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6 Answers

Window flashing: no nail fin, 2" foam, rainscreen, siding

I am working on some details for a project and want to bounce a question off people here.
Wall structure is 2x6 frame, 1/2" sheathing, 2" foam (2 layers 1"), 3/4" strapping, siding.
Most details and all I have done place the nail fin on the outside of the foam with the strapping over the nailing fin. However for this project the Inline windows do not have a nail fin and we do not want to go with the expensive brick mould to add them.

In General questions | Asked By Jesse Lizer | Aug 7 12
3 Answers

Do mini-split systems qualify as a heating system for home loans?

I recently heard that mini-splits will not qualify as a heating system for Home loans because they can not provide full heating in the coldest New England temperatures. Is this true?

In Mechanicals | Asked By Ed Whitaker | Sep 25 13
7 Answers

Who makes a decent fiberglass entry door?

I've been looking at Therma Tru, Pella, and Jeld Wen. Ideally, I'd like an Energy Star door that seals well and offers decent quality. The contemporary style of our home means the door will be mostly glass, so that part is as important as the frame.

Thanks in advance for your suggestions.

In Green products and materials | Asked By Steven Knapp | Aug 25 13
2 Answers

Should I call for rigid mineral wool sheathing to be installed in two layers?

I'm planning to use rigid mineral wool sheathing on a retrofit project. In the past when I've done this with XPS or polyiso rigid foam sheathing, I've called for 2 layers of foam, with staggered seams, presumably because rigid foam shrinks and installing in 2 layers reduces the likelihood of "cold lines" in the continuous insulation layer. Mineral wood doesn't appear to be a product that shrinks and the photos I see suggest that the product can be joined at each edge quite tightly.

In Energy efficiency and durability | Asked By Rachel Wagner | Sep 26 13
2 Answers

Building a better system to build a better house

I’ve been doing a lot of reading on this site with the blogs and the Q&A section. I’ve learned a pretty fair amount about Passivhaus , Net Zero and Green Buliding . I’ve come to some conclusions that I think may be valid, but wonder if there should be more.

In General questions | Asked By Dan N | Sep 26 13
5 Answers

Installing vertical cedar siding over external foam and housewrap


In Energy efficiency and durability | Asked By Chris O Brien | Sep 25 13
3 Answers

Rigid foam over kneewall studs to eliminate thermal bridging?

Hello! I've got a 1926 bungalow in Portland, OR (zone 4C). The attic was finished in the 50's, and is terribly leaky and not insulated. The previous owners left behind a boatload of fiberglass batts, unwrapped, with kraft paper backing. I was hoping to use them to insulate the kneewall, after air-sealing the gaps with some caulk.

However, since the joist bays are somewhat shallow (I believe ~3.5"), I was hoping to cover the outside of the studs with rigid foam insulation as well (XPS or ISO) to prevent thermal bridging, secured in place with a polyurethane expanding foam.

In Energy efficiency and durability | Asked By Richard Smaldone | Sep 25 13
3 Answers

Final insulation questions for wall and attic

Ok...I'm getting ready to finish up insulating my interior walls and my attic.


In Energy efficiency and durability | Asked By Geoffrey Cook | Sep 26 13
2 Answers

System efficiency: forced air furnace vs. water heater/air handler

Where would I go to predict the relative efficiency of these setups:
1) An efficient forced air furnace, plus separate efficient water heater.
2) The same class of water heater, but with a water-to-air air handler instead of the furnace.
(In this case for a 1500sf insulated one bath single family home in a mild climate, which has no existing furnace)

In Energy efficiency and durability | Asked By Bryce Nesbitt | Sep 26 13
1 Answer

How to install a mail slot in brick wall thru garage drywall

How do I install a mail slot in an exterior brick wall thru garage drywall? What is the distance between the garage wall beams? Thank you.

In General questions | Asked By Sharon Yanish | Sep 26 13
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