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2 Answers

(MA-specific) How to get clawfoot tub installed in NEW construction

We are about to pour slab-on-grade here in Massachusetts. Under-slab plumbing is done. Our hope is to reuse an old antique clawfoot tub in our new construction. *Reusing* old, instead of buying new, seems very 'green' to us, hence this inquiry at GBA.

MA has an 'approved plumbing list' for all fixtures. If it not on the list, then it is not permitted for installation. So far as I can tell, I don't think the AHJ can override it, but perhaps there is some slack.Until I am more sure of my options I do not want to have a discussion with the plumbing inspector office.

Asked By Kenneth Gartner | Sep 13 17
3 Answers

Bedroom egress window requirements

Do I still need to use an "egress" window? My master "suite" has two entry-exit paths, one through a central hallway and a second that opens into the 'family room" The family room has an exterior door located immediately to the right as one enters from the master suite.

Asked By Jerry Liebler | Sep 1 17
4 Answers

Does code allow an exterior stud wall to be cantilevered over rim joist?

New Hampshire, Zone 6a/ 1400 feet Elevation:

I am exploring a way to mitigate the thermal bridging at the rim joist of a double stud wall.

Does building code allow an exterior, load-bearing stud wall to 'hang off' the edge of the rim board? If so, I am hoping this would free up an inch or two to add rigid foam around rim joist and between bottom plate of stud wall and ICF wall. I am thinking either rigid mineral wool or Type II EPS for vapor openness in a cold climate.

Asked By Rick Evans | Aug 20 17
1 Answer

Main stack venting

I'm finishing tying in an addition to my existing slab on grade home and found the main stack vent on the existing house is about 6" into what will be a hallway.

The original house had a 3" main stack vent off the master bath, near where the drain exits the house to the septic. There is also a 2" vent on the other side of the house connected to the kitchen and another full bath. There is a 3rd full bath in the middle of these two vents. The original master bathroom piping has been capped and covered with concrete, except the main stack vent.

Asked By Mike M | Jul 22 17
5 Answers

Insulation and new codes

Planning a renovation and addition of an existing house;

1. Climate Zone 4 - the new insulation code for ceilings is R49. Is the only way to achieve this in 2x12 roof framing to use closed cell spray foam or rigid on the exterior? Client doesn't want to use spray foam. Working to match existing roof lines and not remove the existing roof. In order to match existing roof lines there is part of the ceiling that will also be the roof.

Asked By S G | Mar 3 17
3 Answers

Any experts in Title 24, Part 6 out there?

In replacing a wall and adding insulation (home was built in 1961 and currently has no wall insulation) I am also adding two small windows to this south-facing wall. Because I'm adding windows, I need to comply with either the prescriptive requirements of Title 24 or the performance requirements. Because I'm not adding conditioned space, I cannot demonstrate performance based only on the new space, but would have to demonstrate it on the whole house which is completely impossible without a gut remodel.

Asked By Domenico Perrella | Jun 11 17
5 Answers

How far apart must my HRV fresh air intake be from exhaust?

Just had an HRV installed and was expecting the fresh air intake to be on the front of my house because my furnace and water heater are vented on the corner of the side of my house. The installer used a 2 in one vent cover where the stale air and fresh air intake come out of one vent cover that is located 2 1/2 feet away from the first exhaust pipe. Is this safe or legal? How about if he adds snorkels to either the intake or the exhaust?

Asked By Lewberg | Jun 8 17
16 Answers

Shiplap in lieu of sheetrock - Questions regarding fire safety

I don't know if this is correct category to place this question in, but here's the deal:

Building a living unit in a section of a post-frame building. The exterior walls are constructed using the PERSIST method, with Grace Ice & Water shield covering the OSB, 1" foam on top of that. The stud bays will be insulated with poly-iso cut and cobbled, 3" thick.

Asked By John Peeper | Jun 2 17
13 Answers

Residential frost-protected shallow foundation in central Mass.

We are planning to provide a monolithic pour frost-protected shallow foundation (FPSF) for a single story 1300 sq ft 2 bedroom home in central MA. Air Freezing Index is 2000. I have read through many different case studies, research papers, codes, etc and there is a bit of conflicting and locale-specific info so I am looking to see whether I understand what is required here. I am a newbie owner-builder. Any constructive criticism would be appreciated, but I don't want to foment any religious wars.

Asked By Kenneth Gartner | Sep 2 16
2 Answers

Furnace cold air return requirement with HRV

New build in Ontario with Zehnder ComfoAir 550 HRV (home run system - not tied into furnace)

Does the furnace need traditional cold air returns in various rooms or can we just draw air back into the furnace directly from the basement (where the furnace is located)

The HRV is already moving air so not sure of the purpose of the cold air returns in this setup


Asked By Steve Babcock | May 12 17
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