Features and Benefits:
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Single Air Brick
General Details
- A custom-made metal ‘Z’ shape Periscope® sub-floor ventilator.
- Manufactured from A1 classified galvanised steel.
- Three air brick styles meet different design, airflow and vent placement requirements in buildings.
- For cladding, flanged air brick options cover cut edges to maintain the external appearance.
- Provide high airflow rates to effectively ventilate the underfloor void.
- Air bricks supplied custom powder coated to Class A2-s1, d0. Choose from the RAL Classic colour chart in matt, semi-gloss or gloss finishes to match cladding or brickwork. Signature architectural finishes are also available.
- Built-in weather protection. Drainage holes in the air brick provide discreet water outlets, and louvred styles feature angled grilles to promote runoff, reducing the risk of water transfer into the duct.
- Installed using standard mortar joints for a neat appearance in brickwork.
- Suitable for:
- The external walls of high-rise relevant buildings over 18m high (11m high in Scotland).
- The external walls of relevant buildings 11m+ in height or more than 5 storeys, undergoing unsafe cladding remediation work (Building Safety Act 2022).
- The external walls of higher-risk buildings at least 18m high or with at least 7 storeys (Building Safety Act 2022).
- The external surfaces of residential purpose group buildings more than 11m high.
- The external surfaces of residential purpose group buildings 11m high or less where an external wall is within 1m of the relevant boundary.
- Bespoke design service available. For further information contact our Technical Sales Office on 01536 511874 or email admin@rytons.com.
- Telescopic fitting air brick gives the flexibility to handle minor variations in the external façade.
- No on-site assembly.
- No screw fixing or sealing required, saving time, labour and ensuring correct alignment and airtight joints throughout.
A1 Fire Classification Explained:
- Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Single Air Brick is made from galvanised steel. Galvanised steel is considered fire class A1 without testing, as per European Commission paper 96/603/EC referred to in BS EN 13501-1:2018.
- Classification: A1. Definition: Non-combustible. Description: No contribution to fire.
Reference Material:
- England & Wales: view extracts >>
- Approved Document B: Fire safety (Volume 1) (2019 edition incorporating 2020 and 2022 amendments) for England.
- Approved Document B: Fire safety (Volume 2) (2006 edition incorporating 2010, 2013, 2016, 2017 and 2020 amendments) for Wales.
- The Building Safety Act.
- Scotland: view extracts >>
- Building Standards Scotland Domestic Technical Handbook.
Rytons A1® Fire-rated Periscope® Underfloor Ventilators:
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Return Grille Single Air Brick
Return Grille Single Air Brick: 7,200mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Custom Periscope® top (refer to drawing dimension a).
Custom Periscope® bottom (refer to drawing dimension b).
Custom height (refer to drawing dimension c).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6087694.
Patent Approved.
Product Code: A1PUFVRGS.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Return Grille Single Air Brick Flanged
Return Grille Single Air Brick Flanged (15mm flange with corner screw holes): 7,200mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Custom Periscope® top (refer to drawing dimension a).
Custom Periscope® bottom (refer to drawing dimension b).
Custom height (refer to drawing dimension c).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6087695.
Patent Approved.
Product Code: A1PUFVRGSF.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Square Holed Single Air Brick
Square Holed Single Air Brick: 9,032mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Custom Periscope® top (refer to drawing dimension a).
Custom Periscope® bottom (refer to drawing dimension b).
Custom height (refer to drawing dimension c).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6087694.
Patent Approved.
Product Code: A1PUFVSQS.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Square Holed Single Air Brick Flanged
Square Holed Single Air Brick Flanged (15mm flange with corner screw holes): 9,032mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Custom Periscope® top (refer to drawing dimension a).
Custom Periscope® bottom (refer to drawing dimension b).
Custom height (refer to drawing dimension c).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6087695.
Patent Approved.
Product Code: A1PUFVSQSF.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with FlowRyt® Single Air Brick
FlowRyt® Single Air Brick: 8,000mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Custom Periscope® top (refer to drawing dimension a).
Custom Periscope® bottom (refer to drawing dimension b).
Custom height (refer to drawing dimension c).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6087694.
Patent Approved.
Product Code: A1PUFVFRS.
Download Drawing. | Download Golden Thread.
Rytons A1® Fire-rated Periscope® Underfloor Ventilator with FlowRyt® Single Air Brick Flanged
FlowRyt® Single Air Brick Flanged (15mm flange with corner screw holes): 8,000mm² free area.
Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0.
Custom Periscope® top (refer to drawing dimension a).
Custom Periscope® bottom (refer to drawing dimension b).
Custom height (refer to drawing dimension c).
Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps.
Registered Design 6087695.
Patent Approved.
Product Code: A1PUFVFRSF.
Download Drawing. | Download Golden Thread.
NBS Source Specifications:
Rytons is proud to be a family run business and British manufacturer since 1972
Pressure Loss Data
Golden Thread
