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2 Answers

Heat pump water heater size and brand

I'm getting ready to pick my heat pump water heater for the house I'm building. I was leaning towards Airtap but they seem to be gone. the house has 3 bedrooms and 2 1/2 baths with one fairly big tub. I am trying to decide on a reliable brand and looking to see what people recommend. I think I need at least a 60 gallon tank but it seems like the resistance electric would kick on a lot less if I got a 80 gallon tank. what are the disadvantages of the larger tank besides a little more surface area for heat loss?

Thanks for any feedback


In Green products and materials | Asked By Andy Kahn | Aug 6 15
1 Answer

AstroTurf on roll roofing?

How do I adhere astro turf, or jute carpet to roll roofing to walk on?

In General questions | Asked By William Lynn | Aug 6 15
6 Answers

Blueskin self adhesive membrane tape is expensive.. I think I have an answer..

I was wandering through the isle at HD and noticed that the (Blueskin) 6" wide tape x 50 ft is $30 but the big roll of membrane 36" x 200 ft is only $128.

It occurred to me that I could either unroll the larger membrane and slice it into 6" (or any width) strips across the 36" width or roll out the length I need (say 72" and cut strips along the length.

Is that a genius idea or as I fear... the two products are not the same. I am hoping the Bakor Blueskin WP 200 is just a giant roll of whats in the 50 ft rolls.

Anyone ever consider this or look into it?

In General questions | Asked By tim brown | Aug 5 15
20 Answers

Cathedral SIPs are sweating in summer

I have a new home built with SIPS, closed cell polyurethane, R40 roof and R24 walls. The SIPs were installed/built spring of 2014, we moved in Feb 2015. The home is timber frame with Metal unvented roof, the roofer did use vertical furring strips and double bubble over felt. We live in KY and are just now getting into high humid summer, and our center ceiling beams are dripping wet throughout the day, causing small puddles on the floor. The ceiling is hot to the touch at the very peak on either side of the center beam. I believe hot outside air is leaking in.

In General questions | Asked By Jeremy Ballard | Jul 12 15
2 Answers

Do you recommend closed or open-cell spray foam on roof sheathing in a finished attic space in Chicago that incl. HVAC system?

Would closed cell spray foam insulation on roof sheathing impair the ability to detect water leaks via the roof? I'm being told by an insulation contractor that using closed cell spray foam in the roof area would cover up any water damage coming from the roof and the possibility of mold issues would be greater than if I used open cell spray foam. Other insulation contractors are telling me to use closed cell spray foam to R-49 on the roof sheathing in the finished 3rd floor space. Which way is recommended?

In General questions | Asked By Christine | Aug 4 15
2 Answers

Minisplit for a new garage in Zone 6B?


I am building a detached garage in zone 6B. Zip 54016. I'm leaning toward a natural gas unit heater , because I assumed that my climate would not permit a mini split heat pump only. Am I wrong?

In Energy efficiency and durability | Asked By Jeff Bednar | Aug 5 15
3 Answers

Hot water using the boiler

Using my boiler that has a heating coil and is plumbed into the hot water tank-- My hot water is coming out brown looking and sulfur smelling but not bad --just brown colored. Can the coil be bad?

In General questions | Asked By Chris Kennedy | Aug 4 15
1 Answer

Ridge vent question

Hi Everyone,

I posted a while ago about insulating my 3rd floor attic room and will probably do the entire rafters and insulate the whole space rather than the "room". I will need to replace the roof - it is original 1993 before I do anything. I looked at spray foam but considering the cost and inability for it to give me my required R38 I will probably do soffit to ridge venting with Roxul R23 in the 2x8 rafters and then do R15 in a 2x4 running perpendicular to the rafters. I currently have gable vents and will have to fill them.

In Energy efficiency and durability | Asked By Joe Watson | Aug 5 15
8 Answers

Heating system advice for zone 7 new build

I am building a home in Grand County Colorado, climate zone 7 that will be used as a vacation/ second home for my family and as a rental property when we are not there. It is still in design but the plan is around 3,000 SF on 2 stories plus around 1,500 SF basement, R35 walls/ R75 roof/ triple glazed windows. The property does not have natural gas service but does have electrical service and we plan put in a propane tank.

I am researching different options for heating and DHW, cooling will not be required.

In Mechanicals | Asked By Chris Armstrong | Aug 4 15
1 Answer

Floor plans

I am in beginning stages of diy renovation of a rundown double wide mobile home.

52' x 28' . the midline where they meet is 13.5' for each side.

I was wondering where i could go to get a better floor plan that is more energy
efficient. I believe that i can move things around. the limiting factor is the
walls in certain sections needed to support the roof.

Any advice on who I can contact ?

Would it be an architect ?

Thanks for any help.!!

In Plans Review | Asked By Jacq snow | Aug 4 15
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