RTV-SIS | Small Inline Slate

Small Inline Slate Vent

Small inline slate vent to enable ventilation directly into a roof space or connect to a ducted ventilation system


• On roofs with Natural or Synthetic slates
• Enables ventilation directly into a roof space
• Can also be connected to a ducted ventilation system inside the building

Available in single, box and pallet quantities.

Product Information

Product Codes

Product DescriptionColourWeightBox QuantitySingle CodePack QuantityPack CodePallet Quantity
Small Inline Slate VentBlack0.64kg1RTV-SISBL5RTVMULTI-SISBL120

RTV-SISBL available in single, pack or pallet quantities. For pack quantities, 5 Small Inline Slate Vents are packaged in one large box.

  • Suitable for roofs with a minimum pitch of 22.5°
  • Free ventilation area of 9,450mm².
  • Sized to replace one slate to provide a continuous visual appearance along the roof when viewed at all levels
  • Shaped to manage and channel rainwater back down onto the roof tiles and away from the vent opening
  • Provides a 110mm duct connection with the optional RTV-ADIS duct adapter
  • 4mm spaced external grille to prevent rainwater ingress and keep out large insects, vermin and debris
  • Lightweight and easy to handle
  • BS EN 490:2011 Concrete roofing tiles and fittings for roof covering and wall cladding – product specifications (+A1:2017)
  • BS 5250: 2021 Management of moisture in buildings – Code of practice
  • BS 5534:2014 Slating and tiling for pitched roofs and vertical cladding – code of practice (+A2:2018)
  • Manufactured to BS EN ISO 9001:2015 and BS EN ISO 14001:2015
  • Complies with all relevant sections of the Building Regulations 2010
  • Satisfies all relevant NHBC requirements

Natural or Synthetic slates from all major manufacturers in smaller sizes such as:

  • 400 x 250mm
  • 400 x 225mm
  • 400 x 200mm
  • 350 x 250mm
  • 350 x 200mm
  • 300 x 200mm
  • Injection moulded Polypropylene with textured finish
  • Available in Black only
  • The Inline Slate Adapter (RTV-ADIS) can be used to attach the vent to 110mm ductwork
  • The 110mm Flexi-Pipe (RTV-KIT1) can be used to aid connection to ventilation duct or soil vent pipe
  • Can be connected to 100/110/125/150mm duct sizes when combined with the multi adapter (RTV-ADMULTI)

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