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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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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4.6 ★★★★★
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Product Reviews
★★★★★ 1
Don't buy school books from Amazon
Format: Paperback
Thought I bought new, book came with an obsurd "Amazon Rentals" sticker on it. Looks used and abused. Will not be buying books needed for school from Amazon ever again.
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Reviewed in the United States on March 6, 2021
★★★★★ 4
A great academic primer
Format: Paperback
I found this to a great source for looking up details on how the IC defines the types of data it gathers. It's not necessarily a straight-read type of title, but I do keep it by my sofa, when reading the daily paper. It helps to better understand the viability of such things like the use of patrol planes along the Arabian Gulf borders or how the raw data of the Steele Dossier helps inform the decision makers, for example.
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Reviewed in the United States on August 4, 2019
★★★★★ 1
MONKEYBUSINESS BOOK
Format: Paperback
Get a clue. You shop out your sources like a monkey in a candy store.
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Reviewed in the United States on October 7, 2017
★★★★★ 5
Affordable
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-20
Good oil
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Great choice for your older Vehicle.
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-30
Trusted and put to use many times with my 2006 Pontiac G6. I have over 140,000 miles on her and she is still reliable and running great.
I love the fact that it also helps clean away the built up grime etc. in the Engine
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Reviewed in the United States on March 25, 2026