Rytons A1® Fire-rated Periscope® Underfloor Ventilator with Single Air Brick

General Details

Features and Benefits:

  • A tailor-made metal ‘Z’ shape Periscope® sub-floor ventilator.
  • Made from Class A1 fire-rated galvanised steel and compliant with regulations for the requirement of non-combustible materials in the external walls of high-rise buildings over 18m (11m in Scotland) and those 11m and above undergoing unsafe cladding remediation work.
  • Three air brick grille styles satisfy the varying design, airflow, and vent placement requirements of buildings.  For cladding, flanged options cover cut edges to maintain the external appearance.
  • Custom powder coated air brick.  Choose from the RAL Classic colour chart in matt, semi-gloss or gloss finish (achieving Class A2-s1, d0) for an air brick that matches cladding or brickwork.  Signature architectural coatings 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.
  • Telescopic fitting air brick gives flexibility to handle minor variations in the external façade.
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  • 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.  The material remains robust at elevated temperatures and has a high melting point temperature of 1450-1520° C.  Classification: A1.  Definition: Non-combustible.  Description: No contribution to fire.

Reference Material:

  • Building Regulation 7(2) – Ban of combustible materials in the external wall of buildings.
  • Building Regulation Approved Document B (fire safety).
  • Building standards Scotland technical handbook – domestic (2.7).

Specifications:

  • If you can’t see a Periscope® that meets your requirements, we offer a bespoke service to design, fabricate and supply the perfect solution.  To discuss your requirements, call our technical sales office on 01536 511874 or email admin@rytons.com.

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.
Product Code: A1PUFVRGS.
Download Drawing.

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.
Product Code: A1PUFVRGSF.
Download Drawing.

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.
Product Code: A1PUFVSQS.
Download Drawing.

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.
Product Code: A1PUFVSQSF.
Download Drawing.

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.
Product Code: A1PUFVFRS.
Download Drawing.

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.
Product Code: A1PUFVFRSF.
Download Drawing.

NBS Specifications:

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