[vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column width=”1\/2″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_single_image image=”48440″ img_size=”full” alignment=”center” style=”vc_box_rounded” css=””][\/vc_column][vc_column width=”1\/2″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text css=””]<\/p>\n
[\/vc_column_text][vc_column_text css=””]<\/p>\n
[\/vc_column_text][vc_column_text css=””]<\/p>\n
Ensuring the correct specification and installation of sub-floor ventilation has become more complex as building regulations continue to evolve. Specifiers and contractors must now balance effective airflow beneath suspended floors with stricter fire safety requirements.<\/p>\n
Failure to provide adequate ventilation can lead to moisture build-up, condensation, mould growth and long-term structural damage. However, it is no longer a one-size-fits-all approach, with different building heights and boundary conditions requiring specific ventilation solutions to meet Approved Document B<\/a> requirements.<\/p>\n Below, we have outlined the current requirements for sub-floor ventilation across a range of residential applications, from standard house builds to high-rise developments. We also highlight compliant ventilation options designed to deliver reliable airflow performance while meeting current fire classification standards.<\/p>\n [\/vc_column_text][vc_btn title=”BOOKMARK our FREE sub-floor ventilation calculator” color=”black” size=”lg” align=”center” i_icon_fontawesome=”far fa-bookmark” css=”” add_icon=”true” link=”url:https%3A%2F%2Frts.vents.co.uk%2Fblog%2Fregulations-underfloor-ventilation-in-england-wales%2F|target:_blank”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column width=”1\/4″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_single_image image=”48443″ img_size=”full” style=”vc_box_rounded” onclick=”img_link_large” img_link_target=”_blank” css=””][\/vc_column][vc_column width=”3\/4″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text css=””]Residential buildings over 18m high<\/strong>[\/vc_column_text][vc_column_text css=””]For high-rise developments, sub-floor ventilators must meet the requirements of European classification A1 or A2-s1, d0. Rytons A1\u00ae Fire-Rated Periscope\u00ae Underfloor Ventilator<\/a> offers a fully compliant solution. Made from non-combustible galvanised steel, this system is custom-made to suit the specific requirements of each project and is available with a choice of six compatible air brick options for design flexibility. Each air brick is also available powder-coated to A2 classification in any RAL Classic colour, providing a durable, approved finish that blends in with surrounding brickwork or cladding.[\/vc_column_text][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column width=”1\/4″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_single_image image=”46017″ img_size=”full” style=”vc_box_rounded” onclick=”img_link_large” img_link_target=”_blank” css=””][\/vc_column][vc_column width=”3\/4″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text css=””]Standard residential house builds<\/strong>[\/vc_column_text][vc_column_text css=””]Plastic underfloor ventilators remain a trusted option for standard low-rise residential construction. The Rytons Periscope\u00ae Underfloor Ventilator<\/a>, when combined with Rytons Multifix\u00ae Air Brick<\/a>, provides excellent airflow performance, ensuring effective and consistent underfloor ventilation for both block and beam and timber floors. Recognised as one of the most durable air bricks on the market, the Multifix\u00ae is available in seven colour options to complement a wide range of brickwork finishes.<\/p>\n Please note that there are exceptions for walls located within 1 metre of a relevant boundary – see below.[\/vc_column_text][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column width=”1\/4″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_single_image image=”46016″ img_size=”full” style=”vc_box_rounded” onclick=”img_link_large” img_link_target=”_blank” css=””][\/vc_column][vc_column width=”3\/4″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text css=””]Residential buildings 11m to 18m high<\/strong> [\/vc_column_text][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_btn title=”BOOKMARK our FREE sub-floor ventilation calculator” color=”black” size=”lg” align=”center” i_icon_fontawesome=”far fa-bookmark” css=”” add_icon=”true” link=”url:https%3A%2F%2Frts.vents.co.uk%2Fblog%2Fregulations-underfloor-ventilation-in-england-wales%2F|target:_blank”][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text css=””]Should you have any queries or require further information regarding Rytons Periscope\u00ae Underfloor Ventilator Range, please do not hesitate to call our technical sales office on 01536 511874<\/strong> or email admin@rytons.com<\/a>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_single_image image=”33010″ img_size=”medium” alignment=”center” css=””][vc_single_image image=”29171″ img_size=”500×37″ alignment=”center” css=””][\/vc_column][\/vc_row][vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted” rt_padding_top=”0″][vc_column rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll” css=”.vc_custom_1743006334435{padding-top: 20px !important;padding-bottom: 20px !important;background-color: #DD3333 !important;}”][vc_column_text css=””]<\/p>\n [\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":" [vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column width=”1\/2″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_single_image image=”48440″ img_size=”full” alignment=”center” style=”vc_box_rounded” css=””][\/vc_column][vc_column width=”1\/2″ rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”][vc_column_text css=””] Sub-floor Ventilation [\/vc_column_text][vc_column_text css=””] Increasingly […]<\/p>\n","protected":false},"author":2,"featured_media":46027,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"footnotes":""},"categories":[352,96,454],"tags":[547,548,549,550,393,551,552,553,554,555,148],"class_list":["post-46001","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a1-fire-rated-news","category-cavity-underfloor-ventilation-news","category-product-of-the-month","tag-a1-fire-rated","tag-a1-periscope-ventilator","tag-block-and-beam-floor-ventilation","tag-fire-rated-air-bricks","tag-fire-safe-ventilation","tag-moisture-control","tag-non-combustible-ventilation","tag-periscope-ventilator","tag-sub-floor-ventilator","tag-timber-floor-ventilation","tag-underfloor-ventilation"],"acf":[],"_links":{"self":[{"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/posts\/46001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=46001"}],"version-history":[{"count":22,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/posts\/46001\/revisions"}],"predecessor-version":[{"id":48437,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/posts\/46001\/revisions\/48437"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/media\/46027"}],"wp:attachment":[{"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=46001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=46001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rts.vents.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=46001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nResidential buildings under 11m where external walls are within 1m of the relevant boundary<\/strong>[\/vc_column_text][vc_column_text css=””]Buildings between 11 and 18 metres in height – and those under 11 metres where external walls are within 1 metre of a relevant boundary – fall into a distinct regulatory category. In these situations, metal air bricks must be specified in place of plastic to comply with fire performance standards of the external wall. Rytons offers a compliant hybrid solution: Rytons A1\u00ae Fire-rated Metal Air Brick for PUFV<\/a>, in conjunction with the Rytons Periscope\u00ae Underfloor Ventilator<\/a>. Manufactured from non-combustible galvanised steel, these air bricks are available in four design options and come powder-coated to A2 fire standards in any RAL Classic colour.<\/p>\nRytons is proud to be a family run business and \u0003British manufacturer since 1972<\/span><\/h6>\n