Classical Polyurethane Pediment Header Model
Technical Specifications
| Material | Polyurethane |
|---|---|
| Surface | Carved detail, relief-worked, patterned classic surface |
| Color | White |
| Density | 150-220 kg/m³ |
| Water Absorption | below 1% |
| Dimensional Stability Test | -20 °C / +70 °C |
| Fire Class | B2 (DIN 4102-1) |
| Paintable | Yes |
| Usage | Indoor + Outdoor |
| Water Resistant | Yes |
| Dimensions | 63 × 952 × 360 mm |
| Weight | 0.84 kg |
| Sales Unit | piece |
Details
Support
Technical drawing: Download DWG (78 KB)
Similar Products(Architectural Pediments and Crowns)
The P80100 decorative header is an exceptional architectural element designed to introduce classical symmetry and grand proportions to door frames, window tops, and interior portals. Measuring 952 mm in width, 360 mm in height, and featuring a depth of 63 mm, this substantial ornament creates an immediate focal point, elevating flat walls into structurally engaging surfaces. It serves as a premium alternative to heavy, fragile plaster carvings, offering a crisp, high-relief finish that stands the test of time.
Manufactured from high-density rigid foam (150-220 kg/m³), the composite material mimics the substantial feel of solid wood while offering superior physical properties. The closed-cell structure guarantees a water absorption rate of under one percent, preventing rot, swelling, or warping in damp climates. This structural stability ensures that the intricate curves and sharp lines of the design remain perfectly preserved, even when exposed to fluctuating seasonal temperatures.
The visual composition of this model features a highly detailed, symmetrical neoclassical design. At its center, a dense cluster of stylized acanthus foliage radiates outward, flanked by flowing, draped fabric swags that end in delicate drop pendants. The depth of the casting produces sharp shadow lines, ensuring that the elaborate relief remains clearly visible from a distance under both natural and artificial lighting setups.
This wide pediment is highly versatile, proving ideal for luxury residential entryways, boutique hotel lobbies, and classical fireplace mantel designs. In exterior applications, it acts as a majestic window header or an overdoor crown for grand villas. Its dimensions are perfectly scaled to crown standard single doorways or double-hung windows, establishing a sense of architectural permanence and historical prestige.
Installation is straightforward due to the material's lightweight nature, which avoids adding dead load to building facades. The component is secured using polyurethane (PU) mounting adhesive combined with mechanical screws for permanent stability. The surface comes pre-treated with a white factory primer that prepares the material for painting. While this factory coating simplifies the process, applying an additional primer recommended by your specific paint manufacturer is optional and advised to secure their standard paint performance warranties.
- This wide, ornamental pediment is specifically scaled for framing and crowning prominent architectural features
- With a width of nearly one meter (952 mm), it is perfectly proportioned to sit atop standard single exterior doors, grand interior portals, or large window frames
- In residential interiors, it makes an outstanding statement piece when positioned directly above a classical fireplace mantel or used to crown a large decorative wall mirror
- For commercial spaces, such as boutique hotel receptions, high-end restaurants, or executive offices, it can be installed above entryways to establish a sense of traditional prestige
- When used on exterior facades, it serves as a decorative window pediment or entry portal crown on Mediterranean, Georgian, or Neoclassical villas
- To ensure longevity outdoors, the product must be coated with high-quality, UV-resistant exterior paint to protect the underlying material from sun-induced discoloration
- Ensure the mounting surface is clean, dry, and structurally sound
- Position the pediment to mark the exact installation area
- Apply a generous bead of polyurethane (PU) mounting adhesive to the rear contact surfaces of the ornament
- Press the piece firmly onto the wall and secure it mechanically using screws through designated non-detailed areas to ensure a permanent bond
- Wipe away any excess adhesive immediately
- Once cured, fill the screw holes and any minor joint gaps with a high-quality, paintable acrylic filler or exterior-grade joint compound
- After drying, gently sand the filled areas using 180-220 grit sandpaper to achieve a seamless finish
- While the factory primer prepares the surface, applying an optional paint-specific primer is recommended before finishing with two coats of high-quality water-based or synthetic paint
- This low-maintenance architectural ornament requires minimal upkeep over its lifespan
- For indoor installations, occasional dusting or wiping with a soft, damp cloth is sufficient to keep the details looking sharp
- For exterior facade applications, the pediment can be gently washed with a low-pressure garden hose to remove accumulated dust and environmental debris
- Do not use harsh acidic or highly abrasive chemical cleaners, as these can damage the protective paint layer
- Inspect the joint sealant and paint surface annually on exterior walls, and perform minor touch-ups with matching outdoor paint if any surface weathering is observed
Can the P80100 pediment header be safely installed on exterior walls?
Yes, this model is highly suitable for exterior facades. Thanks to its closed-cell rigid foam composition, it has low water absorption (below 1%), does not swell, or rot. However, because raw synthetic polymers can yellow when exposed to UV rays, it must be finished with a high-quality, UV-resistant exterior paint to ensure long-term color stability and protection.
What type of adhesive should be used to mount this heavy-looking ornament?
For a secure and permanent installation, you must use a high-quality polyurethane (PU) mounting adhesive. Standard silicone adhesives are not suitable as they do not provide the necessary structural bond. Additionally, due to the 360 mm height and 952 mm width of this piece, mechanical fastening with screws is mandatory alongside the adhesive.
Does the product require an extra primer coat before painting?
The pediment is delivered with a factory-applied white primer that prepares the surface for finishing. While you can apply paint directly over this, paint manufacturers typically require their own specific primers to guarantee their paint's adhesion and warranty. Therefore, applying an additional primer is optional but highly recommended.
How does this rigid foam pediment compare to traditional gypsum plaster options?
Unlike traditional gypsum plaster, which is extremely heavy, brittle, and prone to cracking over time, this high-density molded composite is lightweight, impact-resistant, and easy to handle. It is resistant to cracking during building settlement and is moisture-resistant, making it much more durable and easier to install.
Can I trim or cut this pediment to fit a narrower door frame?
Because this model features a highly detailed, symmetrical classical design with draped swags ending in specific drop pendants on both sides, cutting or trimming the width is not recommended. Trimming the edges would destroy the symmetrical balance and cut off the decorative hanging details. It is best used on frames that match or exceed its 952 mm width.