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3 Answers

Can copper sulphate be removed from water supply?

I have copper sulfate in my water supply confirmed by the supplier which they say is coming from my copper piping. I have a filter on my kitchen faucet so I can use the water for drinking etc. I am planning on replacing all the piping that I can reach with PVC. The house is a 50 year old rancher so I can reach everything but the short vertical runs to the kitchen and baths. The water heater is 20 plus years old so I will replace that as well. Before I do all that work I was wondering if there is an easier solution?

In Mechanicals | Asked By phillip rhudy | Nov 30 13
9 Answers

Anyone have experience with payback calculations?

I had an energy audit yesterday, and they claimed I could get a 5 year payback by adding more attic insulation. I found a payback calculation online, and that came back with 30 years. I want to do the right thing, but it also needs to make financial sense. Anyone have experience with the payback calculation? I put my specifics in the "more explanation" section. Did I do it correctly? Hoping to find someone smarter than me (that part won't be hard) to help. Thanks.
Current insulation is R30 – fiberglass

In Energy efficiency and durability | Asked By Greg Bekius | Nov 26 13
2 Answers

Has anyone used an IB Roof membrane (PVC)?

I have a home in south Florida with a "flat roof". I currently have a built up asphalt roof. I am wanting to use tapered insulation to repitch the roof for better drainage and a little insulation. I have quotes for 1/8" and 1/4 inch . Any thoughts out there? Thanks for any and all information shared
Andre Comeaux

In Green products and materials | Asked By Andre COMEAUX | Dec 1 13
3 Answers

Knee wall insulation

Hi I have a cape in NY with knee walls on second story that were batted 50 years ago. The knee wall studs are only 2.5" wide (not usual 3.5"). The insulation is pretty beat in places. The floor of the knee wall is insulated over the ceilings below. There is a new roof cap in place that allows air to move up the rafter area. My question is what is the best way to insulate or re insulate the knee walls?

I was thinking of just adding a 2" rigid foam over the existing knee wall studs. Probably should replace the batting also though? I really dont want to replace the entire knee wall studding.

In Green building techniques | Asked By Robert Parker | Nov 28 13
3 Answers

Is this website broken? No content, even with a trial premium membership?

No content?

In General questions | Asked By Michael Boro | Nov 29 13
3 Answers

Partial wall reconstruction with rigid foam and vertical vinyl siding

My contractors and I will be partially rebuilding a 40' section of 8' tall west-facing wall. We/I plan to use external rigid foam and vertical vinyl siding. I realize there are some risks with these types of walls, so I'd appreciate if the community would look over the planned design and point our risks.

The climate is zone 5a (or almost 6a), about 30 miles north of NYC.
The construction from inside to outside is planned to be:

- Lowes Valspar Signature "paint+primer" (unknown permeability rating) or sealed bathroom tile

In Plans Review | Asked By Jason Crawford | Dec 1 13
1 Answer

Lined masonry chimney vs an insulated stainless steel chimney

This would be a single flue chimney that would just serve the wood stove/ and or eventually the masonry heater. What are the plus/minuses of both and the realistic life span of them? Our primary source of heat will be wood.

In Energy efficiency and durability | Asked By philip Bell | Dec 1 13
4 Answers

Should the eaves on a unvented roof system be vented?

I am building a house with closed cell foam sprayed in the rafters under the roof deck. This will put a vapor block at the soffit.
I am building a house with closed cell foam sprayed in the rafters under the roof deck. This will put a vapor block at the overhanging roof.
The roof overhang is two feet. Do you think the overhanging eaves should be vented? (The house is in Rhode Island (climate Zone 5-6)
Thanking you in advance,
Paul Sardelli

In Energy efficiency and durability | Asked By Paul Sardelli | Nov 29 13
1 Answer

Frost & condensation on TechShield

I'm building a single story house in Walla Walla. I have frost on the underside (TechShield) side of roof sheathing. I have R-60 insulation and was careful to seal all penetrations through ceiling and am using airtight cans.

The house is approx 2,450 sq ft. I have ridge vents and 28 - 8x16 soffit vents.

I did have some vents blocked by insulation and have fixed that. I also have energy-heel type trusses.

In Energy efficiency and durability | Asked By Richard Smith | Nov 29 13
1 Answer

Does it ever make sense to cut rigid foam into strips and insert the strips between your studs or rafters?

Does it ever make sense to cut rigid foam into strips and insert the strips between your studs or rafters?

In Energy efficiency and durability | Asked By Edward Howard | Nov 29 13
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