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SerFibro 20 mm autoclaved fibre cement window jamb and architrave trim profiles (stepped PS-series and 45-degree beveled flat profile)
20 mm autoclaved fibre cement window jamb & architrave profiles — Flat, 45° Beveled (80–200 mm) and Stepped PS-01..PS-04 (100–150 mm).
Uncoloured / Paintable SF-JAMB · TX-SV-01 / TX-SM-01

Fibre Cement Window Jamb & Architrave Trim Profiles (20 mm — Flat, 45° & PS Series)

SerFibro 20 mm Fibre Cement Window Jamb & Architrave Profiles frame exterior windows, doors, and building corners with crisp mineral precision. Available in six distinct geometries—Flat, 45° Beveled, and four Stepped decorative profiles (PS-01, PS-02, PS-03, PS-04)—across 80 to 200 mm widths and 2500 / 3000 mm lengths, they deliver permanent Class A1 fire safety and impact strength.

Brand SerFibro
Product Category Uncoloured / Paintable Window Jambs (Söve) →
Product Group 20 mm Window Jamb, Architrave & Corner Trim Profiles (Flat, 45° Beveled & PS-01..04)
Fire Resistance Class A1 TS EN 13501-1
Primer Status
Application Areas
  • Window and exterior door perimeter architrave surrounds (söve)
  • Window reveal / jamb linings and lintel trim details
  • 45° beveled building corner trims on lap-siding and prefab facades
  • Class A1 non-combustible fire-break trims around window openings
  • Boutique hotels, residential apartments, villas & historic renovations
  • Decorative wall panel framing and vertical pilaster bands
SerFibro

Products in This Series

Product Quick Specification Summary

Confirmed per variant & order
Product Form
20 mm Autoclaved Window Jamb & Trim Bar EN 12467 Cat. A · Class A1
Surface / Texture Code
TX-SV-01
Flat, 45° Beveled & Stepped PS-01 / PS-02 / PS-03 / PS-04
Supplied Finish Options
Natural Grey Unprimed or Factory Alkali-Primed Paintable
Common Enquiry Formats
Widths: 80 / 100 / 120 / 150 / 200 mm Lengths: 2500 / 3000 mm
Candidate Thicknesses
20 mm nominal thickness across all 6 profile sub-types 14 variants
Geometric Board Area
0.200 – 0.600 m²/pc 150 to 450 pcs per export pallet
90 m²/pallet

SerFibro 20 mm Window Jamb Profiles — 16 Superior Advantages

Manufactured from 100% natural raw materials; eco-friendly and safe for human health.

Completely free of asbestos (NT Type) and any substances harmful to human health.

Class A1 non-combustible per EN 13501-1; does not melt and helps contain fire spread.

Odourless and emits zero toxic gases or harmful fumes during fire exposure.

Unaffected by water with lower absorption than reinforced concrete; safe in humid climates.

Autoclaved silicate-cement matrix provides extreme weather and UV radiation resistance.

Does not rot, corrode or degrade; long service life without special maintenance.

Provides strong thermal (λ = 0.20 W/mK) and acoustic insulation contribution.

Can be painted repeatedly with any alkali-resistant interior or exterior architectural paint.

Easily cut, drilled and machined with appropriate tools for fast dry installation.

Eliminates wet fine-plastering labour on walls, saving significant schedule time and cost.

High impact and mechanical shock resistance for demanding public and commercial walls.

Lightweight & easy to handle: an 8 mm board weighs approx. 11.2 kg/m² depending on ambient humidity.

Frost-resistant per TS EN 12467; performs reliably even in severe sub-zero climates.

Resistant to chemical agents and animal waste—ideal for agricultural and industrial facilities.

Bonds excellently to EPS/XPS/rockwool cores for composite sandwich and press-panel manufacturing.

Board Dimensions & Pallet Packing Table

Technical Drawing Dimensions (mm × mm) Thickness (mm) Board Area (m²) Boards per Pallet Enquiry Form
Flat / 45° Beveled
80 × 2500 mm
20 mm 0.2 m² 450 pcs
Flat / 45° Beveled
80 × 3000 mm
20 mm 0.24 m² 375 pcs
Flat / 45° Beveled
100 × 2500 mm
20 mm 0.25 m² 360 pcs
Flat / 45° Beveled
100 × 3000 mm
20 mm 0.3 m² 300 pcs
Flat / 45° Beveled
150 × 2500 mm
20 mm 0.375 m² 240 pcs
Flat / 45° Beveled
150 × 3000 mm
20 mm 0.45 m² 200 pcs
Flat / 45° Beveled
200 × 2500 mm
20 mm 0.5 m² 180 pcs
Flat / 45° Beveled
200 × 3000 mm
20 mm 0.6 m² 150 pcs
Stepped PS-01
100 × 2500 mm
20 mm 0.25 m² 360 pcs
Stepped PS-01
100 × 3000 mm
20 mm 0.3 m² 300 pcs
Stepped PS-02
120 × 2500 mm
20 mm 0.3 m² 300 pcs
Stepped PS-02
120 × 3000 mm
20 mm 0.36 m² 250 pcs
Stepped PS-03 / PS-04
150 × 2500 mm
20 mm 0.375 m² 240 pcs
Stepped PS-03 / PS-04
150 × 3000 mm
20 mm 0.45 m² 200 pcs
SerFibro

Instant Board Quantity, Area & Volume Enquiry

SF-JAMB · Window Jambs / Söve (20 mm)

SerFibro 20 mm Window Jamb Profiles — Complete Technical Specifications Table

Property / Parameter Specification Value
Product Definition Cellulose fibre reinforced cement and silicate autoclaved board
Product Type & Category NT Type — Category A Solid Autoclaved Window Jamb & Trim Profile (TS EN 12467)
Surface Appearance Flat, 45° Beveled or Stepped PS-01..PS-04 Architrave Profile (Unprimed / Pre-Primed)
Tolerance Level Level 1
Standard Dimensions Widths 80 / 100 / 120 / 150 / 200 mm × Lengths 2500 / 3000 mm
Thickness Range 20 mm solid monolithic thickness
Dimensional Tolerances Long Edge (length): ± 5 mm / Short Edge (width): ± 3.75 mm
Thickness Tolerance (e: board thickness) Smooth Board: ± 10% e (Patterned Board: -10% e / +15% e)
Out-of-Squareness at Corners ± 2 mm/m
Edge Straightness ± 0.1% a (a: edge length)
Density ~ 1350 ± 50 kg/m³ (8 mm board weight ~ 11.2 kg/m² depending on ambient moisture)
Vapour Diffusion Resistance Factor μ ≤ 30
Porosity ~ 30%
Flexural Strength (Minimum) Category A Exterior (Class 2): ≥ 7.0 N/mm² | Category C Interior (Class 3): ≥ 10.0 N/mm² (average of length/width)
Frost Resistance Frost-resistant in accordance with TS EN 12467
Water Impermeability Water-impermeable in accordance with TS EN 12467
Flame / Fire Resistance Non-combustible, Class A1 building material per EN 13501-1
Asbestos Content Asbestos-free (NT Type board)
Harmful Substance Emission Zero harmful substance or toxic gas emission
Thermal Expansion Coefficient αt = 0.005 mm/mK
Thermal Conductivity λ = 0.20 W/mK
Water Absorption Ratio < 30%
In-Stock Board Moisture Content < 10% (depending on ambient humidity)
Moisture Dimensional Change 0.5 mm/m (at full saturation)

Non-Combustibility & Thermal Conductivity Laboratory Tests

8 mm Board Furnace Test

Duration: 3 Hours · Temperature: 500 °C · Class A1 No Ignition

20 mm Board Furnace Test

Duration: 1 Hour · Temperature: 500 °C · Structural Integrity Preserved

Front vs Rear Face Thermal Drop (1 Hour)

Exposed Front Face: 506 °C → Unexposed Rear Face: 192 °C

SerFibro

Architectural Facade & Material Appearance Examples

Architectural facade visuals illustrating real texture, joint modulation, and profile details for this fibre cement series. Available as standalone material supply or with integrated project consultancy, facade engineering, and application.

Open Full Facade & Material Gallery
Prestige Villa · 20 mm PS-03 / PS-04 Window Jambs & Cornices

20 mm Stepped PS-03 / PS-04 Window Jamb Surrounds & Pilaster Mouldings on White Villa

PS-03 / PS-04 (150 × 20 mm) · Mitered Class A1 surrounds
Modern Detached House · Flat / 45° Jambs + Wood Cladding

Crisp White 20 mm Flat & 45° Beveled Jamb Bands Framing Warm Wood-Look Panels

Flat / 45° Jamb (80–200 × 20 mm) · Clean modern border
High-Rise Residential Tower · Class A1 Window Surrounds

Non-Combustible 20 mm Window Jamb Profiles Across High-Rise Residential Elevation

PS-01 / PS-02 (100–120 × 20 mm) · Zero fire leap at windows
Window & Door Surrounds · 20 mm Jamb / Söve Profiles

Mitered 20 mm Stepped & Beveled Fibre Cement Window Jamb Surrounds

20 mm solid jamb bar · 45° mitered corners · Paintable face

16-Point Technical & Export Supply Dossier

01 Product Overview & 20 mm Window Jamb System

Index

SerFibro Window Jamb & Architrave Profiles are 20 mm thick autoclaved fibre cement facade trims designed to frame window openings, exterior doors, reveals, and building corners with crisp architectural relief and full Class A1 fire safety.

02 Six Profile Sub-Types: Flat, 45° Beveled & PS-01..PS-04

Index

The range covers Flat and 45° Beveled profiles in 80, 100, 150, and 200 mm widths alongside four stepped decorative architrave profiles: PS-01 (100 mm), PS-02 (120 mm), and PS-03 / PS-04 (150 mm), all supplied in 2500 and 3000 mm lengths.

03 Fire-Safe Window Reveals (TS EN 13501-1 Class A1)

Index

Window openings are the primary pathway where interior flames leap onto exterior facades. Framing windows with Class A1 non-combustible fibre cement trims instead of EPS foam prevents molten dripping and flame propagation around glazing.

04 Unprimed & Pre-Primed Surfaces for Contrasting Frames

Index

Supplied natural grey or factory alkali-primed, SF-JAMB profiles accept exterior acrylic and silicone facade coatings—enabling crisp off-white surrounds on dark slate/stone facades or anthracite frames on light elevations.

05 45° Mitered Frame Corners vs Traditional Butt Framing

Index

Stepped PS-01..04 profiles are typically miter-cut at 45° at upper window corners so the stepped relief wraps continuously around the opening, whereas Flat and 45° Beveled profiles also support clean vertical-over-horizontal butt framing and external wall corners.

06 Villas, Light-Steel Prefab Houses, Hotels & Renovations

Index

Prefabricated steel-frame house builders pair 80 / 100 mm Flat and 45° trims with SF-SIDING lap planks around windows and external corners, while urban apartment and hotel architects specify 120 / 150 mm PS-series frames with SF-CORNICE floor bands.

07 Mechanical Fixing + Elastic Adhesive & Joint Sealing

Index

Fix 20 mm jamb bars mechanically (stainless countersunk screws) backed by exterior polyurethane adhesive, and leave a flexible UV-resistant mastic joint between the fibre cement bar and the aluminium/PVC window frame to accommodate differential thermal movement.

08 Impact, Bird-Pecking & Freeze-Thaw Resistance

Index

Ground-floor window surrounds and door jambs suffer frequent knocks from maintenance equipment, hail, and birds. Solid 20 mm autoclaved fibre cement resists indentation, moisture ingress, and freeze-thaw delamination under EN 12467 Category A.

09 Window Opening Perimeter Take-Off & Bar Length Selection

Index

Match 2500 mm or 3000 mm bar lengths to window heights (e.g. a 1400 × 1500 mm window takes two vertical legs + one top lintel from two 2500 mm bars with minimal offcut). Include 8–10% allowance for 45° miter cuts.

10 Standardised 90 m² Export Pallets Across All Widths

Index

Every full pallet across the SF-JAMB range equals 90.0 m² geometric area: from 450 pcs (80×2500 mm) and 360 pcs (100×2500 mm) to 300 pcs (120×2500 mm), 240 pcs (150×2500 mm), and 150 pcs (200×3000 mm), simplifying freight weight calculation.

11 Dry Covered Storage & Edge Protection on Site

Index

Keep pallets wrapped on flat timber bearers indoors away from standing water or mud splashes. Wipe dry sawing dust off immediately before any moisture contacts the primed surface.

12 Mixed Container & Road Truck Dispatch from Türkiye

Index

Order SF-JAMB window trims standalone or consolidated alongside SerFibro facade panels, lap siding, and KS-01/02 cornices under EXW, FCA, FOB, CIF, or DAP export delivery terms.

13 Profile Section Samples (PS-01..04 & 45° Bevel)

Index

Architects and developers can request short physical cross-section samples of Flat, 45° Beveled, and PS-01..04 profiles to evaluate shadow depth against window frame mock-ups.

14 Supply, Consultancy, Engineering & Application Scope

Index

Standard material quotations cover Fibre Cement Window Jamb & Architrave Profiles (Söve) in the confirmed dimensions and surface state along with export palletising. Upon request, our CFY Engineering & Architecture team also provides architectural project design, modulation consultancy, facade engineering, substructure coordination, and professional site application as dedicated items in your quotation.

Related Fibre Cement Product Families

Frequently Asked Technical & Commercial Questions

Which window jamb profile models and widths are available in 20 mm?

Six models are available in 20 mm thickness and 2500 / 3000 mm lengths: Flat and 45° Beveled profiles in 80, 100, 150, and 200 mm widths, plus Stepped decorative profiles PS-01 (100 mm), PS-02 (120 mm), PS-03 (150 mm), and PS-04 (150 mm).

Can 80 mm and 100 mm Flat / 45° profiles also be used as external corner trims for lap siding?

Yes. Light-steel prefab and villa builders widely use 20 mm thick 80 mm and 100 mm Flat or 45° Beveled bars as crisp vertical corner boards against 8 / 10 mm horizontal lap-siding planks, creating a clean stop edge.

Are fibre cement window jambs Class A1 non-combustible?

Yes. Autoclaved SerFibro jamb profiles achieve TS EN 13501-1 Class A1 reaction-to-fire performance, making them safe around window lintels and escape routes where EPS foam trims are prohibited.

How many pieces are in a pallet of SF-JAMB profiles?

Each full pallet holds 90.0 m²: for 2500 mm bars, 450 pcs (80 mm), 360 pcs (100 mm), 300 pcs (120 mm), 240 pcs (150 mm), or 180 pcs (200 mm); for 3000 mm bars, 375, 300, 250, 200, or 150 pcs respectively.

Can I order window jambs together with kat silmesi and facade boards?

Yes. Multi-line project enquiries combining SF-JAMB, SF-CORNICE, Smooth Boards, and Lap Siding are consolidated onto shared trucks or export containers—use the multi-line quote form or WhatsApp desk.

16 Fibre Cement Window Jamb & Architrave Profiles (Söve)

Structured B2B Quotation & Sample Request (Direct WhatsApp)

Compile single or multiple fibre cement product lines, thicknesses, formats, and destination details into a structured technical summary sent directly to our export desk on WhatsApp (+90 505 507 04 18). Zero server form queues.

Product Specification Lines

For multi-sheet CAD/PDF packages, you may also email: [email protected]

Ready to Verify Formats, Finishes & Export Delivery Terms?

Share your target board thickness, outer dimensions, finish state, and destination port. Our commercial office prepares a product-matched quotation and sample dispatch plan.

Request via WhatsApp Request Export Quote +90 505 507 04 18
WhatsApp Export & Supply Desk