Aaron 3 Inch Colonial Exterior Window & Door Trim - profile | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - detail view | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - arched window surround | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - shown with a matching window sill | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - complete facade design with matching sill, middle band and cornice | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - profile | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - detail view | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - arched window surround | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - shown with a matching window sill | Mouldex Composites
Aaron 3 Inch Colonial Exterior Window & Door Trim - complete facade design with matching sill, middle band and cornice | Mouldex Composites

SKU: MX101

Aaron 3 Inch Colonial Exterior Window & Door Trim


$34.16 per 8' Length ($4.27/Ft)
Height: 3 inches
Depth: 1-7/8 inches
Bottom: 11/16 inches

The Aaron is a 3 inch Colonial-style exterior window trim and door trim, sized for classic proportions where wall space is tight.

From a square top edge, the profile rolls into a rounded shoulder, then drops through two small steps to an 11/16 inch base. Its 1-7/8 inch projection adds real shadow around the opening without overpowering a smaller facade.

Wood casing rots and PVC moves with every temperature swing, opening gaps at the joints. The Aaron's cement coated foamcore does neither, and it bonds to stucco, EIFS, brick, stone veneer and ICF. Arches and circles can be factory-shaped.

Order FREE Sample Kit

Placing a full order? Use Live Chat on bottom right.

Material Summary

  • Core: Lightweight EPS foam core (ASTM C578 Type I)
  • Reinforcement: Alkali-resistant fiberglass mesh
  • Finish: Polymer-modified cementitious coating, approx. 3/16 in thick

Engineered for near-zero joint expansion and moisture-inert performance.

Technical Specifications +

Profile: 3 inches high, 1-7/8 inches top depth, 11/16 inches bottom depth.

Core Material: EPS foam core (ASTM C578 Type I) with a polymer-modified cementitious coating, approx. 3/16 in thick, reinforced with alkali-resistant fiberglass mesh.

Moisture & Movement: Moisture-inert core that won't rot; near-zero joint expansion; designed for freeze-thaw exposure.

Weight: A fraction of the weight of precast concrete. Standard lengths can be installed by one person, with no heavy wall reinforcement or lifting equipment.

Installation: Exterior adhesive, with mechanical fasteners where the Mouldex installation guidelines require. For stucco, EIFS, brick, stone veneer, siding and ICF.

Finishing: Arrives in a uniform cement-gray finish. Prime, then paint with a quality exterior acrylic latex paint or texture.

Fire: Fire-rated options are available on request with a Class A fire rating (flame spread 25, smoke developed 110) that helps meet ASTM E-84 and UL 263.

Customization: CNC-cut to custom profiles, arches and ellipticals, typically within 7 to 10 business days of design approval.

Watch our Feature on The Discovery Channel

Watch Installation Video


Exterior Moldings Summary

Inorganic composition icon

Inorganic Composition

Moisture-inert. Won't rot or warp, and less susceptible to cracking.

Versatile compatibility icon

Versatile Compatibility

Expertly bonds to Brick, Stone, Stucco, Vinyl, and ICF.

Bespoke customization icon

Bespoke Customization

Custom profiles, including arches and curves.

Unmatched finish icon

Unmatched Finish

Mimics smooth-sanded wood or textured masonry with ease.

Lifetime stability icon

Lifetime Stability

Dimensionally stable through freeze-thaw and seasonal swings.

Weight efficiency icon

Weight Efficiency

A fraction of the weight of stone. Usually no structural upgrades needed.

EXTERIOR PERFORMANCE COMPARISON

Attribute Mouldex Exterior Mouldings Pre-Cast Concrete Wood PVC / Polyurethane
WeightUltra-Light (a fraction of the weight of precast)Extremely HeavyModerateLight
DurabilityPolymer-Cement (Impact Resistant)Masonry (Brittle)Prone to Rot/WarpHigh Expansion
Installation1-Person / No CranesCrane / Structural TiesSkilled CarpentryStandard Mechanical
MaintenancePrimed & Painted; Low UpkeepPatching / Re-sealingPainting / StainingFading / Chalking

Additional Comparison: Foam Core vs Cement Coated Moldings

Complete Exterior Moulding System Line

Our exterior mouldings are made to stand up to outdoor conditions while adding detail and protection to building facades, as a lightweight alternative to traditional exterior moulding materials such as precast concrete, wood, MDF and PVC. From window trim and door trim to window sills and crown and cornice mouldings, every profile shares the same moisture-inert core, near-zero joint expansion and low-maintenance finish.

Ready? We are.

Request a quote. Order a free sample kit. Or call/live chat with us about your project.

+1 (905) 660-6338 1 (888) MOULDEX
Live chat with Davide on the bottom right.