Commercial Insulation Services
Spray Applied Insulation in Denver, Colorado
Commercial-grade spray-applied insulation for thermal performance, acoustic control, and condensation prevention. We install K-13 and Monoglass products — not residential spray foam — for warehouses, schools, airports, and commercial buildings across the Colorado Front Range.
What Is Spray Applied Insulation?
Spray-applied insulation is a category of commercial insulation products that are sprayed directly onto building surfaces — walls, ceilings, metal decking, and structural elements. Unlike residential spray foam insulation, these are fiber-based materials engineered for large-scale commercial, institutional, and industrial buildings.
The two most widely specified products in this category are K-13 and Monoglass. Both are sprayed on-site using specialized equipment, bonding directly to the substrate to create a seamless insulation layer with no gaps, joints, or fasteners. This is fundamentally different from closed-cell or open-cell spray polyurethane foam (SPF), which is a chemical foam product used primarily in residential construction.
Spray-applied insulation products serve three functions simultaneously: thermal insulation to reduce heat transfer, acoustic absorption to control noise and echo, and condensation control to prevent moisture buildup on metal surfaces. This combination makes them the preferred insulation solution for commercial spaces where performance, durability, and cost-efficiency all matter.
Important distinction
If you are looking for residential spray foam insulation for your home, that is a different product and service. Andrex Insulation specializes in commercial spray-applied insulation (K-13 and Monoglass) for commercial construction projects. We do not install residential spray foam.
Products We Install
We are trained and experienced applicators of the two leading spray-applied insulation products in commercial construction.
K-13
The most widely specified spray-applied cellulose insulation
K-13 is a spray-applied cellulose insulation made from recycled natural fibers and a water-based adhesive. It is sprayed directly onto surfaces where it bonds to form a monolithic, textured finish. K-13 has been used on thousands of commercial projects worldwide and remains the most specified product in its category.
- NRC ratings from 0.50 to 1.15 — excellent sound absorption
- Available in 30+ standard colors and custom color matching
- Class A fire rating (ASTM E84) — flame spread 5, smoke developed 5
- Thermal values up to R-36 with the mechanically-supported High-R System
- Contains no formaldehyde, asbestos, or CFCs
- Ideal for exposed applications where aesthetics matter
Monoglass
Spray-applied fiberglass insulation for superior thermal performance
Monoglass is a spray-applied fiberglass insulation that delivers outstanding thermal and acoustic performance with a clean, white appearance. It is sprayed directly onto metal decking, concrete, masonry, and other substrates, creating a uniform insulation layer that can be left exposed as a finished surface.
- Superior thermal performance — higher R-value per inch than K-13
- Excellent acoustic absorption for noise and echo reduction
- Clean white finish — professional appearance for exposed ceilings
- Noncombustible — meets ASTM E136 for noncombustibility
- No settling, sagging, or delamination over time
- Ideal for exposed ceiling applications in commercial spaces
Benefits of Spray Applied Insulation
Acoustic Performance
Dramatically reduces echo and noise transmission in large open spaces. K-13 achieves NRC ratings up to 1.05, making it one of the most effective acoustic solutions for warehouses, gymnasiums, airports, and restaurants.
Thermal Insulation
Reduces heat loss in winter and heat gain in summer, lowering energy costs for building owners. Seamless application eliminates gaps and thermal bridging that occur with board or batt insulation.
Condensation Control
Prevents moisture buildup on metal decking and cold surfaces. This is critical in warehouses, parking structures, and mechanical rooms where condensation causes corrosion, water damage, and safety hazards.
Cost-Effective
One spray application provides thermal insulation, acoustic absorption, and condensation control simultaneously. This eliminates the need for separate products and multiple trades, reducing material and labor costs.
Fast Application
Spray application covers large areas significantly faster than installing board or batt insulation. This means less time on the job site, fewer disruptions, and faster project completion for general contractors.
Aesthetic Finish
Both K-13 and Monoglass provide a clean, professional appearance that can be left exposed without additional finishing. K-13 is available in 30+ colors, and Monoglass offers a bright white finish for modern commercial interiors.
Where Spray Applied Insulation Is Used
Spray-applied insulation is specified across a wide range of commercial building types where thermal performance, noise control, or condensation prevention is required.
Warehouses & Distribution Centers
Condensation control on metal decking and thermal regulation for temperature-sensitive operations.
Schools & Gymnasiums
Acoustic absorption to reduce echo and noise levels in large open spaces. Durable enough for high-traffic environments.
Restaurants & Retail
Sound attenuation and thermal comfort in open-ceiling designs. Available in colors that complement interior finishes.
Parking Structures
Condensation control on underside of concrete decks above conditioned spaces. Prevents water dripping and corrosion.
Mechanical Rooms
Thermal insulation and noise reduction around HVAC equipment. Conforms to pipes, ducts, and irregular surfaces.
Indoor Pools & Recreation
Moisture-resistant insulation for high-humidity environments. Prevents condensation on metal structures above pool areas.
Airports & Transit Stations
Large-area acoustic treatment for passenger comfort. Reduces reverberation in terminals and concourses.
Houses of Worship
Acoustic performance for speech intelligibility and musical clarity. Available in colors to match interior design.
Our Spray Insulation Process
Every spray-applied insulation project follows a structured process to ensure the correct product is selected, properly applied, and verified to meet the specified thermal and acoustic performance requirements.
Plan Review & Specification Analysis
We review the architectural and mechanical drawings to identify insulation specifications, required R-values, NRC ratings, and thickness requirements. If specifications are open, we recommend the appropriate product based on project requirements.
Product Selection
Based on the performance requirements, we determine whether K-13, Monoglass, or a combination is the right solution. Factors include thermal R-value targets, acoustic NRC requirements, color and finish preferences, and environmental conditions.
Surface Preparation
The substrate must be clean, dry, and free of dust, oil, and loose material for proper adhesion. We coordinate with the general contractor to ensure surfaces are ready before our crews mobilize. Metal decking, concrete, masonry, and drywall are all acceptable substrates.
Spray Application
Our trained crews apply the insulation using specialized spray equipment. The material is applied in layers to achieve the specified thickness. Application rates allow us to cover large areas efficiently, keeping the project on schedule.
Thickness Verification
After application, we verify insulation thickness across the entire area using calibrated measurement tools. Every zone is checked to ensure it meets or exceeds the specified thickness for the required thermal and acoustic performance.
Cleanup & Closeout
We clean the work area and remove all equipment and overspray. Documentation is provided for project records, including product data sheets, thickness measurements, and applicable test reports.
Why Choose Andrex for Spray Insulation
Andrex Insulation has been installing spray-applied insulation products in Colorado for 38 years. We are not a general insulation company that does a little bit of everything — we specialize in commercial spray-applied products and understand the performance requirements that architects and engineers specify.
38 Years of Spray Insulation Experience
We have been applying K-13 and Monoglass products since the early days of spray-applied insulation in commercial construction. Our crews know these products inside and out.
Trained Application Crews
Spray-applied insulation requires skill and experience to achieve uniform thickness, proper adhesion, and a clean finish. Our crews are trained specifically for K-13 and Monoglass applications.
Acoustic & Thermal Expertise
We understand the performance specifications that drive product selection. Whether the project requires a specific NRC rating, R-value, or condensation control, we can recommend and deliver the right solution.
BBB A+ Rated, EMR Below 1.0
Our safety record and business practices meet the highest standards. General contractors trust us to perform on their job sites without safety incidents or quality issues.
Full Building Protection Under One Contract
Andrex also provides spray-applied fireproofing, intumescent coatings, and firestopping. Combining insulation with fireproofing under one subcontract simplifies coordination and reduces costs.
Not Sure Which Insulation Product Is Right?
Choosing between K-13, Monoglass, and other insulation solutions depends on the specific performance requirements of your project. Here is a general guide to help you understand when each product is typically specified.
| Requirement | K-13 | Monoglass |
|---|---|---|
| Primary need is acoustic control | Best choice | Good |
| Primary need is thermal performance | Good | Best choice |
| Color options needed | 30+ colors | White only |
| Noncombustible required | Class A rated | ASTM E136 noncombustible |
| Exposed ceiling aesthetic | Textured finish | Smooth white finish |
| Condensation control | Yes | Yes |
| High-humidity environments | Consult Andrex | Recommended |
Every project is different, and there are often factors beyond this table that influence product selection — budget, schedule, existing conditions, and architect preferences all play a role. Andrex can review your project specifications and recommend the best solution. If the specs are open, we will walk you through the options so you can make an informed decision.
Spray Insulation Service Area
Andrex Insulation provides spray-applied insulation services throughout Colorado and Wyoming. Our primary service area includes the Colorado Front Range corridor, and we regularly travel for larger commercial projects across the region.
Frequently Asked Questions
What is spray-applied insulation?
Spray-applied insulation is a commercial-grade insulation product that is sprayed directly onto walls, ceilings, and metal decking in commercial buildings. Products like K-13 and Monoglass provide thermal insulation, acoustic absorption, and condensation control in a single application. Unlike batt or board insulation, spray-applied products conform to irregular surfaces and provide seamless coverage with no gaps or joints.
Is this the same as spray foam insulation?
No. Spray-applied insulation products like K-13 and Monoglass are fiber-based insulation materials designed for commercial buildings. They are not closed-cell or open-cell spray polyurethane foam (SPF). Spray foam is typically used in residential wall cavities and rooflines, while K-13 and Monoglass are spray-applied directly to exposed surfaces like metal decking, concrete ceilings, and walls in warehouses, schools, and commercial spaces.
What is the difference between K-13 and Monoglass?
K-13 is a spray-applied cellulose insulation product available in multiple colors and textures, known for its excellent acoustic performance with NRC ratings up to 1.05. Monoglass is a spray-applied fiberglass insulation that provides superior thermal performance with a clean, white finish. Both products offer thermal insulation, acoustic absorption, and condensation control. The choice depends on project requirements for aesthetics, thermal R-value, and acoustic performance.
What NRC rating can spray-applied insulation achieve?
K-13 spray-applied insulation can achieve NRC (Noise Reduction Coefficient) ratings from 0.50 to 1.15 depending on thickness. An NRC of 1.0 means the material absorbs virtually all sound that strikes it. This makes K-13 one of the most effective acoustic insulation solutions for open commercial spaces like gymnasiums, airports, warehouses, and restaurants where echo and noise control are critical.
Can spray-applied insulation be applied to existing buildings?
Yes. Spray-applied insulation is well-suited for retrofit and renovation projects. It can be applied directly over existing surfaces including metal decking, concrete, masonry, and drywall. This makes it an excellent solution for improving thermal and acoustic performance in older buildings without major construction or demolition.
What colors are available for spray-applied insulation?
K-13 is available in over 30 standard colors, making it a versatile choice for exposed applications where aesthetics matter. Custom colors can also be matched. Monoglass is available in a clean white finish that works well in spaces where a bright, professional appearance is desired. Both products can be left exposed as a finished ceiling or wall treatment.
Do you serve projects outside Denver?
Yes. While our office is based in Denver, we serve commercial construction projects throughout the Colorado Front Range including Colorado Springs, Boulder, Fort Collins, and Aurora. We also regularly take on projects in Wyoming. Contact us with your project location and we will confirm availability.
Ready to Get a Bid?
Send us your plans and specifications. We will review your insulation requirements and provide a competitive bid with fast turnaround.
Our Other Services
Andrex provides complete building protection — fireproofing, firestopping, and insulation under one contract.
Spray Applied Fireproofing
SFRM fireproofing for structural steel. UL-classified products like BlazeShield II for 1-4 hour fire ratings. The backbone of commercial fire protection.
Learn moreIntumescent Fireproofing
Thin-film coatings that expand under heat to protect exposed structural steel. Architectural finish for lobbies, atriums, and spaces where steel is visible.
Learn moreFirestopping
Sealing penetrations through fire-rated walls and floors. Tested and listed systems for pipes, cables, ducts, and joints. Inspection-ready documentation.
Learn more