Loft Insulation U value Raised deck support Psi value (Calculator) G#14582

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Loft Insulation U value Raised deck support Psi value Calculator

GBE > Encyclopaedia > Files > Calculators > G#14582

Loft Insulation U value Raised deck support Psi value Calculator
About:


Calculator Purpose

  • Loft thermal insulation is often squashed down to the ceiling joists by possessions being stored in the loft
  • The thermal insulation performance is significantly reduced when squashed
  • Decking can be laid in the loft for possession storage above the insulation
  • If the decking is laid on the insulation it to too will squash the insulation down to ceiling joists and diminish its performance
  • The decking can be raised to a level above the insulation with a ventilation gap to avoid risk of condensation
  • Convention (Rule of thumb or Regulations) says 50 mm gap between insulation and deck is necessary
  • The deck needs to be raised on framing this is likely to pass through the thermal insulation
  • The framing passing through insulation will create either a thermal bridge or an air passage for heat losses
  • This calculator enables users to determine the heat loss due to legs or props or air gaps passing tough loft insulation
  • No insulation, inadequate thickness, current thickness and squashed insulation, softwood framing and proprietary framing can be compared
  • All permutations are included so a thorough analysis is possible
  • Depending upon you choice of materials, thicknesses, framing, etc. guidance is given on the results.
  • GBE Calculator LoftZoneStoreFloorUValue A05BRM100117 XLSX

© GBE NGS ASWS BrianMurphy aka BrianSpecMan
10th January 2016 – 24th March 2019

Loft Insulation U value Raised deck support Psi value Calculator
Images:


The Calculator

GBE Calculator LoftZoneStoreFloorUValue A05BRM100117 XLSX


GBE edited LoftZone StoreFloor CPD Cover PNG

Why we need this calculator


Loft Insulation U value Raised deck support Psi value Calculator

Loft Insulation U value Raised deck support Psi value Calculator

GBE Calculator LoftZoneStoreFloorUValue Summary A05BRM100117 PDF

The user interface dash-board


Loft Insulation U value Raised deck support Psi value Calculator

Loft Insulation U value Raised deck support Psi value Calculator

The inner workings


Loft Insulation U value Raised deck support Psi value Calculator

Loft Insulation U value Raised deck support Psi value Calculator

GBE Calculator LoftZoneStoreFloorUValue Others A05BRM100117 PDF

Other Standards


© GBE NGS ASWS BrianMurphy aka BrianSpecMan
10th January 2017 – 23rd March 2019

Loft Insulation U value Raised deck support Psi value Calculator
See Also:


GBE Calculators


GBE CPD


GBE Shop


By Others


GBE Jargon Buster

Initials, Abbreviations, Acronyms:

  • AECB
  • BRAD L
  • CfSH
  • CLR
  • PHPP
  • Psi
  • TS6
 Words or phrases:
  • Approved Document L
  • Building Energy Demand
  • Building Regulations Approved Documents L (BRADL)
  • Building U Value
  • CAPEM Compass
  • Carbon Lite
  • Carbon Lite Retrofit (CLR)
  • Design & Decision Tools
  • Element area U Value
  • Elemental Section U Value
  • Part L (BRADL)
  • Passivhaus
  • Peer Review
  • Psi value
  • RetScreen
  • Technical Standards
  • U value

GBE Links

  • AECB
  • WRAP
  • CarbonLite
  • Passivhaus
  • Planning Portal

GBE Manufacturer


GBE System


© GBE NGS ASWS BrianMurphy aka BrianSpecMan
10th January 2017 – 23rd March 2019

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