U4 – Wrapping (exterior thermal insulation)

Knowledge

Trainees know …

wrapping and retrofitting, the different methods and techniques.
about requirements for wrapping technique. i.e.: existing walls must be sound and dry, bales lifted from ground (for example on insulated plinth wall), sufficient roof overhang, window detailing (light, airtightness, thermal bridges, weather detailing…) [Level 4]
the advantages and disadvantages of different wrapping methods and techniques.
the tools and machines used in the straw bale construction sites.
the possible dangers, the safe working practices, accident prevention regulations and security data sheets.
the specific straw bale requests on storing, logistics and knows how to protect the bales and the construction under different weather conditions.
how to read and implement plans for wrapping and retrofitting.
the great importance of good quality of straw bales.
how to adjust the bales to the required size and shape.
different fixing methods and its characteristics methods of compressing.
how to fill the gaps between the bales and how to prepare the exterior surface for plastering, cladding, etc.
have knowledge about the timetable linked with the costs. [Level 4]
how to describe the structural link and detailing between wrapping and existing wall to guarantee a lasting airtight compound between structure and wrapping

Skills

Trainees can …

check the condition of the existing construction. [Level 4]
handle the tools and machines which are used in the straw bale construction.
estimate the dangers linked with it and can avoid it.
tune the available danger regulations with the other partners (planner, developers, self builders etc.) in a way that the building site is safe.
apply the different wrapping and retrofitting methods.
resize and fix the bales and can make a solid wall by filling gaps.
make a time table and organize the work routines. [Level 4]
basic carpentry skills to make additional wooden construction.
make the plinth wall and the other details or to give the order to others to do it. [Level 4]

Competence

Trainees can …

agree with all partners in a way that the building site is safe.
organize the work on straw bale building site for wrapping and retrofitting and can integrate it with suitable work routines, tools and techniques. [Level 4]
explain different ways of wrapping and retrofitting and is able to select a suitable method for a specific situation and based on the corresponding advantages and disadvantages. [Level 4]
inspect and select good quality bales for wrapping and retrofitting. Trainee can control the general quality of the bales and realized constructions during the whole building process. [Level 4]
make the plinth wall, the other details and the airtightness or to give the order to other to do it.

Materials/Documents:
U4 Learning Outcome – Level 3 | ECVET credit points: 25
U4 Learning Outcome – Level 4 | ECVET credit points: 20