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3 Answers

Which are the best energy efficient windows?

I am looking to buy energy efficient windows. This winter our energy bills have gone unexpectedly high and while discussing this with a friend of mine he advised me to buy energy windows. I searched a few review sites and found that there are many window companies that offer energy efficient window installation. I have also checked this comparison chart between different window companies: [web site address deleted by editor]. But I am still confused on which one to choose. Can anyone here help me with that?

Asked By Nora Obrien | Feb 26 16
1 Answer

Fire proof non-warping foam?

I am an insulation contractor and one of the jurisdictions we work in has begun to demand that fireproof sealants in penetrations to conditioned space from attics and crawlspaces. We have always used a non-warping 1-part foam around electrical and plumbing penetrations. Does anyone know of a non-warping expanding foam that is considered fireproof? We have intumescent caulk that we use in certain areas but many times the holes drilled by the plumbers and electricians are too big to fill with caulk. Thanks for any leads anyone can provide!

Asked By Nathan Shirai | Feb 24 16
21 Answers

Geothermal+DHW+Radiant Heat

As a newcomer to GBA I ask for pardon if this question is worn out. I'm in a very preliminary design phase for an 18K square foot residential home in central North Carolina. The design is to incorporate precast insulated concrete panels, and SIPs with radiant floor heat on 2 levels. Does adding radiant heat along with air conditioning and hot water make a better case for geothermal? I've gotten conflicting information and recommendations from several HVAC folks. All experienced and educated feedback is welcome.

Kind Regards,

Mark Payne

Asked By Mark Payne | Feb 20 16
15 Answers

Rim joist insulation: No wood sill plate - influence on rigid foam

Good evening,

I have been reading posts on this forum for the last year and greatly appreciate the thoughts offered. I own a 75 year old stone/brick colonial in SE Pennsylvania (region 4a). The basement is unfinished and the sill boxes are not insulated. I would like to utilize rigid foam (foil faced PolyIso) with spray foam to insulate the sill boxes.

Asked By Scott Fillery | Feb 13 16
1 Answer

Has anyone used EcoFoil or radiant barrier/insulation in basement?

We are trying to protect our concrete basement from moisture. We were thinking about putting EPS foam on the floors and walls as a thermal and vapor barrier. We still may go that direction, but I am concerned about our daughter's chemical sensitivities and the flame retardants in the foam. Has anyone used a radiant barrier like EcoFoil on the walls and concrete slab (under laminate)? Here is a link to the product:

Asked By Carolyn Farrow | Feb 21 16
7 Answers

Waterproof, durable and easily removable panels?

Hello! First time here :)

I'm 25 years old, own 4 rental properties which i do all repairs and maintenance myself. As i have become more fluent in everything that comes along with doing that, i am now ready to do a fix and flip. Or i like to think of it more as a conversion. I have many questions and would love some dialogue in the future of what i want to accomplish.

My main focus is going to be making the house as maintenance free as possible. Super functional, strong and smart.

Asked By Silas De Vries | Feb 3 16
2 Answers

Product performance on KLEER used in exterior trim

I moved into my new home last April and have notice that the material called KLEER lumber used on the eve facia shrinks at cold temps - a lot. Factory rep inspected it at 33 degrees. I have photos at 15 degrees with joints open enough to see the framing material under the trim. Does it continue to shrink as temps go down? Is this a material that was not intended for exterior use?

Asked By Lois Bahle | Feb 18 16
20 Answers

Looking for rigid foam without flame retardant...Help!

I have decided to completely insulate our basement (slab and walls) with rigid foam insulation (preferably XPS). Does anyone have any recommendations of any products without flame retardants? I am trying find products that are less toxic and have less off gassing of potentially harmful chemicals. Also, any spray foam products (for sealing the cracks and joints) that you recommend that are less toxic? Thank you!!!!

Asked By Carolyn Farrow | Feb 14 16
1 Answer

Is polyiso roof decking acceptable as exterior wall insulation?

A local roofing supplier is selling polyiso insulation boards for very cheap. Almost too cheap, and it has me wondering if it isn't the same kind of rigid insulation I am looking for for exterior wall insulation.

The folks at the supply house wasn't sure of the brand, so I don't know any of the details, but they told me the R value of an 1-1/2" sheet is R8.6. I have found "ValuTherm" which has the same specs. It says it is closed cell polyiso designed for roof decking and has a fiberglass facers.

Asked By Clay Whitenack | Feb 15 16
7 Answers

Output air temperature of mini splits on heat?

I have a little experience with heat pumps and gas furnaces, and have always noticed the difference in temperature of the air coming through the registers. I read somewhere that heat pump air temps are usually 95* where gas furnaces get the air temp up to 115*.

I have looked around but can't find the output temps of mini splits. Is it the same as conventional heat pumps? I know that mini splits are supposed to be able to operate in lower outdoor temps compared to regular mini splits, and wondered if that translated to a higher output air temp.

Asked By Clay Whitenack | Feb 15 16
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