The builder's crew spent about a day assembling a frame to support the shrink-wrap film, which here has been draped over the work area but not yet stretched tight.
After being shrunk to its final size with high-output propane torches - a ticklish task carried out by an experienced abatement crew - the weatherproof and windproof cover remained in place for the duration of the six-week project. The debris chute visible at right was used by another contractor working in living space below.
The job involved removing the existing roof, cutting down and sistering existing rafters, putting down a new roof, and then constructing a floating deck structure that was finished flush with the original bedroom floor. Much of the work was accompanied by the sound of heavy rain drumming on the plastic cover.