Logistics could also be affected.

Increased capital cost: The additional construction capital cost can vary from 8% in the most optimistic scenarios (Passivhaus Construction Costs – October 2019) up to 25%..Increased programme: Delivering a Passivhaus building can take longer.

Quality control on site is extremely important, strategies for airtightness require careful sequencing and interim testing and workmanship skills need to be of the highest quality..Skill shortage and understanding.There is a lack of large-scale builders who can deliver Passivhaus buildings.

These projects can be seen as bespoke and are more expensive.. Bryden Wood’ response to Passivhaus’ challenges.Bryden Wood is an industry leader in the adoption of Platforms-based Design for Manufacture and Assembly (P-DfMA) and has always shown a keen interest in the adoption of the newest and more advanced sustainability certification schemes, such as Passivhaus.. Our experience indicates that the standardisation process of P-DfMA, can be a suitable approach to counterbalance Passivhaus’ challenges described above, as follows:.

Reduced design cost and complexity:.

The standardisation process reduces the number of construction elements which in turn dramatically reduces the number of elements and potential thermal bridges, making the design simpler and more cost-effective.sustainable construction industry:.

Reduced waste from construction projects.Reduced depletion of natural resources.

Increased lifespan of buildings.Retaining the value of materials and building assets.. Design strategies for sustainable solutions in construction.