Secure pipelines of work are crucial for the future establishment of offsite construction, Osborne CEO Andy Steele has said.
And he said that in a factory with fixed machine and building costs, the industry needs "a factory line mentality".
"We do a lot of schools. If you're producing a secondary school and suddenly the Treasury doesn't sign it off for two or three months, suddenly the factory has a hole in its books.
"That's the biggest issue, getting the regularity of workflow through the factory. That brings us back to the viability of the factory and the investment into technology and innovation."
He said that the benefits of offsite could be significant, drastically cutting times on projects and reducing their environmental impacts, and that success would lead to more success in use of the technology by enabling more investment into innovation.
"It's all about the investment into the offsite we can afford. The only reason that we can afford to is that we're private company and so we can afford to have a longer term outcome.
But he cautioned that the "fragmented industry" leads to "duplication of innovation".
"The number of manufacturing companies springing up at the moment when you look at housing and education it's not going to deliver a huge amount against the demands of industry," he added.
Mr Steele acknowledged that offsite was not really on the government's radar, adding: "Construction not on government's radar at all. We need government to step back and look at what is fundamentally a key industry, especially in the new world, post-Brexit.
"We need, we need strong infrastructure projects we need we need a strong social infrastructure."