Is it time to raise the roof? Or at least put a new one on your home and put it up for sale? In yet another sign the housing recovery might indeed be underway, existing home sales were better-than-expected in June sending shares of homebuilders into the green Thursday morning. The National Association of Realtors reported sales of previously occupied homes rose 3.6% in June to 4.89 million. Analysts had expected sales of 4.84 million units. This is the second day homebuilders saw some gains. On Wednesday, NVR's better-than-expected earnings report drove up the sector. Shares of Toll Brothers ( TOL) jumped 3% to $18.45, NVR grew 3% to $601.47, Pulte Homes ( PHM) rose 4.5% to $9.79, KB Home ( KBH) increased 6% to $15.89, Lennar ( LEN) spiked 6% to $11.27 and Centex ( CTX) shot up 5% t5o $9.49.