Greener design technology for any part of a home always seems to make for noteworthy news on Construction Dive. This week, the big item was about roof developments.

As always, we are here to brighten up your Friday and try to get you caught up on what's been going on over the past seven days by collecting the most widely read news posts in our news feed. Here they are:

• U.S. lab devises a roof design with greater summer and winter efficiency—Scientists say tests show the design, with a passive ventilation system, improves heating and cooling performance.
• Builders need new thinking to catch the wave of a new housing market—Housing seems to be coming back, but it's not what it was before, and builders cannot simply staff back up.
• Lower construction unemployment laid to fewer seekers, not many more jobs—The unemployment rate for the construction industry is down in the latest report, but not because hiring has surged.
• 2,000 houses later, Darling Homes is done in Dallas-area tract—Darling Homes, the project of three brothers, got its start at Stonebridge Ranch in 1987.
• Investors will be looking for foreclosure repairs as they buy in bulk—Deep-pocket investors are muscling into foreclosure auctions, snapping up dozens of houses at a time.

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