poorly installed allowing water to get into the gaps behind flashing tape.

Publication Date

Wed, 07/07/2021 - 12:00

Proper shingling of drainage plane materials

Publication Date

Thu, 11/01/2007 - 12:00

Right – Side flashing extends over the pan flashing

Publication Date

Tue, 02/01/2011 - 12:00

Wrong – The corners are not properly flashed, leaving a vulnerable area in the drainage system

Publication Date

Tue, 02/01/2011 - 12:00

Right – The flashing is properly installed to create a complete drainage system with continuous rigid insulation sheathing/siding

Publication Date

Tue, 02/01/2011 - 12:00

Taped Insulating Sheathing Drainage Planes

Guide describing techniques for installing insulating sheathing as a continuous drainage plane on walls.

Mastic Home Exteriors Installation Guide

Author(s)

Ply Gem Siding Group

Organization(s)

Ply Gem Siding Group

Publication Date

April, 2015

Siding installation guide for Ply Gem Siding Group products.

Existing Skylights Repaired or Replaced and Fully Flashed

Guide describing how to repair or replace skylights in existing homes.

Install self-adhesive sill flashing

Reference

Building America Best Practices Series - 40% Whole-House Energy Savings in the Cold and Very Cold Climates, Volume 12

Author(s)

Baechler Michael C,

Gilbride Theresa L,

Hefty Marye G,

Cole Pam C,

Love Pat M

Organization(s)

Pacific Northwest National Laboratory,

PNNL,

Oak Ridge National Laboratory,

ORNL,

U.S. Department of Energy,

DOE

Guide describing measures that builders in the cold and very cold climates can take to build homes that have whole-house energy savings of 40% over the Building America benchmark with no added overall costs for consumers.

Publication Date

Tue, 02/01/2011 - 12:00

New Whole-House Solutions Case Study: New Traditions Homes, Landover Commons, Vancouver, WA

Author(s)

Pacific Northwest National Laboratory

Organization(s)

PNNL

Publication Date

April, 2012

Case study describing energy efficient new home construction that also incorporated moisture management techniques for durability in the damp Northwest climate.