Sommerfield One Off House (Brainstorm) G#760 N#782

GBE > Projects > Building Case Study > Brainstorm > G#760 N#782

Sommerfield One Off House Brainstorm

Sommerfield One Off House Brainstorm
About: 

Date: 14th December 2012

Architects: LBR, Near Norwich

Client: Science Fiction Writer, very hands on, carrying out own energy calculations (using his own thermo dynamic calculation system, very impressive) and detailing to avoid thermal bridging.

Scope:

• Review of Client’s CD of documents, detail solutions, statements,
• Brainstorm with Architect and Client.
• Proposals on materials, products, methods of construction, procurement, etc.

GBE Proposals:

• MMC using SIPS suggested as replacement for inner leaf and cavity wall insulation
• MMC using SIPS suggested in place of masonry and UK industry workmanship
• MMC using ISPS suggested in place of cut timber roof, but with added decrement delay insulation
• Decrement delay calculations to be considered over U value alone
• Dense wood fibre thermal insulation with acoustic performance in roof
• Breathing construction with ATLs and WTLs in timber construction
• Passivhaus standard windows and doors

Follow Up:

• GBE to create and provide a decrement delay calculation, material data and research paper
• CIBSE magazine
  • January 2013  pages 70-73

• Research paper
  • 0360-1323/$ – see front matter r 2005 Elsevier Ltd. All rights reserved
  • doi:10.1016/j.buildenv.2005.02.020
  • Tel.: +90462 3772965; fax: +90462 3255526.
  • E-mail addresses: asan@ktu.edu.tr, habipasan@hotmail.com
    
• Numerical computation of time lags and decrement factors for different building materials PDF
• GBE Calculators
• GBE has converted this information into an excel file.

Articles

• http://www.irishecohomes.ie/index.php?page=decrement-delay
• http://www.viking-house.us/decrement-delay.html
• http://www.greenspec.co.uk/building-design/decrement-delay/

Standards

• EN ISO 13786:2007
• CIBSE (2005) Guide A: Environmental design

Calculating decrement delay

• The response of construction elements to periodic cycles in temperature and heat gain can be quantified by using the thermal admittance framework as described in EN ISO 13786:2007. The framework also provides the basis for the CIBSE ‘Simple Dynamic Model’ for calculating cooling loads and summertime space temperatures (CIBSE (2005) Guide A: Environmental design).
• Manually calculating thermal response simulations is not for the faint hearted, but a number of programs are available to take the load – notably the freely available, Excel spreadsheet based ‘Dynamic Thermal Properties Calculator’ developed by Arups and distributed by the Concrete Centre.
  • However it is deficient of high decrement delay thermal insulation mateirials
  • So you assume timber frame cannot compete with masonry or concrete construction
  • But with the right insulation materials they can
• CAP’EM Compass LCA Functional Unit calculator.

Contacts:

• Bury St Edmonds West Suffolk college Green Building exhibition space to visit for Client
• Sean Jefferies, sean.jeffries@wsc.ac.uk

• Gerry Harrold Architect re. building in monitoring equipment
• http://www.ukearthshelteredbuildingphd.co.uk

• Supplier of Dense Wood Fibre:
• http://www.natural-building.co.uk
• http://www.ecologicalbuildingsystems.com
• Many others listed in Barn Conversion Thermal Insulation (Brainstorm) See top right column

• SIPS manufacturer
• SIPFIT Ltd.

© GBE NGS ASWS BrianSpecMan aka Brian Murphy
30^th December 2012 – 29th January 2017

Sommerfield One Off House Brainstorm
Images:

© GBE NGS ASWS BrianSpecMan aka Brian Murphy
18th December 2012 – 29th January 2017

Sommerfield One Off House Brainstorm
See Also:

GBE Files

• GBE Case Study Sommerfield Working PDF (this page content)
• GBE Case Study Sommerfield A03 BRM 010313 DOCX (this page content)

GBE Brainstorms

• Stone Barn Conversion Thermal Insulation (BrainStorm) Q#14897

GBE Jargon Buster

Initials Abbreviations Acronyms

• ATL
• ISPS
• MMC
• SIPS
• WTL

Words and Phrases

• Decrement Delay
• Dense wood fibre insulation
• Insulated Structural Panel System (ISPS)
• Modern methods of Construction (MMC)
• Passivhaus standard windows
• Structural Insulated Panel Systems (SIPS)
• U value
• Wind Tightness Layer (WTL)

GBE Information

• RESEARCH PAPER
• MAGAZINE EXTRACT

GBE Projects Information

• CAP’EM

GBE Calculator

• Decrement Delay/Factor Calculator
• ‘Dynamic Thermal Properties Calculator’ developed by Arups and distributed by the Concrete Centre.
• But it is deficient of the insulating materials that have the decrement delay factor, so misleading and unhelpful

© GBE NGS ASWS BrianSpecMan aka Brian Murphy
21st February 2013 – 29th January 2017