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SILL & JAMB CORNER MOULDS - PACK OF 50

SKU: SJCM50
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Pre-Formed 90-Degree Corner Protection: Eliminates corner gaps, thin spots, and tape tearing at vulnerable sill and jamb junctions.

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E2/AS1 Weatherproofing Compliance: Designed to satisfy New Zealand Building Code window framing detail requirements.

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System Integration: Purpose-built to pair with ViBest Super Pro Flashing Tape and all Ventia roof and wall underlays.

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Trade Quantity Pack: Supplied in a pack of 50 pieces, offering economical job-site coverage for up to 25 joinery openings.

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Durable Polypropylene Material: Tough, flexible polymer construction that staples easily and resists physical damage during joinery installation.

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Timber & Steel Framing Compatible: Suitable for use on residential and commercial timber and light steel-framed builds.

$28.75 $32.63 50 per bag

incl. GST
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Product Overview

Sill & Jamb Corner Moulds (Pack of 50) are essential window and door joinery flashing accessories imported and supplied throughout New Zealand exclusively by EBuilt Ltd (EProducts NZ Ltd).

Engineered in Poland by mdm NT, these pre-formed molded corner pieces are specifically designed to meet New Zealand building requirements for window and door opening protection. Installed at the vulnerable sill-to-jamb framing junctions before laying flashing tape such as ViBest Super Pro, they provide reliable, long-term weathertightness and moisture protection across residential and commercial timber and steel-framed buildings.

Advanced Technical Quality & Material Construction

Sill & Jamb Corner Moulds combine durable polypropylene construction with an installer-friendly design:

  • Pre-Formed Seamless Protection: Molded to precise 90-degree internal corner angles to eliminate the risk of corner tearing, stretching, or thin spots common with field-folded tapes.

  • Flexible Polypropylene Polymer: Manufactured from a tough, flexible polymer material that staples cleanly into timber or steel joinery framing without cracking or degrading over time.

  • Trade Pack Format: Supplied in a convenient pack of 50 individual corner moulds, providing coverage for up to 25 standard window or door openings on site.

Core Performance Benefits

  • Fail-Safe Sill & Jamb Corner Sealing: Installs directly into the critical junction where the window sill trimmer meets the jamb stud, reinforcing the most leak-prone area of any joinery opening.

  • Seamless Flashing System Integration: Works in tandem with ViBest Super Pro Flashing Tape and Ventia or Verso underlays to create a fully compliant, weather-resistant window framing seal under New Zealand E2/AS1 details.

  • Rapid Job-Site Installation: Fast staple-fix installation drastically reduces corner preparation time and eliminates complicated tape folding on site.

  • Universal Framing Suitability: Compatible with timber framing and light steel framing systems across all New Zealand wind zones.

  • Enhanced Waterproof Integrity: Creates a rigid, stable backing layer beneath self-adhesive flashing tapes, ensuring fixings through window brackets maintain a watertight seal.

Tested Engineering Parameters
Technical Specifications
Product Name Sill & Jamb Corner Moulds
Supplier EBuilt Ltd (EProducts NZ Ltd)
Manufacturer mdm NT (Poland)
Pack Quantity 50 pieces per pack (serves up to 25 openings)
Material Construction Flexible Polypropylene Polymer
Primary Application Sill and jamb junction corner protection for window and door openings
System Integration ViBest Super Pro Flashing Tape & Ventia Wall Underlays
Code Compliance Meets NZBC E2/AS1 window opening detailing requirements
Framing Compatibility Timber framing & light steel framing
Fastening Method Stainless steel staples or clouts directly to framing
Storage Requirements Store in clean, dry conditions away from weather and direct UV
Specifier & BCA Downloads
Architectural Files

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