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Breathing Sheathing Board (Jargon Buster) G#10046

By 14 February 2016January 13th, 2024Code, Encyclopaedia, Entries, Jargon Buster, Words Phrases
Dense Wood Fibre Board; Breathing Sheathing Board; Energy and Acoustic Measures Q&A

Breathing Sheathing Board Jargon Buster

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Breathing Sheathing Board Jargon Buster

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Breathing Sheathing Board Jargon Buster
1 Definitions


Breathing Sheathing Board

Breathable Sheathing Board


A board which is vapour permeable enough to allow it to be used externally in timber frame construction.
(GreenSpec AEP ’09)


Used in Breathing wall and breathing roof construction outside of the insulation layer and inside the weather protection
(NGS BRM ‘10)

  • Breathing is misleading: its not about air movement, its about moisture vapour movement
  • Sheathing: boarding that is fixed to the face of framing, light timber frame in particular, enclosing the framing in readiness for following trades.
  • Thermally Insulating: some sheathing boards can also be thermally insulating by conduction and radiation and dense enough to prevent heat transfer by convection.
  • Acoustically Insulating: airtight breathing sheathing can also be an acoustic barrier reducing noise transfer inwards or outwards
  • Rigid Insulation:
    • a term applied to plastic insulation boards often fixed to timber or steel framed construction and spanning over the framing;
    • the term can also be applied to breathing sheathing boards, but depending upon the materials can have significantly different properties and can be incompetent or competent in their role.
  • Racking strength: Some sheathing boards have strength in compression and tension and some can resist diagonal forces, a framed construction with sheathing boards attached to one or both faces, with a force applied on one corner could be distorted into multiple parallelograms; racking strength boards will resist this distortion.
  • Stressed Skin: sheathing with racking strength can become part of the structure of a building where the frame and the sheathing work together as a whole to reinforce each other and can resist compression, tension, shear, torsion, racking, etc.
  • Materials:
    • most timber panel products can be sheathing;
    • most timber panels products are not breathing;
    • some OSB with low adhesive can be moisture permeable;
    • dense wood fibre boards are most often breathing and rigid
  • See Also: Breathing, Breathing wall, EVT, Enhanced Vapour Transfer, Racking Strength, Sheathing, Stressed Skin, Vapour Open, Vapour Closed

(GBE BRM ’24)


© GBE GBC GRC GBL NGS ASWS Brian Murphy aka BrianSpecMan ****
18th January 2016 – 13th January 2024

Breathing Sheathing Board, Breathable Sheathing Board
2 Images/Icons



© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Jargon
3 Relevance to Environmental Construction


 


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Jargon
4 Opinion


 


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Jargon
5 Examples


 


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Jargon
6 Notes


 


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Breathing Sheathing Board Jargon Buster
7 Sources


  • GreenSpec AEP ’09
  • NGS BRM ’09-‘12
  • GBE BRM ’24

© GBE GBC GRC GBL NGS ASWS Brian Murphy aka BrianSpecMan ****
18th January 2016 – 13th January 2014

Breathing Sheathing Board, Breathable Sheathing Board
9 Checklists


GBE Checklist

G#606 N#627 GBE New Build Checklist Navigation

G#730 N#752: GBE EBC Checklist Refurbishment

G#1253 N#1252: GBE EBC Checklist Refurbishment Decent Homes

G#1438 N#1408 GBE Home Improvement Index


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016 – 14th February 2016

Breathing Sheathing Board, Breathable Sheathing Board
10 Q and A


GBE Q&A


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016 – 14th February 2016

Jargon
11 Defects/Solutions


GBE Defects

  • External Wall Insulation: Insulation with Rendered Finish
  • GreenDeal & ECO failings

GBE Solutions


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Breathing Sheathing Board (Jargon Buster)
12 CPD/Lectures


GBE CPD

Theme

Handouts PDF 9 slides/page for printing

Seminars PDF for viewing


GBE Lectures

  • (21) Timber Frame (P) N#219
  • (21) Timber External Walls (P) N#218

© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016 – 14th February 2016

Jargon
15 Products


 


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016

Breathing Sheathing Board, Breathable Sheathing Board
16 Accessories


Enviroform Solutions Ltd.

Thermo-Pro Thermally insulated profiles for EWI (External wall insulation)


© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016 – 14th February 2016

Breathing Sheathing Board, Breathable Sheathing Board
17 Systems/Sub-systems


Enviroform Solutions Ltd.

GBE Sub-systems

  • EWI External Wall Insulation System by Enviroform Solutions Ltd.
    • External Wall & Walkway/Balcony/Roof Parapet Sides:
  • EWI External Wall Insulation System by others
    • Accessories by Enviroform Solutions Ltd. 
      • Renderline Superslim

© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016 – 14th February 2016

Breathing Sheathing Board, Breathable Sheathing Board
18 Issue Papers



© GBE NGS ASWS BrianMurphy
aka BrianSpecMan
18th January 2016 – 14th February 2016


© GBE GBC GRC GBL NGS ASWS Brian Murphy aka BrianSpecMan ****
17th January 2016 – 13th January 2024

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