SIGA Majrex 200 - Vapour Control Layer - 1.5m x 50m roll

SIGA Majrex 200 - Vapour Control Layer - 1.5m x 50m roll
Guide Price
SIGA Majrex 200 - Vapour Control Layer - 1.5m x 50m roll
Guide Price: £316.51 (£379.81 inc VAT)
Price per m2: £4.22/m2 (£5.06 inc VAT)
  • Product Code: A1-7617
  • Delivery Time: 3 - 5 days
  • Brand: SIGA
  • Model: 1.5m x 50m - 75m2
  • Weight: 11.25kg
Our ratings on 10-11-2026:
Google My Business Reviews
4.8 out of 5

SIGA Majrex 200 - Vapour Control Layer - 1.5m x 50m roll

Length: 50000mm
Width: 1500mm
Thickness: 0.3mm
Roll Coverage: 75m2
Weight/m2: 0.15kg
Weight: 11.25kg

Majrex 200 is SIGA’s high‑performance vapour control layer designed for warm‑side installation in roofs, walls and ceilings. Its directional vapour‑control technology (Hygrobrid®) allows moisture to move safely out of the structure while preventing moisture from entering, significantly reducing the risk of condensation, mould, and structural damage. It allows controlled drying towards the interior when needed.

This makes Majrex 200 ideal for timber‑frame, steel‑frame, and insulated roof constructions, especially where moisture safety is critical. Majrex 200 offers superior moisture management, high durability, and excellent airtightness, making it a trusted choice for modern, energy‑efficient buildings. Its directional vapour‑control behaviour provides a significant safety advantage over traditional VCLs, especially in timber structures.

CHARACTERISTICS

  • Hygrobrid® directional technology - prevents moisture ingress while allowing safe drying.
  • High tear resistance - reinforced membrane for reliable installation.
  • Improved condensation control - reduces risk of mould and structural damage.
  • Airtight layer - supports energy‑efficient construction.
  • Easy installation - stable, low‑stretch membrane for clean detailing.
  • Compatible with SIGA tapes - ensures durable, airtight joints.
  • Suitable for roofs and walls - versatile across building envelopes.

APPLICATION

  • Warm‑side vapour control in roofs and walls
  • Timber‑frame construction
  • Steel‑frame insulated walls
  • Ceilings and loft conversions
  • Moisture‑sensitive assemblies

    

    

780mm SIGA Wetguard 200 SA - Non-Slippery Diffusion Open Membrane - 50m roll 780mm SIGA Wetguard 200 SA - Non-Slippery Diffusion Open Membrane - 50m roll
Guide Price
Brand: SIGA Model: 780mm x 50m - 39m2
Delivery Time: 3 - 5 days
780mm SIGA Wetguard 200 SA is a diffusion-open, full-surface self-adhesive protective membrane designed to provide reliable moisture protection for timber elements during transportation, assembly and the construction phase. Developed specifically for timber construction, it offers an effective tempo..
Guide Price: £314.58
£377.50 inc VAT
310ml SIGA Primur Cartridge - Permanently Elastic Adhesive Sealant 310ml SIGA Primur Cartridge - Permanently Elastic Adhesive Sealant
Guide Price
Brand: SIGA Model: 310ml
Delivery Time: 3 - 5 days
310ml SIGA Primur Cartridge is a permanently elastic, high‑performance adhesive sealant supplied in a standard cartridge format for creating airtight, wind‑tight and movement‑tolerant connections between vapour control layers and solid building components. It delivers strong initial adhesion, precis..
Guide Price: £10.29
£12.35 inc VAT
SIGA Majpell 5 - Diffusible Vapour Control Layer - 3m x 50m roll SIGA Majpell 5 - Diffusible Vapour Control Layer - 3m x 50m roll
Guide Price
Brand: SIGA Model: 3m x 50m - 150m2
Delivery Time: 3 - 5 days
SIGA Majpell 5 is a high‑performance, vapour‑control and airtightness membrane designed for the warm side of insulated building assemblies. It is diffusible, meaning it allows controlled drying towards the interior while preventing excessive moisture from entering the structure. Majpell 5 is used in..
Guide Price: £388.22
£465.86 inc VAT
600ml SIGA Primur Tubular Bag - Permanently Elastic Adhesive Sealant 600ml SIGA Primur Tubular Bag - Permanently Elastic Adhesive Sealant
Guide Price
Brand: SIGA Model: 600ml
Delivery Time: 3 - 5 days
600ml SIGA Primur Tubular Bag is a permanently elastic, high‑performance adhesive sealant supplied in a tubular foil pack for creating airtight, wind‑tight and movement‑tolerant connections between vapour control layers and solid building components. It offers precise application, strong adhesion, a..
Guide Price: £18.57
£22.28 inc VAT
SIGA Rissan 100 - Single-Sided Flexible Airtight Sealing Tape - 100 x 25m roll - Box of 6 rolls SIGA Rissan 100 - Single-Sided Flexible Airtight Sealing Tape - 100 x 25m roll - Box of 6 rolls
Guide Price
Brand: SIGA Model: 100mm x 25m roll - Box of 6 rolls
Delivery Time: 3 - 5 days
SIGA Rissan 100 is a wide, highly flexible single‑sided sealing tape designed for creating durable airtight seals on membranes, vapour control layers, and penetrations on the warm side of the building envelope. Its 100 mm width and elastic backing make it ideal for sealing large or irregular areas, ..
Guide Price: £277.14
£332.57 inc VAT
SIGA Dockskin 200 Deep-Penetrating Primer - 1kg SIGA Dockskin 200 Deep-Penetrating Primer - 1kg
Guide Price
Brand: SIGA Model: 1kg
Delivery Time: 3 - 5 days
SIGA Dockskin 200 is a deep‑penetrating, high‑performance primer designed specifically for mineral, porous and weak substrates, creating a strong, durable bonding base for SIGA exterior tapes such as Fentrim 2 and Fentrim IS 2. It offers exceptional penetration depth, substrate consolidation, and re..
Guide Price: £31.54
£37.85 inc VAT
This product is listed in the following categories and systems (click to show).

Categories