SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll

SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll
SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll
Guide Price
SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll
SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll
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SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll
Guide Price: £266.51 (£319.81 inc VAT)
Price per m2: £3.55/m2 (£4.26 inc VAT)
  • Product Code: A1-7695
  • Delivery Time: 3 - 5 days
  • Brand: SIGA
  • Model: 1.5m x 50m - 75m2
  • Weight: 15.00kg
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SIGA Majcoat 200 SOB Breathable Membrane for Pitched Roofs - 1.5m x 50m roll

Length: 50000mm
Width: 1500mm
Roll Coverage: 75m2
Weight/m2: 0.2kg
Weight: 15kg

SIGA Majcoat 200 SOB is a premium, diffusion‑open, nail‑tight pitched‑roof membrane with integrated self‑adhesive strips (SOB) for fast, wind‑tight installation. It offers exceptional weather protection, high vapour permeability, and long‑term durability, making it ideal for demanding pitched‑roof constructions with open or closed joints. SIGA Majcoat 200 SOB is a robust, breathable roof underlay engineered for installation above rafters in pitched roof assemblies. With an sd‑value of approx. 0.15m, it allows moisture to escape safely from the roof build‑up while providing reliable protection against wind, rain and snow.

It includes two integrated self‑adhesive strips, enabling quick, secure and wind‑tight overlaps without additional tape. This significantly speeds up installation and ensures consistent sealing quality across the entire roof surface. Majcoat 200 SOB is extremely tear‑resistant, UV‑stable, and nail‑tight, making it suitable for both traditional and modern roof designs, including open‑joint cladding up to 20mm. SIGA Majcoat 200 SOB is a high‑performance, diffusion‑open roof membrane offering fast installation, wind‑tight overlaps, and exceptional durability. Its integrated adhesive strips and robust construction make it ideal for modern pitched roofs requiring reliable weather protection and safe moisture management.

CHARACTERISTICS

  • Integrated self‑adhesive strips - fast, wind‑tight sealing of overlaps.
  • Highly breathable membrane - sd ≈ 0.15m for safe moisture transport.
  • Wind‑tight and weatherproof - protects insulation and structure from wind and rain.
  • Nail‑tight performance - reinforced layers resist puncture from fixings.
  • UV‑stable - suitable for open joints up to 20mm.
  • Robust 3‑layer construction - durable functional film with protective layers.
  • Wide temperature resistance - reliable performance in extreme conditions.
  • Compatible with SIGA tapes - ensures airtight and wind‑tight detailing.

APPLICATION

  • Above rafters, pitched roofs, open‑joint cladding
  • Pitched roof underlay for wind‑tightness and weather protection
  • Breathable roof build‑ups
  • Open‑joint cladding up to 20mm
  • Timber‑frame roof construction
  • High‑performance insulation systems
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