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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
For Your Every Summer RSVP, with Code: SUMMER15
Description
DUAL EXTENSION UNDERFLOOR VENT BLACKPacked: 1 Designed to provide a clear airflow passage to a void beneath an insulated suspended floor 8,000mm airflow Current and future requirements of Part L of the Building Regulations along with other standards and regulations have led to an increase in the depth of thermal insulation in suspended floors along with an increase in cavity widths to accommodate greater amounts of cavity wall insulation This has meant that clear access to an underfloor
Packed: 1
- Designed to provide a clear airflow passage to a void beneath an insulated suspended floor - 8,000mm² airflow
- Current and future requirements of Part L of the Building Regulations along with other standards and regulations have led to an increase in the depth of thermal insulation in suspended floors along with an increase in cavity widths to accommodate greater amounts of cavity wall insulation
- This has meant that clear access to an underfloor void may be as far as 6 or 7 brick courses (525mm) below the level of an airbrick and potentially as much as 350mm from the outer face of the external leaf - traditional telescopic underfloor ventilators would not be able to achieve this without the use of additional vertical and horizontal extension sleeves
- The dual extended underfloor vent offers vertical telescopic adjustment of between 5 and 8 brick courses (318mm-575mm) without the need for an extension sleeve
- The horizontal outlet is long enough to bridge through an overall wall thickness of 350mm without the need for an additional extension
- The front aperture is designed for use with a combination airbrick or it can be used in conjunction with a traditional clay airbrick, although this would reduce the overall airflow through the system
- Regulations - BRE Digest 17, BRE Digest 262, Building Regulations C4, NHBC Standards 5.2 and BS 5250:2011 Control of Condensation in Building
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Exchange/Return Notes
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4.6 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
So Gentle on Skin – Switched from Witch Hazel
I’m honestly obsessed with this. It’s incredibly soft and gentle on my skin, and I find myself reaching for it over everything else now.
I used to use witch hazel, but this is much less harsh and feels a lot more comfortable on my face. Since switching, my skin just feels calmer and more balanced.
I’ve officially made the switch—highly recommend if you’re looking for a gentler alternative to traditional toners.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Works well! I feel renewed
I won't share a video but I will tell you it works. Makes my face feel fresh and soft. Blackheads aren't gone but I think it will continue to improve my skin each time I use it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
★★★★★ 5
Risos
Me gusto lo recomiendo
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Reviewed in the United States on May 11, 2026
★★★★★ 1
Quality
This is hype. Does nit work as advertised.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Awesome!
This product works wonderful but if I use it daily my skin breaks out. I recommend only using every 3-4 days or once a week. I follow with the rice toner as well before moisturizing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2025
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