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1 Answer

Prosoco Cat 5 vs. peel-and-stick tape

For exterior OSB joints. Is it better to use the Prosoco Joint Filler caulk/compound or just use peel & stick tape? Which will last longer?

Prosoco is supposedly breathable so it allows moisture to dry. Any feedback in the field?

In Green products and materials | Asked By Peter L | Oct 16 16
1 Answer

Detail for innie inswing door with thick exterior foam?

I'm planning a house for Rochester, NY, zone 5. The wall have 2x6 studs, 7/16 sheathing / air barrier, 4" rigid foam, a wrb, a 3/4" rainscreen, and 3/4" thick horizontal shiplap siding. The foundation is a monolithic slab on grade with 4" exterior rigid foam. The finished floor height is 2" above the slab. There are 4-7' overhangs over every exterior door.

My general question is, how do I install an innie, inswing exterior door in this assembly?

I want an inswing door because it can't be blocked by a snow drift.

Here are a few specific questions:

In Green building techniques | Asked By John Ranson | Oct 15 16
17 Answers

Options for replacing 2-cycle gas weedwhacker / string trimmer?

I recently replaced my gas-powered push lawnmower with a manual reel mower (Fiskars Staysharp Max Reel Mower, 18-Inch) for maintaining the grass on our small (7,500 sq ft) lot.

In Green products and materials | Asked By Robert Hallenbeck | Jun 26 16
2 Answers

Installing exterior trim with a rainscreen

I'm planning horizontal shiplap siding over 4" of foam with a rainscreen gap for my house. How do I make the rainscreen accommodate exterior trim around the windows? Do I just make the furring picture frame wider than the trim, wide enough to support the ends of the siding?


In Green building techniques | Asked By John Ranson | Oct 14 16
3 Answers

3/4" of XPS on a basement floor vs. 1½" in a Climate Zone 7 basement

A friend is planning a basement reno..

it has no insulation at all on the interior or exterior or under the slab. It was built in about 1995. The basement has about 18" above grade, the balance is underground. It has never had bulk water seep in and its unlikely that there is poly under the concrete as this wasn't commonplace here (Winnipeg Manitoba Canada).

He wants to add 3/4" XPS to the floor (1150 sq/ft) and cover that with either 5/8" or 3/4" t&G OSB or plywood using only the T&G joints to hold the sub floor together as a unified surface.

In General questions | Asked By Tim Brown | Oct 13 16
7 Answers

Radiant heat vs. split system heat pump

I have a 24 x 24 foot family room with a 16 foot cathedral ceiling. It's built over a garage. It has radiant heat running off an oil fired boiler (the rest of the house has radiant baseboard. The room has a split system heat pump that is used to provide AC. During the week the room only needs to be heated for a about 5 or 6 hours in the evening. Does it make more sense to keep the radiant at a lower temperature, say 65 and run the split system in the evening or run the radiant at a higher temperature. It typically takes several hours for the radiant to come up to temperature

In Energy efficiency and durability | Asked By Alex Ivkovic | Oct 11 16
2 Answers

Internal wall of a 1835 house


I live in a greek revival house built in 1835 on Cape Cod (MA). Over the years this house has gone through different renovations/updates some more successful than others. We are in the process of renovating the top floor which still has original wood windows (in really bad shape unfortunately) and no insulation.

The house uses post and beam construction (I was told) and the side walls (East and West facing) don't have any cavity. The North and South walls (front and back of the house) do have cavities and have been insulated with cellulose 3 years ago.

In Energy efficiency and durability | Asked By Riccardo La Rosa | Oct 14 16
2 Answers

Are minisplit refrigerant lines better in a wall or outside?

Will the heating efficiency of a mini split operating in a cold climate be effected by whether the refrigerant lines are run inside the walls and kept warmer vs running them down a chase on the outside?


In Mechanicals | Asked By Michael Prisco | Oct 14 16
1 Answer

Should standing seam metal roofing be vented over a roof insulated with exterior rigid foam?


This question is related to another question ("Is it advisable to use nail base insulation panels over a roof insulated with closed cell spray foam?") that I asked over a year ago, but for some reason when I try to post to the original thread I get blocked......

In Energy efficiency and durability | Asked By Jodi Gunderson | Oct 14 16
9 Answers

Best way to insulate for staple-up radiant heat?


In Mechanicals | Asked By Jack Roberts | Oct 13 16
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