Fiberglass Insulation for General Contractors in Middle Tennessee

Complete Insulation provides fiberglass insulation installation for general contractors, builders and developers throughout Murfreesboro, Nashville and Middle Tennessee.

We install fiberglass batts and blown-in fiberglass in residential, commercial and multifamily construction. Our team follows the approved project scope, coordinates with other trades and schedules installation before inspections and close-in.

Complete insulation is licensed and insured (General Liability, Worker Compensation, Vehicle and Umbrella).

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Fiberglass Insulation for Construction Projects

Fiberglass insulation is a dependable and cost-effective option for many wood- and steel-framed building assemblies. It is available in several widths, thicknesses and R-values to accommodate different framing and performance requirements.

Fiberglass may be installed in:

  • Exterior walls

  • Interior partition walls

  • Open attics

  • Sloped ceilings

  • Floors between levels

  • Floors over unconditioned areas

  • Garage walls and ceilings

  • Bonus rooms

  • Knee walls

  • Rim and band areas

  • Commercial ceilings

  • Multifamily assemblies

The selected material should match the cavity depth, framing dimensions, specified R-value and vapor-control requirements.

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Insulation inside an attic with exposed wooden beams and ductwork.
Insulation inside an attic with exposed wooden beams and ductwork.

  • Fiberglass Batt Insulation

    Fiberglass batts are pre-cut sections installed between framing members. Complete Insulation provides faced and unfaced batt installation based on the approved wall, floor or ceiling assembly.

    Proper batt installation requires more than placing insulation inside a cavity. Batts should be fitted around electrical boxes, wiring, pipes, ductwork, blocking and other components without leaving significant gaps or compressing the material unnecessarily.

    Common batt applications include:

    • Wood-framed exterior walls

    • Steel-stud commercial walls

    • Floors and ceilings

    • Garage separation walls

    • Interior sound-control partitions

    • Multifamily walls

    • Residential additions

    • Tenant buildouts

  • Blown-In Fiberglass Insulation

    Blown-in fiberglass consists of loose fibers installed with specialized equipment. It can provide consistent coverage across large open areas and around irregular framing.

    Blown-in fiberglass is commonly used in:

    • Open residential attics

    • Multifamily attic areas

    • Commercial ceiling assemblies

    • Difficult-to-reach spaces

    • Renovation and retrofit projects

    • Areas requiring additional insulation coverage

    The material is installed to the specified depth and density needed to achieve the project’s required insulation level.

  • Faced and Unfaced Fiberglass Batts

    Faced fiberglass includes an attached facing, such as kraft paper, that may serve as a vapor retarder within an approved assembly. Unfaced batts do not include an attached vapor-retarding layer.

    The correct material depends on:

    • Project specifications

    • Wall or ceiling construction

    • Climate and moisture conditions

    • Assembly location

    • Existing vapor-control materials

    • Fire and building-code requirements

    Facings should not be added or omitted without considering the complete building assembly.

  • Fiberglass for Residential Construction

    Complete Insulation installs fiberglass insulation for custom homes, spec homes, townhouses, duplexes, additions and residential developments.

    Residential applications may include:

    • Exterior walls

    • Attics

    • Floors

    • Crawl spaces

    • Garage walls and ceilings

    • Bonus rooms

    • Interior sound-control walls

    • Home offices

    • Bedrooms and bathrooms

    • Laundry and mechanical rooms

    Fiberglass may be used throughout the home or combined with spray foam and stone wool in selected areas.

  • Fiberglass for Commercial Construction

    Commercial fiberglass insulation can be installed in steel-framed and wood-framed walls, ceilings and interior partitions.

    We work on offices, retail spaces, restaurants, medical facilities, hospitality properties, churches, mixed-use buildings and other commercial projects.

    Commercial applications may include:

    • Exterior framed walls

    • Tenant separation walls

    • Above-ceiling areas

    • Private offices

    • Conference rooms

    • Restrooms

    • Break rooms

    • Mechanical spaces

    • Interior sound-attenuation assemblies

  • Fiberglass for Multifamily Projects

    Fiberglass insulation can provide thermal and sound-control performance across apartment, condominium and townhome developments.

    Complete Insulation can coordinate installation by building, floor, unit group or released construction phase. Applications may include exterior walls, attic areas, floors, ceilings, interior partitions and shared assemblies.

    Project documents should clearly distinguish between thermal insulation, sound-control insulation and materials required within rated assemblies.

  • Fiberglass Sound-Attenuation Insulation

    Fiberglass batts installed in interior walls and ceilings can absorb sound and reduce noise transfer between occupied spaces.

    Common sound-attenuation locations include:

    • Bedrooms and bathrooms

    • Home offices

    • Laundry rooms

    • Multifamily units

    • Private commercial offices

    • Conference rooms

    • Medical examination rooms

    • Classrooms

    • Hotel rooms

    • Tenant separation walls

    Fiberglass insulation is only one part of a complete sound-control system. Drywall layers, framing, doors, penetrations and mechanical pathways also affect acoustic performance.

  • Fiberglass Installation and Site Readiness

    Fiberglass should be installed after required rough-in work is complete and before drywall or other materials close the cavities.

    Before installation, work areas should generally be:

    • Dried in and protected from weather

    • Free from active water leaks

    • Cleared of construction debris

    • Accessible to installers

    • Complete with required framing and blocking

    • Ready following electrical and plumbing rough-ins

    • Available without conflicting trade work

    • Free from wet or damaged building materials

    Incomplete framing, exposed cavities or later trade work may result in disturbed or damaged insulation.

  • Coordinating Fiberglass With Building Systems

    Fiberglass must be carefully fitted around electrical, plumbing, HVAC and structural components.

    Installation may require coordination around:

    • Electrical boxes and wiring

    • Plumbing supply and drain lines

    • Ductwork

    • Exhaust vents

    • Fire blocking

    • Structural bracing

    • Access panels

    • Recessed fixtures

    • Sprinkler components

    • Framing irregularities

    Fixtures and equipment requiring clearance should be identified before insulation begins.

Protecting Fiberglass After Installation

After fiberglass has been installed, other trades should avoid pulling, compressing or removing the material. Disturbed insulation can create gaps and reduce the intended performance of the assembly.

The general contractor should schedule inspections and drywall promptly when possible. Damaged or missing insulation should be reported before the wall or ceiling is closed.

Fiberglass Insulation FAQs for Contractors

What is the difference between batt and blown-in fiberglass?

Fiberglass batts are pre-cut sections installed between framing members. Blown-in fiberglass is loose material installed with specialized equipment, making it useful for open attics and irregular areas.

Can fiberglass insulation be installed in steel-stud walls?

Yes. Fiberglass batts are available for steel-framed commercial and multifamily wall assemblies. The batt width and thickness must match the framing and project requirements.

What is the difference between faced and unfaced fiberglass?

Faced fiberglass has an attached facing that may function as a vapor retarder. Unfaced fiberglass does not. Product selection depends on the specified building assembly.

Can fiberglass be used for sound attenuation?

Yes. Fiberglass batts can absorb sound within interior walls, floors and ceilings. They are commonly used around bedrooms, offices, conference rooms and multifamily units.

Can fiberglass and spray foam be used in the same building?

Yes. A project may use blown-in fiberglass in an attic, fiberglass batts in walls and spray foam at rim joists, rooflines or other designated areas.

When should fiberglass insulation be installed?

Fiberglass is generally installed after required electrical, plumbing and HVAC rough-ins are complete and before drywall. The building should be dried in before installation.

Can wet fiberglass remain in a wall cavity?

Wet insulation should be evaluated rather than immediately covered. The moisture source must be corrected, and affected materials should be properly dried or replaced before close-in.

Does compressing fiberglass affect its R-value?

Yes. Compressing fiberglass into a cavity smaller than its intended thickness can reduce its insulating performance.

Can fiberglass insulation cover recessed lights?

Only fixtures rated for insulation contact should be covered. Required clearances must be maintained around non-IC-rated fixtures and other heat-producing equipment.

Can fiberglass installation be completed in phases?

Yes. Residential developments, multifamily buildings and commercial projects may be scheduled by home, building, floor or released work zone.

Do you install fiberglass above suspended ceilings?

Yes, when it is included in the approved scope and appropriate for the ceiling assembly. Installation must be coordinated with ductwork, wiring, sprinklers and other overhead systems.

Can damaged fiberglass be repaired before drywall?

Yes. Missing, compressed or disturbed sections can be evaluated and corrected before the wall or ceiling assembly is closed.