0.225 mm thick, high-performance, polyethylene based, vapour control layer.
A 0.225 mm thick, high performance, polyethylene based, vapour control layer, suitable for use in high humidity environments & green roofing systems if not punctured (loose laid only), loose-laid ballasted warm roof systems and all mechanically fastened systems using both Sarnafil PVC & FPO membranes.
Water vapour resistance: > 1500 MNs/g.
Loose laid over any smooth surface with all side and end laps overlapped a minimum 80 mm, then sealed with Sarnavap jointing tape. At parapets and upstands, Sarnavap must be carried up to the upper edge of the thermal insulation and sealed to the upstand/ penetration with Sarnavap jointing tape, to form an airtight seal. When installed vertically, Sarnavap must be mechanically fastened along its top edge.
If the surface is rough, a layer of Sarnafil Type T should be used as cushioning layer.
Sarnavap jointing tape
Sarnafil Type T
|Standard product features|
High density (HDPE) and low density polyethylene (LDPE).
G410-EL Adhered Roof System - Sarnavap 1000E
G410-EL Adhered Roof System - Sarnavap 5000E SA
G410-EL Adhered Roof System - Sarnavap 500E
G410-EL Adhered Roof System – Sarnavap 500E
G410-EL Ballasted Roof System - Sarnavap 1000E & S-Felt T 300
G410-EL Ballasted Roof System - Sarnavap 1000E & Sarnafil G445-13
G410-EL Ballasted Roof System - Sarnavap 5000E SA & S-Felt T 300
G410-EL Ballasted Roof System - Sarnavap 5000E SA & Sarnafil G445-13