Insulation over sarking boards.
Tiles on battens and counterbattens
22mm Isolair
80mm Pavatherm
19mm softwood sarking boards
Advantages:
Improved thermal and acoustic performance against over-heating and outside noise compared with conventional solutions
Fully vapour permeable construction without the use of membranes or vented cavities - no risk of interstitial condensation or rot
Simple and robust construction with few skilled operations
Materials are non-toxic, non-irritant and easy to handle for installers with zero emissions once installed
Construction has low embodied energy, low CO2 emissions in manufacture and waste can be composted.
Design Options:
Add airtightness paper over sarking boards Necessary if boards are ill-fitting