Nilvent breathable membrane for unventilated pitched roofs - CMS

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Abutments At any abutment, chimney stack or similar roof penetration, apply 1.5 mm butyl rubber tape (e.g. glazing tape) to the abutment. Turn up the Kingspan nilvent ® at least 50 mm under the flashing and secure it with a counter batten/tiling batten pressed firmly against the abutment and fixed to the end rafter or trimmer. In constructions with a sarking board under a slated roof with no counter battens or slate battens, the above method is followed without the batten to secure the membrane. Kingspan nilvent ® turned up by 50 mm (min.) 1.5 mm butyl rubber tape e.g. glazing tape Figure 7a Abutments – Fully Supported Horizontal Installation Figure 7b Abutments – Fully Supported Horizontal Installation with Natural Slates Kingspan nilvent ® turned up by 50 mm (min.) 1.5 mm butyl rubber tape e.g. glazing tape Flashing Line of rafter Figure 7c Abutments – Vertical Installation Line of rafter Kingspan nilvent ® Flashing Continuous substrate i.e. sarking board, insulation over rafters or insulation between rafters and rafters laid taut in horizontal runs Kingspan nilvent ® laid taut in vertical runs Rafter forming discontinuous substrate 10 Kingspan nilvent ® turned up by 50 mm (min.) 1.5 mm butyl rubber tape e.g. glazing tape Kingspan nilvent ® turned up by 50 mm (min.) 1.5 mm butyl rubber tape e.g. glazing tape Flashing Kingspan nilvent ® laid taut in horizontal runs Flashing Line of rafter Figure 7d Abutments – Draped Horizontal Installation Sarking board forming a continuous substrate Line of rafter Kingspan nilvent ® laid taut in vertical runs Rafter forming discontinuous substrate
Verges Extend the Kingspan nilvent ® across the gable wall and overhang. Turn it up at least 50 mm behind the fascia board before fixing with a batten to the flying rafter. Where no counter battens are used, extend the Kingspan nilvent ® across the gable wall and overhang, and extend it to fully cover the undercloak. Kingspan nilvent ® laid taut in horizontal runs Line of rafter Continuous substrate i.e. sarking board, insulation over rafters or insulation between rafters and rafters. Figure 8a Verges – Fully Supported Horizontal Installation Kingspan nilvent ® laid taut in vertical runs Line of rafter Rafter forming discontinuous substrate Flying rafter Figure 8c Verges – Vertical Installation Fascia board Mortar infill Undercloak Kingspan nilvent ® turned up by 50 mm (min.) Fascia board Mortar infill Undercloak Flying rafter Kingspan nilvent ® turned up by 50 mm (min.) 11 Line of rafter Sarking board forming continuous substrate Kingspan nilvent ® laid taut in horizontal runs Kingspan nilvent ® fully covering the undercloak Fascia board Flying rafter Figure 8b Verges – Fully Supported Horizontal Installation with Natural Slates Kingspan nilvent ® draped over timbers in horizontal runs Line of rafter Rafter/counter battens forming discontinuous substrate Kingspan nilvent ® fully covering the undercloak Figure 8d Verges – Draped Horizontal Installation Fascia board Mortar infill Mortar infill Flying rafter
Page 1 and 2: Insulation BREATHABLE MEMBRANE FOR
Page 3 and 4: Horizontal Installation on a Discon
Page 5 and 6: For horizontal installation on a di
Page 7 and 8: Kingspan nilvent ® lapped over eav
Page 9: Installation in a Horizontal Orient
Page 13 and 14: Valleys Lay the Kingspan nilvent ®
Page 15 and 16: Air Permeability Kingspan nilvent

Nilvent breathable membrane for unventilated pitched roofs - CMS

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