tag: insulation


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Researching Retrofit Technology in the Northwest

Researching Retrofit Technology in the Northwest

Using two identical, side-by-side homes as their laboratory, DOE researchers aim to measure the effectiveness of a variety of energy efficiency improvements

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Taking Aim at Californias Low-Carbon Target

Taking Aim at California's Low-Carbon Target

As the state prepares to cut greenhouse gas emissions 80% below 1990 levels over the next 38 years, scientists predict a mostly electric future

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Russias First Active House Gets a Test Drive

Russia's First "Active House" Gets a Test Drive

A Danish solar-panel company teams up with a Russian developer to build a home designed to showcase net-zero-energy performance

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How to Build a Perfect Wall

How to Build a 'Perfect Wall'

3 comments

Adding rigid foam insulation to the outside of the building reduces thermal bridging. Choosing the right insulation for the wall cavity is another question altogether

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Whats the Best Way of Insulating a Crawl Space?

What's the Best Way of Insulating a Crawl Space?

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A leaky crawl space can lower indoor air quality and make it harder to heat and cool a home. So what's the most effective way of dealing with the problem?

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Attic-Insulation Upgrade Takes a Wrong Step

Attic-Insulation Upgrade Takes a Wrong Step

4 comments

Installing cellulose insulation into my attic was easy and even fun--until a moment of carelessness changed the job from home improvement to home repair.

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Lawmaker Targets DOEs Weatherization Program

Lawmaker Targets DOE's Weatherization Program

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It's all part of Representative Chuck Fleischmann’s campaign to stop "green initiative abuse"

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Insulating a Maine Roof with Dense-Pack Cellulose

Insulating a Maine Roof with Dense-Pack Cellulose

1 comment

A homeowner is moving ahead with plans for an unvented roof insulated with a combination of dense-pack cellulose and rigid foam board. Will moisture be a problem?

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Best Attic for Hot/Humid Climates

Best Attic for Hot/Humid Climates

Most houses in Hot/Humid climates don't have basements so that means that most ductwork in Southern house runs through super hot attic spaces. In this video I'll show you a rather civilized attic space that really makes for a comfortable & efficient house!

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Using Polyethylene as an Air Barrier

Using Polyethylene as an Air Barrier

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Although polyethylene sheeting has fallen out of favor as a vapor retarder in most wall and ceiling assemblies, opinion is mixed on whether it can be used as an air barrier

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PODCAST: Five Big Holes in your House That Suck Energy Out

PODCAST: Five Big Holes in your House That Suck Energy Out

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  An 1/8th inch crack along a window doesn't seem like much to worry about, but a 1/8th in. crack running the length of your house amounts to a hole bigger than a half sheet of plywood. If...

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Where to Spend Your Money: Superinsulation or a High-Tech Heating System?

Where to Spend Your Money: Superinsulation or a High-Tech Heating System?

2 comments

What's the best plan: investing in high-quality windows and insulation, or a high-efficiency heating system?

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Summer is the Time to Head Off Ice Dams

Summer is the Time to Head Off Ice Dams

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Corrective action now will prevent ice dams and water intrusion when winter rolls around again

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One view of the net-zero energy frontier

One view of the net-zero energy frontier

A white paper explores how builders, manufacturers, and government entities can develop the market for projects designed for net-zero-energy performance

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Building a radon-resistant home.

Building a radon-resistant home.

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What is deadly and might be lurking in your basement? No, not a Ninja (well probably not), in most cases it is Radon. And it is important to know what Radon is and how to ensure it isn't a threat to your household. From building to testing, I will share what I learned about Radon while building my house.

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When Insulation in the Roof Isnt There

When Insulation in the Roof Isn't There

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The owner of a New Hampshire beach house may have a great view of the ocean, but there's not a shred of insulation in the roof. What now?

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Patricks Barn: Underslab Insulation

Patrick's Barn: Underslab Insulation

This past weekend we leveled the gravel with a site-built jig and put down a layer of rigid foam.

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Getting the Details Right for an Unvented Roof

Getting the Details Right for an Unvented Roof

The roof is on, and insulation contractors are now advising Ted Storm on how much open-cell foam to spray on the back side of the roof deck. Three contractors suggest the same thing, but is their advice on the right track?

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Insulating an Old House from the Outside

Insulating an Old House from the Outside

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A 50-year-old house is about to get an overhaul that will include new sheathing, siding and wall insulation, but the owner is sweating the details

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When Does a Conditioned Attic Make Sense?

When Does a Conditioned Attic Make Sense?

1 comment

An Oklahoma builder who builds relatively large, single-story homes wonders whether his best approach is to turn the attic into a conditioned space with the use of spray polyurethane insulation.

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