Rytons A1 Fire-rated 150mm Dia. Ducting Kits with Triple Air Brick Grilles

General Details

Rytons A1 Fire-rated 150mm Dia. Ducting Kits with Triple Air Brick Grilles

  • A range of custom-made 150mm dia. galvanised steel spiral metal ducting kits with a choice of rectangular or round connector to suit HVAC and extract ducting 220mm x 90mm/150mm dia.
  • Choose from three styles of air brick to achieve the design, air flow and positioning requirements of the development.
  • Air brick supplied in your choice of RAL colour (achieving A2-s1, d0), to complement the façade and maintain the external appearance of the building.
  • New, improved air brick features discreet precautionary drainage holes, providing an outlet for any water ingress to prevent transfer into the ducting.
  • No on-site assembly required – each kit supplied as a single unit, with sealed joints, for easy handling, efficient installation, and trouble-free commissioning.
  • 100mm dia. and 125mm dia. ducting kits also available.
  • Suitable for use in high-rise buildings with a storey 18m or more above ground level to Regulation 7(2) and Building Regulations Approved Document B.
  • Suitable for use in buildings with a storey 11m or more above ground level to Building (Scotland) technical handbook 2019: domestic and non-domestic, 2.7.
  • Product considered fire class A1 without testing, as per European Commission paper 96/603/EC referred to in BS EN 13501-1:2018.
  • Material not compromised at a temperature of 800°C, as required by the Building Regulations Approved Document B for ductwork spanning the cavity.
  • Classification: A1.  Definition: Non-combustible.  Description: No contribution to fire.

Rytons A1 Fire-rated 150mm Dia. Ducting Kits with Triple Air Brick Grilles:

Rytons A1 Fire-rated Ducting Kit 150mm Dia. with Triple Return Grille
Triple Return Grille Air Brick. 28,800mm² free area.
Custom RAL colour grille in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Choice of two ducting connectors:
1) With connector for 220mm x 90mm ducting. Custom overall length (including fitted RD6FR plastic Flat Channel Horizontal Adaptor 205mm D). Note: Rytons recommend 250mm in addition to the measurement from the outer leaf to the inner leaf.
2) With connector for 150mm dia. ducting. Custom overall length (including fitted RD6CONN plastic Pipe Connector 62mm D). Note: Rytons recommend 100mm in addition to the measurement from the outer leaf to the inner leaf.
Properties: A1 fire-rated 0.9mm/0.5mm galvanised steel. Fire-rated RAL colour powder coating (achieving a test result of A2-s1, d0). Spot welded. Ever Build intumescent fire protection and acoustic sealant (product code FIREMATE) used on all gaps.
Registered Designs 6109956 and 6109957.
Product Code: A1DK150RGT.

Rytons A1 Fire-rated Ducting Kit 150mm Dia. with Triple Return Grille Flanged
Triple Return Grille Air Brick with 15mm flange and corner screw holes. 28,800mm² free area.
Custom RAL colour grille in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Choice of two ducting connectors:
1) With connector for 220mm x 90mm ducting. Custom overall length (including fitted RD6FR plastic Flat Channel Horizontal Adaptor 205mm D). Note: Rytons recommend 250mm in addition to the measurement from the outer leaf to the inner leaf.
2) With connector for 150mm dia. ducting. Custom overall length (including fitted RD6CONN plastic Pipe Connector 62mm D). Note: Rytons recommend 100mm in addition to the measurement from the outer leaf to the inner leaf.
Properties: A1 fire-rated 0.9mm/0.5mm galvanised steel. Fire-rated RAL colour powder coating (achieving a test result of A2-s1, d0). Spot welded. Ever Build intumescent fire protection and acoustic sealant (product code FIREMATE) used on all gaps.
Registered Designs 6109954 and 6109955.
Product Code: A1DK150RGTF.

Rytons A1 Fire-rated Ducting Kit 150mm Dia. with Triple Square Holed Grille
Triple Square Holed Air Brick. 27,096mm² free area.
Custom RAL colour in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Choice of two ducting connectors:
1) With connector for 220mm x 90mm ducting. Custom overall length (including fitted RD6FR plastic Flat Channel Horizontal Adaptor 205mm D). Note: Rytons recommend 250mm in addition to the measurement from the outer leaf to the inner leaf.
2) With connector for 150mm dia. ducting. Custom overall length (including fitted RD6CONN plastic Pipe Connector 62mm D). Note: Rytons recommend 100mm in addition to the measurement from the outer leaf to the inner leaf.
Properties: A1 fire-rated 0.9mm/0.5mm galvanised steel. Fire-rated RAL colour powder coating (achieving a test result of A2-s1, d0). Spot welded. Ever Build intumescent fire protection and acoustic sealant (product code FIREMATE) used on all gaps.
Registered Designs 6109956 and 6109957.
Product Code: A1DK150SQT.

Rytons A1 Fire-rated Ducting Kit 150mm Dia. with Triple Square Holed Grille Flanged
Triple Square Holed Air Brick with 15mm flange and corner screw holes. 27,096mm² free area.
Custom RAL colour in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Choice of two ducting connectors:
1) With connector for 220mm x 90mm ducting. Custom overall length (including fitted RD6FR plastic Flat Channel Horizontal Adaptor 205mm D). Note: Rytons recommend 250mm in addition to the measurement from the outer leaf to the inner leaf.
2) With connector for 150mm dia. ducting. Custom overall length (including fitted RD6CONN plastic Pipe Connector 62mm D). Note: Rytons recommend 100mm in addition to the measurement from the outer leaf to the inner leaf.
Properties: A1 fire-rated 0.9mm/0.5mm galvanised steel. Fire-rated RAL colour powder coating (achieving a test result of A2-s1, d0). Spot welded. Ever Build intumescent fire protection and acoustic sealant (product code FIREMATE) used on all gaps.
Registered Designs 6109954 and 6109955.
Product Code: A1DK150SQTF.

Rytons A1 Fire-rated Ducting Kit 150mm Dia. with Triple FlowRyt® Grille
Triple FlowRyt® Air Brick. 30,000mm² free area.
Custom RAL colour grille in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Choice of two ducting connectors:
1) With connector for 220mm x 90mm ducting. Custom overall length (including fitted RD6FR plastic Flat Channel Horizontal Adaptor 205mm D). Note: Rytons recommend 250mm in addition to the measurement from the outer leaf to the inner leaf.
2) With connector for 150mm dia. ducting. Custom overall length (including fitted RD6CONN plastic Pipe Connector 62mm D). Note: Rytons recommend 100mm in addition to the measurement from the outer leaf to the inner leaf.
Properties: A1 fire-rated 0.9mm/0.5mm galvanised steel. Fire-rated RAL colour powder coating (achieving a test result of A2-s1, d0). Spot welded. Ever Build intumescent fire protection and acoustic sealant (product code FIREMATE) used on all gaps.
Registered Designs 6109956 and 6109957.
Product Code: A1DK150FRT.

Rytons A1 Fire-rated Ducting Kit 150mm Dia. with Triple FlowRyt® Grille Flanged
Triple FlowRyt® Air Brick with 15mm flange and corner screw holes. 30,000mm² free area.
Custom RAL colour grille in matt, semi-gloss or gloss finish (achieving A2-s1, d0).
Choice of two ducting connectors:
1) With connector for 220mm x 90mm ducting. Custom overall length (including fitted RD6FR plastic Flat Channel Horizontal Adaptor 205mm D). Note: Rytons recommend 250mm in addition to the measurement from the outer leaf to the inner leaf.
2) With connector for 150mm dia. ducting. Custom overall length (including fitted RD6CONN plastic Pipe Connector 62mm D). Note: Rytons recommend 100mm in addition to the measurement from the outer leaf to the inner leaf.
Properties: A1 fire-rated 0.9mm/0.5mm galvanised steel. Fire-rated RAL colour powder coating (achieving a test result of A2-s1, d0). Spot welded. Ever Build intumescent fire protection and acoustic sealant (product code FIREMATE) used on all gaps.
Registered Designs 6109954 and 6109955.
Product Code: A1DK150FRTF.

Reference Material:

  • The Building Regulations Approved Document B (Fire safety) – Volume 1: Dwellings (2019 edition). Appendix B: Performance of materials, products and structures B4. NOTE: Regulation 7(2) limits components used in or on the external walls of certain buildings to materials achieving class A2-s1, d0 or class A1 (see Section 10). Assessments cannot be used to demonstrate compliance with this requirement.
  • The Building Regulations Approved Document B (Fire safety) – Volume 2: Buildings other than dwellings (2019 edition). Appendix B: Performance of materials, products and structures B4. NOTE: Regulation 7(2) limits components used in or on the external walls of certain buildings to materials achieving class A2-s1, d0 or class A1 (see Section 10). Assessments cannot be used to demonstrate compliance with this requirement.
  • Building (Scotland) technical handbook 2019: domestic. 2.7 Spread on external walls. 2.7.1 External wall cladding. Storey height more than 11m – Where the building has a storey at a height of more than 11m above the ground the external wall cladding system should be constructed of products achieving European Classification A1 or A2.

  • Building (Scotland) technical handbook 2019: non-domestic. 2.7 Spread on external walls. 2.7.2 Specified attachments. There is a risk of vertical fire spread from specified attachments to an external wall including balconies, solar panels and solar shading. Solar shading are devices attached to an external wall to reduce heat gain within a building by deflecting sunlight. Fire-fighters may not be able to apply a water jet from a fire-fighting hose directly onto a fire that has spread onto specified attachments high above the ground.
  • Where the building has a storey at a height of more than 11m above the ground, specified attachments should be constructed of products achieving European Classification A1 or A2.
  • Extracts from NHBC Technical Extra 25.
  • Page 14: Note: in most cases, a panel of the tested system wouldn’t contain all the components necessary to function as an external wall (for example, cavity trays, weep holes, etc.). Therefore, any additional components must achieve Class A1or A2-s1, d0.
  • Page 16: Minor components within or passing through an external wall: The aim of the regulation is to remove all combustible components from, or within, an external wall.  The majority of air bricks, weep holes, ventilation ducts, etc. can be produced from materials meeting Class A1 or A2-s1, d0, so products meeting these classifications should be used.