||Sealing Wire and Plumbing Penetrations
Even these small holes can add up to serious energy losses in the average home. See what sealants work best, and learn some good tips in for plugging them up tight.
||Sealing a Ceiling Electrical Box
Even though light fixtures fasten tight to the ceiling, there's enough of a gap to let air flow through the many holes in a typical electrical box.
||Sealing Wall Intersections
Conditioned air moving through light switches and other wall penetrations can find its way into the attic too. Seal where the drywall meets the top plates to solve this problem.
||Bonus: Materials Overview
Get a quick review of the most common sealants — plus a few uncommon options — for sealing up holes big and small.
It's a good idea to keep all ducts in conditioned space, but if you can't, you should at least stop them from pulling dirty air from your attic into your living space.
||Sealing Soffits and Chases
Soffits and other large ceiling penetrations are essentially unintentional air ducts. Learn how to fit and seal foam to close up even the biggest holes in your attic.
||Better Insulation Ventilation in Rafter Bays
See two ways to keep air flowing from your soffit vents to your vented attic if you're planning to add blown-in insulation between your ceiling joists.
||Improving Attic Knee-Wall Insulation
Learn how to enclose the back side of a knee wall with an air barrier to make batt insulation perform better.
Mike Guertin has been a Fine Homebuilding contributing editor since 1996. A builder and remodeler from East Greenwich, R.I., Mike is constantly testing new ideas and writing about his experience to help make our homes better and our jobs easier.
FURTHER RESOURCES ON FineHomebuilding.com
VIDEO: Adding Blown-In Fiberglass Insulation
Less dusty than cellulose, blown-in fiberglass increases R-value and installs quickly
Airtight Attic Access
Making Sense of Caulks and Sealants
Hot air rises. And where does it go? It could be going right out the attic access in your house.
Today's products adhere better, stretch farther, and last longer, but choosing the best one is harder than ever
Does Fiberglass Still Make Sense?
Maybe, but other types of insulation offer installation advantages that make them more reliable
The Inspector Game:
Find out how long it will take to payback your investment in terms of savings in energy costs.
Spray-foam Slip Ups
Find ways to improve prep, process, and personal protection, for this insulation installation
FROM GREEN BUILDING ADVISOR
Air Leaks Waste Energy and Rot Houses
One third of the energy you pay for probably leaks through holes in your house. Air leaks can also cause moisture and indoor air quality problems.
Batts, blown-in, spray foam, or rigid foam — the right choice depends on the job at hand.
Air-Sealing Tapes and Gaskets
Which products stay sticky and flexible?
Sealing Ducts: What’s Better, Tape or Mastic?
Make sure you choose products that provide durable sealing
Insulate and Weatherize
In this completely revised and expanded edition, the advances in science and technology shine brightly to walk homeowners through the many solutions for basic energy, air-flow problems, heating and cooling systems, appliances and lights, mixed climate issues, and alternative energy strategies that are doable and extremely efficient
Buy the book
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