The Home Improvement Minute · Energy & Attic

Home Energy Efficiency, Zone by Zone

Home energy efficiency comes down to one question: where is your heat going? In winter it escapes through the attic, the walls, and the windows. In summer it pushes back in through the same places. Drafts, uneven rooms, and rising bills are usually the first signs.

This is where we explain each of those zones in plain language: attic ventilation, insulation, insulated siding, replacement windows, and the glass science inside them. Pick a zone below to see why it matters, a quick check you can do yourself, and the guides that go deeper. They’re written by the Thrush family, who have been making Miami Valley homes more comfortable since 1960.

15%average heating and cooling savings from air sealing and insulating
9 in 10U.S. homes are under-insulated

Source: ENERGY STAR.

Home energy efficiency starts in the attic: soffit intake vents, ridge ventilation, and balanced airflow in a residential roof
Cool Hot
Scan your home: pick a zone
Zone 01

Attic & Ventilation

Heat rises into the attic all winter and bakes there all summer. Balanced intake and exhaust keep that heat moving out instead of soaking into the house and the roof deck.

Quick checkLook for daylight at the soffits from inside the attic. Insulation should stop short of the vents, held back by baffles.
Zone 02

Insulation

Insulation slows heat on its way out in winter and on its way in during summer. ENERGY STAR estimates that air sealing and insulating can save an average of 15% on heating and cooling costs.

Quick checkMeasure attic depth in a few spots. In our climate zone, ENERGY STAR recommends R60 for an uninsulated attic, or R49 if you already have three to four inches.
Zone 03

Walls & Siding

Wall studs carry heat straight through the insulation between them. Insulated siding wraps the whole wall in a continuous layer, studs included.

Quick checkOn a cold day, notice whether rooms on outside walls feel colder than inside rooms. That pattern often points to the walls.
Zone 04

Windows

Older windows let heat slip through the glass, the frame, and every gap around the sash. The right replacement depends on the label numbers, the frame, and how the window opens.

Quick checkHold your hand near the sash on a windy day. A draft you can feel is energy you’re paying for.
Zone 05

Glass Science

The glass package does most of a window’s work. Coatings, gas fills, and spacers decide how much heat passes through and whether the edge of the glass fogs.

Quick checkCheck the NFRC label on new windows: a lower U-factor means the whole window loses less heat.

More Home Energy Efficiency Reading: Roof & Savings

Roof color and energy efficiency What still saves money now that the tax credit has ended Halloween tips and energy savings What a green city could look like

Ready to find out where your home is losing energy? Schedule a consultation or call 937-833-5136. Every post in this category is listed below.