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7 Answers

Rhode Island remodel

My wife and I are in the process of purchasing an 1100 sq ft 1978 ranch in western RI (zone 5A). The existing house sits on an ~800 sq ft unfinished basement with the western (24') and northern (36') walls above grade/walk out.

Our plan is to finish the basement at the kitchen/living areas and re-model what will then be the 2nd floor as 3 beds, 2 baths, a laundry and a study.

Asked By Ben Balcombe | May 5 15
5 Answers

Relative humidity conundrum

I have an Aprilaire automatic humidifier installed in the return air duct of my HVAC.
The Aprilaire displays RH% and is presently set at maximum (5,000 s.f. home) because we have had a problem with our wood floors drying out too much during the winter. The conundrum is that, for example, when the Aprilaire displays 45% RH, my hand-held RH meter may display only 30% RH. The obvious check of using the same meter in the return duct air stream confirms that the Aprilkaire reading is correct. So how can the 2 readings be so different when the Aprilaire is reading the returning air stream?

Asked By Chris Simmons | May 5 15
5 Answers

Deciding between power vent and chimney water tank

My current water tank is rusting, rental company screwed up and it rusted prematurely, when i replaced my chimney vent furnace with high efficiency i was told the "orphan" water tank may have back drafting issues which did not happen, but the water tank anode was already gone and it was rusting internally. I figured when the water tank was getting old 5-10 years from now i would go with dual pipe power vent but it died prematurely.

Asked By Alan B | May 4 15
4 Answers

XPS foam on basement wall with no sill plate gasket

I am in the process of redoing my basement and would like to insulate the walls, but I don't really know what type will be the best. My basement walls are constructed with hollow concrete blocks and the the sill plate is non-pressure treated lumber resting directly on the concrete block with no capillary break (home built in the late 70s in climate zone 4A). The exterior of the house is brick veneer and the sill plate is about 6 inches above the level of the soil.

Asked By Tracy Burcin | May 5 15
3 Answers

Spray foam covers entire 2x4 on roof truss...bad?

I had my roof deck sprayed with spray foam (to the underside of the truss). My roof trusses were designed at 16" OC and constructed with 2x4's. They needed to spray 4" of foam to get the code requirement for insulated value, so they covered the 2x4's completely on the roof deck.

Now I'd never really looked at and or thought about it till after they were done...(should have had the trusses designed with 2x6's) but the 2x4's are fully encapsulated with foam. I'm worried they are going to rot because they can not breath. Is is not a big "no-no" to encapsulate wooden studs?

Asked By Mark Helmrich | May 4 15
1 Answer

Why should we shift to EPS panels for building construction instead of conventional methods?

I write this email with great respect for you. I was going through your a particular website on EPS technology and came across your profile. As I am myself a young engineer and doing research work on 3D EPS Panel. During my research i came across a few unanswered queries. I am from India and this technology is currently being used in filler walls only and not as load bearing structure, therefore i was wondering if you could help me in understanding the adaptability of this technology in advanced countries like yours as compared to India which is still a developing nation.

Asked By Sural Kaul | May 5 15
5 Answers

Geothermal - Sizing Issues - 4 Ton or 5 Ton?

I live in Cincinnati, OH and I am zeroing in on purchasing a geothermal heat pump for my 5800 SF (conditioned) home. My home is all electric is currently heated by an 8 year old 4 ton air source heat pump with 15Kw electric backup. My issue is the two geothermal companies I have contacted to quote the job disagree on heating load of my home. Both companies did Manual J calculations, but are coming up with different numbers. One company has the heat load at 55k BTU -- says a 4 ton is the way to go. The other company has heat load at 68k BTU - says go with a 5 ton unit.

Asked By joel perrine | May 3 15
4 Answers

Open cell spray foam on roof deck & vapor retarding primer


Asked By David Amenhauser | May 4 15
1 Answer

Fixit 222 Aerogel

It was mentioned in the 2015 Passivhaus conference article, what is its cost and R value?

Asked By Alan B | May 4 15
2 Answers

Who do I contact or is analysis done here?

I have a new construction house that is designed and ready to be built.

I am satisfied with the layout, but need expert analysis on choosing the insulation and HVAC strategy.

I want someone to look specifically at my plans and advise me on this particular project. I am unsatisfied with the "spray foam seems to work well, or i sell a bunch of...." responses that I am getting.

Who performs this type of service? How do i find someone reputable?
Do I just upload plans here in another post?

I live in Northern NJ zone 5A.

Thank you for your help

Asked By Brian McDonald | May 4 15
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