tag: insulation


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Siga Wigluv - Air Sealing Tape Review

Siga Wigluv - Air Sealing Tape Review

11 comments

There are 4 things every house must control (in order of importance). 1. Water 2. Air 3. Vapor 4. Thermal Codes have only started to address air control and I think many builders in the US are behind in this area.

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How to Use Spray Foam to Meet New Energy Codes in Warm Climates

How to Use Spray Foam to Meet New Energy Codes in Warm Climates

As a builder in the hot and humid South, I regularly use spray foam in my houses. Spray foam makes it much easier to encapsulate my attic (where most HVAC systems in Texas live) so that my ducts are inside the thermal envelope.

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How to Insulate a Slab Foundation

How to Insulate a Slab Foundation

3 comments

Have you ever wondered why Slab Foundations aren't insulated? Two reasons, your house needs to be pretty efficient first before it's necessary, then it's darn hard to accomplish without making an easy path for termites. In this video I'll show you how we used Borated Treated Perimeter foam to insulate a Texas Slab on Grade Foundation.

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What Makes the Best Air Barrier?

What Makes the 'Best' Air Barrier?

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Planning a high-performance house in Massachusetts, Bill L asks the Green Building Advisor's Q&A Forum how to build in an air barrier that will stand the test of time. He's not sure that specialized construction tapes are the way to go.

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Home Energy-Efficiency Upgrades for Beginners

Home Energy-Efficiency Upgrades for Beginners

Advice for homeowners: Inspect your house for these common energy problems to get a better idea on where your money is best spent

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How to Install Dense-Packed Cellulose Insulation in Walls

How to Install Dense-Packed Cellulose Insulation in Walls

2 comments

two representatives from National Fiber, Bill Hulstrunk and Chris White, share their tips for installing dense-packed cellulose in wall cavities

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How to Keep a Garage-Shop Toasty Warm

How to Keep a Garage-Shop Toasty Warm

12 comments

Strawmyers knows all about the misery of working in an icy cold pole barn, and with a new attached garage on the horizon he has a chance for more comfortable working conditions. The question is how much to invest in insulation, and how to heat the space

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Indoor-Air Quality and Ventilation for Homes in Hot-Humid Climates

Indoor-Air Quality and Ventilation for Homes in Hot-Humid Climates

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The weather in the Southern United States poses a unique challenge to the issues of ventilation and indoor-air quality. Here are my opinions and suggestions on how to address these issues if you are building or remodeling in the South.

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How to Do Everything: The Energy Nerds Greatest Hits

How to Do Everything: The Energy Nerd's Greatest Hits

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If you plan to design, build, or remodel an energy efficient house, Energy Nerd Martin Holladay's collection of how-to articles is a must-read

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High-Performance Homes Dos & Donts: Mark LaLiberte Seminar Notes

High-Performance Homes Dos & Don'ts: Mark LaLiberte Seminar Notes

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Mark LaLiberte is an amazing building-science teacher. Read my blogging notes from his seminar titled "Building High-Performance Homes Dos & Don'ts," which I attended in Austin, Texas. Remember that this is focused on Texas construction, but there is plenty to learn here for anyone in the U.S.

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Airtight Wall and Roof Sheathing

Airtight Wall and Roof Sheathing

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In the early 1970s, residential builders knew almost nothing about air tightness. Nowadays, there's plenty of data showing why it's so important to air-seal houses.

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Insulating an Advanced-Framed House - A Hybrid Approach

Insulating an Advanced-Framed House - A Hybrid Approach

10 comments

Insulation advertisements would lead you to believe there products are perfect for every situation. In fact a hybrid approach is more likely to yield the high performance home I'm after. See this video to see how I used three types of insulation on this new Advanced Framed House I'm building in Austin Texas. -Matt Risinger

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Advanced vs Traditional Framing

Advanced vs Traditional Framing

8 comments

Advanced Framing isn't all that difficult and the benefits can be tremendous. In this video I'll show you a traditionally framed house and compare that to an Advanced Framed house.

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3 Reasons to Choose Spray Foam Insulation for a Remodel

3 Reasons to Choose Spray Foam Insulation for a Remodel

Remodeling presents special challenges for the insulation choices. In this 1 minute video I'll show you the three reason's I almost always choose spray foam insulation for my remodel projects.

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Texas Deep-Energy Retrofit Remodel

Texas Deep-Energy Retrofit Remodel

When you hear about a deep energy retrofit project most people think of the snowy North Eastern US. I can tell you that the strategy for a Northern remodel with energy efficiency in mind is very different that our strategy for Hot/Humid Texas. In this video I'll show you 6 things we are doing to making a dramatic difference in this 1950's slab on grade house's energy bills.

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Using Housewrap for Insulation Baffles

Using Housewrap for Insulation Baffles

5 comments

A bargain-hunting builder searches for an alternative to commercially available insulation baffles for use in a cathedral ceiling. Can he fashion something from a $30 roll of housewrap?

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Are you asking for problems if you put a plastic vapor barrier in your walls?

Are you asking for problems if you put a plastic vapor barrier in your walls?

2 comments

Once routine, polyethylene vapor barriers are out of favor in all but the coldest climates. Writing on behalf of a friend in Chicago, Ed says he gets that. But he wonders about the risks of building a house without one when no special care is taken to make the house airtight.

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Smart Design Advice for Hot & Humid Climates (i.e. The South)

Smart Design Advice for Hot & Humid Climates (i.e. The South)

Architect Peter Pfeiffer talks about how to utilize smart design for a house in a hot climate zone. His green building advice is practical and following his advice will result in a house that's well designed for the rigors of a hot climate. If you want a comfortable, efficient, durable house and you live in the South then this video will give you tons to think about.

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Should vinyl siding be installed over furring strips?

Should vinyl siding be installed over furring strips?

4 comments

As builders and homeowners get more energy-savvy, they often choose an exterior wall assembly that includes rigid foam insulation over the sheathing, followed by furring strips and then the siding. But is this technique appropriate for vinyl siding?

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The Downside of Using Structural Steel

The Downside of Using Structural Steel

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A Seattle homeowner worries that steel I-beams used to support cantilevered floors in this modernist design will wick in cold temperatures from the outside

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