Questions tagged [radiant-barrier]

Media that provide thermal insulation by reflecting heat

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How to minimize radiant warming of unfinished uninsulated garage in California summer sun?

We have a 75-year-old attached but unfinished and uninsulated redwood stick-built garage, roughly 20x20 feet. In the unshaded California summer sun, the roof gets quite warm and radiates the heat into ...
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Replacing cedar shake siding and adding insulation

I have old cedar shake siding on a portion of my home, built in the 1950s, and am planning to replace it with a cement siding. Underneath the cedar are nailers, then the open cavity of the wall. In ...
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How to insulate tuff shed ceiling that has Silver Radiant Barrier

Tuff Shed has 2x4 rafters on 24 center. I was going to spray foam 3.5 inches of closed cell foam for r19 value but then read it would defeat the silver lined radiant barrier and that heat would ...
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1920's Home Attic Insulation Options for warmer summer months (SF Bay Area)

I'm currently trying to install a whole house fan in our 1000sf 1920s home in Oakland, CA. The weather is temperate and Oakland gets 3-4 weeks a year of heat that's 80deg-100deg. With our old house, ...
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Using radiant barrier inside my home to reduce heat coming through the skylight

How does the additional heat reflected back through the glass affect the integrity of the skylight glass?
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Is an aluminium radiant barrier allowed to cover insulation paper facing instead of drywall?

First some context: Geographical location: City of Sacramento, CA, USA Building: Residential detached garage. Goal: To keep it cool in the summer and warm in the winter. Approach: kraft paper faced ...
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Insulating a Wall Against Unconditioned Attic Space

I'm looking for help in insulating my 1950s San Diego house. A second story was added in the 70s and a gas furnace + A/C was added about 10 years ago in the unconditioned space above the downstairs ...
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Any experience with Radiant Barriers?

I'm going to be putting up a ceiling on my back porch, which is glassed in. The heat can be unbearable, so I thought I'd investigate insulation. I keep coming up with recommendations for metallic/...
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Should I install radiant-barrier insulation in a walk-up attic roof in Pennsylvania?

I have a walk-up unfinished attic in an old ranch house in Pennsylvania, where we see summer temperatures over 100F and winter temperatures well below freezing. Because there is planking over the ...
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Is there any reason not to use radiant barrier sheathing in walls of attic room

I am finishing out an above-garage room that is currently attic space. The roof has radiant barrier sheathing (ie foil-lined OSB). I have a few walls that are currently just studs open into the attic....
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How to insulate under hot water radiant flooring over a crawlspace?

I just built a small extension on my wood frame house. We are in the northeast (winters down to the low teens). We added three small rooms (mudroom, laundry, bath). They all now have hot water ...
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How should I insulate hydronic radiant heating under floorboards

A couple weeks ago a contractor installed hydronic radiant heating at my place. The building is two floors (studio above a garage) and the heating was installed under the floorboards. When he finished ...
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What kind of insulation should we put under new tin roof?

We live in an old long leaf pine farmhouse that has no insulation in it. We are going to be putting a new metal roof on the house. The attic of the house was made into living space and so there is ...
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Would a radiant barrier help stop this heat transfer?

Using my nifty thermal camera, I discovered that my furnace closet's combustion air duct (visible in this question) is getting really hot when the attic heats up, and then (being sheet metal) it ...
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Is there any reason not to use a radiant barrier in the attic?

I am considering putting up a radiant barrier in my attic, with a product like AtticFoil, to: Reduce the attic temperatures as my A/C ducting is in the attic, and Reduce heat convection into my home ...
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