Cavity collector
The Illustrated Guide to Renewable Technologies BG 1/2008, By Kevin Pennycook, published by BSRIA in March 2008, states: ‘In a cavity collector, heated air from a collector is circulated through the cavities in the building envelope. The buffer of heated air reduces the heat loss through the building envelope and in turn reduces the demand for space heating. In addition, occupant comfort conditions can be improved because of the higher temperature of the building fabric. The higher temperature also reduces the occurrence and magnitude of cold down-draughts along with reduced radiant heat transfer from the occupant to the wall surface. The collectors can operate at a high efficiency because the air returned to them is relatively cool.’
--BSRIA
[edit] Related articles on Designing Buildings
Featured articles and news
A threat to the creativity that makes London special.
How can digital twins boost profitability within construction?
A brief description of a smart construction dashboard, collecting as-built data, as a s site changes forming an accurate digital twin.
Unlocking surplus public defence land and more to speed up the delivery of housing.
The Planning and Infrastructure bill oulined
With reactions from IHBC and others on its potential impacts.
Farnborough College Unveils its Half-house for Sustainable Construction Training.
Spring Statement 2025 with reactions from industry
Confirming previously announced funding, and welfare changes amid adjusted growth forecast.
Scottish Government responds to Grenfell report
As fund for unsafe cladding assessments is launched.
CLC and BSR process map for HRB approvals
One of the initial outputs of their weekly BSR meetings.
Architects Academy at an insulation manufacturing facility
Programme of technical engagement for aspiring designers.
Building Safety Levy technical consultation response
Details of the planned levy now due in 2026.
Great British Energy install solar on school and NHS sites
200 schools and 200 NHS sites to get solar systems, as first project of the newly formed government initiative.
600 million for 60,000 more skilled construction workers
Announced by Treasury ahead of the Spring Statement.
The restoration of the novelist’s birthplace in Eastwood.
Life Critical Fire Safety External Wall System LCFS EWS
Breaking down what is meant by this now often used term.
PAC report on the Remediation of Dangerous Cladding
Recommendations on workforce, transparency, support, insurance, funding, fraud and mismanagement.
New towns, expanded settlements and housing delivery
Modular inquiry asks if new towns and expanded settlements are an effective means of delivering housing.