Skip to main content
EERE » BTO » Building America » Solution Center Home » BASC Search

BASC Search

Showing results 1 - 100 of 100

Install rigid insulation and finish material below the framing and cavity insulation of a building overhang

Install rigid insulation and finish material below the framing and cavity insulation of a building overhang

Publication Date
Image

Insulating Existing Floor Overhang

Guide describing how to upgrade a wall with a floor overhang (or cantilever) on an existing home by adding insulation (rigid insulating sheathing and/or closed-cell spray foam) and air-sealing.
Guide

Insulating Existing Floors over Garage

Guide with information about how to upgrade a garage ceiling when a portion of the interior of the house is located directly above the attached garage by adding insulation and air sealing.
Guide
The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation

The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation

Publication Date
Image
Cantilever floor with insulation and air blocking

Cantilever floor with insulation and air blocking

Publication Date
Image

Sealing and Insulating Existing Floors above Unconditioned Spaces - Code Compliance Brief

Publication Date
From a model code perspective, submittal of construction documentation, permitting, plan review, and field inspection may be required depending upon the specific details of renovating the floor above an unconditioned space (e.g., floor over a vented crawl space). Several different approaches can be taken to seal and insulate existing floors during a renovation project.
Code Compliance Brief
The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.

The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.

Publication Date
Image
The ceiling over an unconditioned space is insulated with closed-cell spray foam that fills the ceiling cavities and encapsulates the framing

The ceiling over an unconditioned space is insulated with closed-cell spray foam that fills the ceiling cavities and encapsulates the framing

Publication Date
Image
Adding air-sealing and rigid foam insulation at the wall-to-overhanging floor juncture at the outside corner of an existing home

Adding air-sealing and rigid foam insulation at the wall-to-overhanging floor juncture at the outside corner of an existing home

Publication Date
Image
Right - The existing basement slab is retrofitted by installing a dimple plastic drainage mat, rigid foam insulation, and a floating subfloor.

Right - The existing basement slab is retrofitted by installing a dimple plastic drainage mat, rigid foam insulation, and a floating subfloor.

Publication Date
Image
Retrofit of cantilevered wall showing details at the inside corner for installing air sealing and rigid foam insulation in the wall and overhanging floor

Retrofit of cantilevered wall showing details at the inside corner for installing air sealing and rigid foam insulation in the wall and overhanging floor

Publication Date
Image
Retrofit of cantilevered wall with beam showing details at the outside corner for installing air sealing and rigid foam insulation in the wall and overhanging floor

Retrofit of cantilevered wall with beam showing details at the outside corner for installing air sealing and rigid foam insulation in the wall and overhanging floor

Publication Date
Image
Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall

Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall

Publication Date
Image
Air-seal the floor above a garage when there is living space above the garage and make sure floor insulation is in full contact with the underside of the subfloor.

Air-seal the floor above a garage when there is living space above the garage and make sure floor insulation is in full contact with the underside of the subfloor.

Publication Date
Image
Retrofit of cantilevered wall showing details at the outside corner for installing air sealing and rigid foam insulation in the wall and closed-cell spray foam in the overhanging floor

Retrofit of cantilevered wall showing details at the outside corner for installing air sealing and rigid foam insulation in the wall and closed-cell spray foam in the overhanging floor

Image
Retrofit of cantilevered wall with beam showing details at the outside corner for installing air sealing and rigid foam insulation plus water control membrane in the wall and overhanging floor

Retrofit of cantilevered wall with beam showing details at the outside corner for installing air sealing and rigid foam insulation plus water control membrane in the wall and overhanging floor

Publication Date
Image

Floor Above Garage

Guide describing how to create an air barrier between the garage and the conditioned space above it to prohibit pollutants from entering a home's interior.
Guide

Wind Washing

Guide describing wind washing and how to prevent it.
Guide

Cantilevered Floor

Guide describing how to air-seal and insulate a cantilevered floor.
Guide

Slab Happy, BSI-059

Author(s)
Lstiburek Joseph W
Organization(s)
Building Science Corporation,
BSC
Publication Date
How hard can it be to insulate a flat sheet of concrete? I mean you only have three choices – on the top, on the bottom, or on the edge. OK, you might have some combination of the three as well.
Reference

Building Code Training - Residential Thermal Envelope - Air Sealing

Author(s)
Southface Energy Institute
Organization(s)
SEI
Publication Date
Presentation describing the Georgia State Minimum Standard Energy Code air barrier requirements, envelope concepts including air flow and thermal properties, and common missed insulation and air-sealing opportunities.
Presentation

Cantilevers, Technical Bulletin F2

Author(s)
Advanced Energy
Organization(s)
Advanced Energy
Publication Date
Information sheet containing images and descriptions of cantilevers.
Reference

Concrete Floor Problems, BSI-003

Author(s)
Lstiburek Joseph W
Organization(s)
Building Science Corporation,
BSC
Publication Date
Information guide describing issues with concrete floors, in multiple climate zones.
Reference
Retrofit of cantilevered foundation wall showing details at the inside corner for installing closed-cell spray foam in the wall and overhanging floor

Retrofit of cantilevered foundation wall showing details at the inside corner for installing closed-cell spray foam in the wall and overhanging floor

Publication Date
Image

Reduce Pest Intrusion

Guide describing ways builders can block off entry points and otherwise make homes inhospitable to all manner of pests.
Guide

Design and Retrofit for Flood Protection

Information guide describing constructed flood protection measures to minimize damage and increase structural resilience during a flood.
Information Guide