The This Old House TV crew gave a once drafty and underinsulated New England house a state-of-the-art efficiency makeover. Here are some money-saving upgrade ideas for your old house -From thisoldhouse.com
Upgrades That Slash Energy Costs
Sealing The Envelope
As with any home built before the days of insulation, house wrap, and double-pane windows, there'd be little point in installing high-efficiency HVAC equipment without first buttoning up the leaky exterior shell. TOH TV general contractor Tom Silva applied spray foam insulation, which yields slightly-better-than-code R-43 in the roof and R-21 in the walls. The foam, which requires professional installation, is about two to three times the cost of fiberglass batts but offers two to three times the effectiveness. And because it fills every crack and void, creates a vapor barrier, and won't settle over time, it eliminates drafts, too.
But a wall is only as airtight as its windows. Fixing the existing ones proved too expensive, so Tom replaced the rattly oldRead More »from Save Money with Upgrades that Slash Energy Costs