Proper attic insulation is a game-changer for regulating home temperature and reducing energy bills. When soffit venting isn't part of the equation, insulation requires strategic adjustments to ...

A: Many new no-maintenance types of siding are available, and some have a layer of insulation already attached to the back. Adding insulation to the exterior is better than adding it inside the walls.

The standard these days for attic insulation is R-38. That translates into a full 12-inch thickness of blown in or batt insulation. But beefing up the insulation alone may not solve the problem.

Ask the Carpenter’s Rob Robillard offers tips on home maintenance and energy conservation. Get more home improvement advice at realestate.boston.com.