SIGA Majcoat Mechanical – 59" × 164' (807 sq. ft.)

SIGA Majcoat is a range of diffusion-open roof underlay membranes for pitched roofs, designed to withstand driving rain and provide permanent protection for the exterior roof structure and the space below.

The Majcoat range offers different levels of weather exposure and roof-pitch performance to suit a variety of roofing applications:

Majcoat® 350: Multi-layer, thermally weldable and diffusion-open roofing membrane designed for roof pitches from 5° and extended atmospheric exposure.

Majcoat® 250 SOB: Multi-layer, driving-rain-resistant and diffusion-open roof underlay membrane designed for roof pitches from 10° and atmospheric exposure up to 12 weeks.

Majcoat® 200 SOB: Multi-layer, diffusion-open roofing membrane designed to withstand driving rain for roof pitches from 10° and atmospheric exposure up to 12 weeks.

Majcoat® 150 & 150 SOB: Multi-layer, diffusion-open roofing membranes designed to withstand driving rain for roof pitches from 10° and atmospheric exposure up to 4 weeks.

Features

• Diffusion-open / vapour-permeable roof membranes
• Designed for pitched roof assemblies
• Resistant to driving rain
• Provides permanent exterior protection for roof structures
• Helps protect the space below the roof assembly
• Supports outward drying of roof assemblies
• Multi-layer construction
• Options for roof pitches as low as 5°
• Weather-exposure ratings of up to 4, 12 or 16 weeks, depending on variant
• SOB variants feature integrated adhesive zones
• Thermally weldable option available with Majcoat 350
• Multiple performance levels for different roof designs and exposure requirements