What does R-value mean?

An insulation's R-value reflects how much it resists heat conduction. A higher R-value means the material resists heat flow better and offers greater insulating performance. We provide quality insulation with high R-values and impressive thermal performance.

What are the R-values of common insulation types?

Fiberglass batts range from R-3.8 to R-4.3 per inch of thickness, while loose or sprayed fiberglass offers R-values of 2.3 to 3.8. Cellulose insulation offers R-values of 3.1 to 3.8 per inch and mineral wool ranges from R-3.3 to R-4.2 per inch. Rigid foam boards range from R-2.3 to R-8.0 per inch, depending on type, while spray foam insulation ranges from R-4.6 to R-6.5. Talk to our team to learn how much total insulation you need in each area of your building.

Why use mineral wool instead of fiberglass batts?

Mineral wool is made from spun rock fibers and metal slag, so it naturally resists fire, pests, mold and moisture. This makes it excellent for firestopping in select locations of a commercial building and for standard insulation purposes. It is a bit more costly than fiberglass, but the extra benefits can offset the cost. We can recommend the best insulation for each area of your commercial building.

What are the advantages of fiberglass batts?

Fiberglass batts are cost-effective for use in exterior walls, ceilings, interior walls, floors and more. They're available in pre-cut sizes to fit snugly between metal studs, joists and rafters, and they offer good thermal performance and air sealing when properly installed. They are also ideal for reducing sound transmission when used in interior walls. Talk to our team to learn where fiberglass batts should be used.

How long does insulation last?

Most insulation products will last the lifetime of the building unless they are damaged due to renovations, water intrusion, mold, pests or other external forces. We offer top-quality insulation products and re-insulation services when old or damaged insulation needs to be replaced.

What does R-value mean?

An insulation’s R-value reflects how much it resists heat conduction. A higher R-value means the material resists the flow of heat better and offers greater insulating performance. At Alpha, we provide quality insulation with high R-values and impressive thermal performance.

What are the R-values of common insulation types?

Fiberglass batts range from R-3.8 to R-4.3 per inch of thickness, while loose or sprayed fiberglass offers R-values of 2.3 to 3.8. Cellulose insulation offers R-values of 3.1 to 3.8 per inch and mineral wool ranges from R-3.3 to R-4.2 per inch. Rigid foam boards range from R-2.3 to R-8.0 per inch, depending on type, while spray foam insulation ranges from R-4.6 to R-6.5.

Why use mineral wool instead of fiberglass batts?

Mineral wool is made from spun rock fibers and metal slag, so it naturally resists fire, pests, mold and moisture. This makes it excellent for firestopping in select locations of a commercial building and for standard insulation purposes. It is a bit more costly than fiberglass, but the extra benefits can offset the cost. At Alpha, we can recommend the best insulation for each area of your commercial building.

What are the advantages of fiberglass batts?

Fiberglass batts are cost-effective for use in exterior walls, ceilings, interior walls, floors and more. They are available in pre-cut sizes to fit snugly between metal studs, joists and rafters, and they offer good thermal performance and air sealing when properly installed. They are also ideal for reducing sound transmission when used in interior walls. To learn where fiberglass bats should be used, talk to our team at Alpha.

How long does insulation last?

Most insulation products will last the lifetime of the building unless they are damaged due to renovations, water intrusion, mold, pests or other external forces. At Alpha, we offer top-quality insulation products and re-insulation services when old or damaged insulation needs to be replaced.

High-Quality Insulation Services | Commercial Contractors

Top-Rated Insulation Services Nationwide

Nationwide Reach. Local Expertise. Proven Performance.

Since 1982, Alpha Insulation & Waterproofing has delivered expert insulation solutions for commercial, industrial, and high-rise projects across the U.S. Backed by the national strength of Installed Building Products (IBP)—the second-largest insulation provider in the country—we bring unmatched supply chain access, pricing power, and project reliability to every job site.

From stadiums and hospitals to multifamily towers and manufacturing plants, we’ve earned the trust of developers who demand performance, speed, and consistency.

Why Insulation Matters in Commercial Construction

Whether you’re building in Phoenix or Philadelphia, insulation is critical to:

Improve energy efficiency and reduce operating costs

Enhance occupant comfort and sound control

Meet code requirements and sustainability goals

Protect against moisture, mold, and fire risks

We support both new construction and retrofit insulation projects, because it’s never too late to reduce energy loss and improve building performance.

Types of Insulation We Install

Insulation Type	Description	Best For
Batt/Blanket	Fiberglass or mineral wool between metal studs; R-11 to R-38	Exterior/interior walls, sound control
Semi-Rigid	High-density fiberglass or mineral wool	Behind spandrel glass, curtain walls
Rigid Board	Polystyrene or polyiso boards	Concrete block walls, cold storage
Spray-Applied	Cellulose or fiberglass spray	Acoustical performance, hard-to-reach areas
Metal Building Insulation	Naima 202-96 certified with vapor barrier	Warehouses, industrial buildings
K-13 Spray	Recycled cellulose, exposed finish, multiple colors	Open ceilings, design-forward spaces
Safing Insulation	Mineral wool with UL fire ratings	Floor slabs, wall headers, firestopping

Insulation Type

Description

Best For

Batt/Blanket

Fiberglass or mineral wool between metal studs; R-11 to R-38

Exterior/interior walls, sound control

Semi-Rigid

High-density fiberglass or mineral wool

Behind spandrel glass, curtain walls

Rigid Board

Polystyrene or polyiso boards

Concrete block walls, cold storage

Spray-Applied

Cellulose or fiberglass spray

Acoustical performance, hard-to-reach areas

Metal Building Insulation

Naima 202-96 certified with vapor barrier

Warehouses, industrial buildings

K-13 Spray

Recycled cellulose, exposed finish, multiple colors

Open ceilings, design-forward spaces

Safing Insulation

Mineral wool with UL fire ratings

Floor slabs, wall headers, firestopping

Ready to Build Smarter?

Let’s talk about your next project.
Call 972-446-2600 or contact us online to connect with your local Alpha team.

Alpha Insulation & Waterproofing Offers Insulation Services in the Following Locations:

Client Testimonials

Alpha is performing well on the UT Scaffold Center project. Alpha’s personnel assigned to the project have been respectful of others and have executed their work plan safely. The completed waterproofing of the existing grade walls, elevator pit, and dock leveler were coordinated closely with grading and concrete trade partners. These installations met project schedule, budget, and quality objectives.

Toby Lilliston, DPR Construction

It is my pleasure to recommend Alpha Insulation & Waterproofing, Inc. as a preferred contractor for the City of Milwaukee, Wisconsin…I am pleased to say that they are part of our desired team of contractors that make our projects a success.

Ryan Schulze, City of Milwaukee

Alpha is a hands on company that has the knowledge and vision to deliver a quality product to the customer. What impressed us the most about Alpha was their follow up; they truly care about their scope. They want to be the best and it showed at the end of the day.

Aaron Burns, Crossland Construction Company

I had the great fortune of working with Alpha on a recent TDADS (Health and Human Services) project. Alpha played a pivotal role in the project passing on the first inspection. Their problem solving and timely issue resolution proved to be immeasurable. We thank Alpha for the tremendous job they did for us and for really making us look good to the client.

J.P. Waller, The Beck Group

BVDA

Commercial & Industrial Insulation Services