The name GP² reflects the two primary technologies within the system: Glass-Reinforced Polymer and Graphite-Infused Polystyrene. Each component performs a different job. The reinforced polymer forms the visible, weather-exposed face of the cladding, while the graphite-infused foam supports the panel from behind and adds insulating value.

What Does GP² Stand For?

GP² is ASCEND’s name for the combination of Glass-Reinforced Polymer and Graphite-Infused Polystyrene. It is not one single ingredient. It is a coordinated composite system in which the exterior shell and insulated backing work together.

How Do the Glass Fibers Strengthen the Panel?

Glass fibers are integrated into the polymer compound to reinforce the exterior face. The fibers help increase structural stability and dimensional strength across the panel’s exposure.

This reinforcement helps ASCEND maintain a substantial profile while remaining lighter and easier to handle than many cement-based exterior products. It also contributes to the solid, rigid feel contractors and homeowners notice after installation.

How Does the Graphite-Infused Foam Work?

The graphite-infused polystyrene backing provides continuous insulating value behind the composite exterior. Graphite particles within the foam help reduce heat transfer, allowing the system to deliver meaningful thermal resistance without requiring an excessively thick profile.

ASCEND publishes thermal performance of up to R-2.0, depending on the selected profile. The foam can also help reduce thermal bridging through wall framing when the product is installed as part of a properly designed exterior wall assembly.

Does the Foam Add More Than Insulation?

Yes. The insulated backing also supports the exterior face, helping the cladding feel more solid against the wall. This support can contribute to a straighter finished appearance and help the product conceal minor wall imperfections.

It should not be treated as a wall-leveling material, however. Rotten sheathing, structural movement, major bows, active moisture problems, and unsuitable fastening surfaces must still be corrected before installation.

How Does GP² Technology Help Resist UV Exposure?

ASCEND’s polymer formulation includes titanium dioxide, which the manufacturer identifies as protection against ultraviolet degradation. The compound also uses integral weatherable pigments rather than relying on a field-applied paint finish.

These components are designed to help the cladding retain its appearance through prolonged exterior exposure, including on deeper and darker colors.

How Does GP² Technology Handle Impact?

ASCEND’s compound includes impact modifiers designed to improve resistance to everyday dents and dings. The glass-fiber reinforcement and supported panel construction also contribute to the system’s overall toughness.

This does not mean ASCEND is indestructible or guaranteed against every impact. Severe hail, flying debris, vehicles, construction equipment, and other high-energy impacts can still damage exterior cladding.

How Does GP² Technology Respond to Moisture?

The materials used in ASCEND do not absorb moisture the way natural wood can. According to the manufacturer, this helps prevent rotting, warping, shrinking, and swelling associated with moisture-sensitive exterior products.

That does not eliminate the need for proper water management. ASCEND must still be installed over a code-compliant weather-resistant barrier with correct flashing around windows, doors, rooflines, penetrations, and material transitions.

How Does GP² Technology Affect Fire Performance?

ASCEND’s formulation includes flame-retardant components. The manufacturer reports a Class A fire rating for flame spread and smoke development based on its applicable testing.

A Class A rating does not mean the product is fireproof. Contractors must still follow applicable building codes, approved wall-assembly requirements, clearance rules, and project specifications.

How Does GP² Technology Support Wind Performance?

Material strength is only one part of wind performance. ASCEND combines its reinforced composite construction with installation features such as a reinforced nail hem and engineered panel-lock systems.

The glass-reinforced material, fastening system, starter components, panel engagement, wall substrate, and installation quality must all work together. A premium panel installed incorrectly will not deliver its intended wind-load performance.

How Is GP² Different From Insulated Vinyl Siding?

Insulated vinyl siding generally combines a PVC exterior panel with foam backing. ASCEND instead uses a glass-reinforced polymer exterior combined with graphite-infused polystyrene.

Is GP² Technology One Layer or Two?

It is best understood as an integrated system with two primary engineered components. The glass-reinforced polymer forms the weather-exposed exterior, while the graphite-infused polystyrene forms the insulated backing.

Contractors should avoid describing GP² as simply a coating or a type of foam. Its performance comes from the way the reinforced exterior compound, insulation, panel geometry, fastening area, and locking system work together.

Does GP² Technology Eliminate the Need for Proper Installation?

No. GP² Technology gives the product its material properties, but the wall system still depends on proper installation. Incorrect fastening, missing clearances, poor flashing, an unsuitable substrate, or incomplete panel engagement can reduce performance and affect warranty coverage.

1. Inspect and prepare the substrate.
2. Install a code-compliant weather-resistant barrier.
3. Flash openings and transitions correctly.
4. Use the required fasteners and spacing.
5. Maintain profile-specific clearances.
6. Fully engage every panel lock.
7. Use compatible trim and accessories.
8. Follow the current ASCEND installation guide.

How Should Contractors Explain GP² Technology?

Contractors should avoid turning GP² into vague marketing language. The strongest explanation is specific: ASCEND combines a reinforced composite exterior with graphite-enhanced insulation, and each element supports a different part of the product’s performance.

The Bottom Line

ASCEND’s GP² Technology combines Glass-Reinforced Polymer with Graphite-Infused Polystyrene. Glass fibers add strength and stability, titanium dioxide helps protect against UV degradation, impact modifiers help resist dents and dings, weatherable pigments support color retention, and non-moisture-absorbing materials help resist rot and dimensional changes.

Behind the exterior face, graphite-infused insulation adds thermal resistance, supports the panel, and helps reduce thermal bridging. Working together, these technologies give ASCEND its distinctive combination of appearance, durability, insulation, moisture resistance, and jobsite efficiency.