– Jeannie begins by cutting two shims for extra support, but decides to hammer in her screws. Being unable to secure them, she decides to remove them. She declares herself done after wedging her piece in and applying plaster liberally. Yardwork Challenge: Shingling The nominees must work together to shingle the roof of the shed right outside the Handyman Rehabilitation Centre in 90 minutes. Shingles and roofing nails are provided, and instructions are provided on the shingle packages themselves. For safety reasons, the crew insists that only two people are to be on the roof at any given time. The roof has already been tar-papered prior to the challenge. The team begins by not nominating someone to be in charge. Merle begins right away on the roof with the nails while Darryl and Barry deliver the shingles to the roof. While Merle and Barry argue on which way the shingles should be facing, Jeannie offers to read the instructions aloud to the rest, but the instructions she reads are for a flat roof and the shed is a peaked roof and the others ignore her. Merle convinces Barry that his way of aligning and nailing the shingles (in blocks rather than in rows) is correct (which it is not), but Barry continues to attach the shingles upside-down. Eventually the upside-down shingles were removed and replaced. Soon, work begins on both sides of the roof-- Merle and Jeannie together on one side (with Darryl on the roof), while Barry, Keith and Merle work on the other (with Merle on the roof). On Jeannie's end, the shingles are laid out in courses, but the shingles themselves do not overlap, prompting Merle to make a quick patchwork fix. The effect of the block-by-block shingling on the other side leads to a very bumpy roof, which, as Greg notices, would easily fall apart if a strong enough gust of wind hit the roof. The rule that two people were to be on the roof at any time was quickly broken when Barry decides to go on the roof himself ("we didn't build it so it's gotta be safe" is his rationale), leading to Keith also joining Darryl and Merle on the roof. Keith mainly went up to the roof to tell the others how to shingle a roof with a valley, which the roof of the shed has none, but which Keith insists that