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1 Answer

Linseed Oil Paint

Is this the most environmentally sound exterior finish for wood siding? This short video explains the process of finishing wood cladding with an all-solids (solvent-free) natural linseed oil paint. Linseed paint aficionados say this paint is more durable than any modern plastic resin paint, and a perfectly wholesome non-toxic substance. Here's a catch: this paint is very expensive and evidently only available as an export from Sweden.

Here are some things you might want to know (about paint):

In Green products and materials | Asked By TJ Elder | Dec 5 11
5 Answers

Supply placement in highly insulated home with vaulted ceiling

SETUP AS FOLLOWS: climate/region - Washington, DC, (More cooling days than heating) - Deep Remodel - R-45 roof - dense packed roof joists - with double roof for ventilation. R-36 wall values - 5.5" dense pack with 2 inches of rigid on exterior. Double glazed windows with proper solar shading. PROBLEM: I am struggling with mechanical sub about location of supply vents for three rooms on my second floor that have vaulted ceiling (2nd floor stairwell and landing zone with library and master bedroom - all on east side of house.

In Mechanicals | Asked By Patricia Shields | Dec 4 11
3 Answers

Best Practice for Installing Dense Pack Cellulose in Rafter Bays

I’m planning an R-60 unvented cathedral roof assembly with 3” of rigid foam above the roof deck, dense pack cellulose in the rafter bays, and 5/8” drywall on the ceiling as the primary air barrier. What is the best installation practice for blowing dense pack cellulose in the rafter bays? The rafters will be 2x12 on 24” centers and will span 16 feet, ridge to eave. Would you advocate dense-packing through InsulWeb netting? Would 1x3 or 1x4 cross strapping be required or recommended with the netting for my assembly? Or would you blow the cellulose behind the installed drywall?

In Green building techniques | Asked By Jim Hinkle | Dec 3 11
11 Answers

How would *you* build a north wall that faces a fire station across the street?

An urban infill question.

Starting from scratch, if you had a lot across the street from a fire station--beyond (presumably) "windowless," how would you build your north house wall which faces that station?

Since the inverse square law is relevant: when the trucks pull into the street, that siren probably is 10-20 yards away.

Curious to read your responses.

In General questions | Asked By Minneapolis Disaster, 6B | Dec 1 11
13 Answers

Best way to attach brick veneer to 12 inches of exterior foam?

I am planning a 15 x 15 foot interior dimension addition with slab on grade foundation, ICF walls , 12 inches of exterior XPS rigid foam and exterior brick veneer. I plan to tape and seal the rigid foam to the ICF but am not sure of the best way to attach the brick veneer.

In Green building techniques | Asked By Tim Ward | Nov 24 11
0 Answers

Pflogistons....and Kitchen experiments

Some "half-baked" Food for thought...

Table-top (Kitchen) experiments/demonstrations....

Explanation of Diffusion and Osmosis

some cool Molecular Graphics

In Energy efficiency and durability | Asked By John Brooks | Dec 3 11
4 Answers

Do we insulate the built-up, sloping space above an insulated roof deck?

We have a flat roof deck above living space, and are building the surface drainage slope up with sleepers, etc., above the plywood deck (with more plywood, and waterproofing above the sloped area). This creates an at-present uninsulated (and unvented) area between the 2 layers of plywood. Should this be insulated?

In Green building techniques | Asked By Elizabeth K Suzuki | Dec 2 11
15 Answers

Passive Solar Lighting

Check this out... pretty impressive!!!

In General questions | Asked By Armando Cobo | Nov 30 11
8 Answers

How should we insuate a steel header?

We are putting a 2" wide rolled steel curved header in a 2x6 wall. Our thinking is that we need to position this header as close to the inside as possible with as much ISO foam to the outside as possible to prevent condensation on the steel. We've decided to use 2-1/2" of ISO which only gets us R16.25 if my math is correct. This allows us to put 3/4" of wood on the inside of the steel so we have something to fasten interior trim to. There is 1/2" Zipwall exterior sheathing. There is no exterior foam sheathing.

In General questions | Asked By Roger Rood | Dec 1 11
2 Answers

In a mixed Midwest climate, is foam board insulation under siding a bad thing?

I was talking to a contractor in my area about my siding options and I asked him if when re-siding my house I could add an inch of foam board insulation under the siding. My walls can get pretty cold in the winter months, after all.

He told me that it would be a BAD move and that my house would rot from the inside out due to condensation and moisture building up.

In General questions | Asked By Jason Schaffer | Dec 1 11
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