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Other stories by Henri de Marne

  • Gutters in Cold Climes

    Q. The jury still seems to be out as to whether to install gutters in a northern climate. Could you please shed some light on this, especially as to how omitting gutters would contribute to leaky basements?

  • Q&A: Insulating Above a Plank Cathedral Ceiling

    Q: What’s the best way to insulate over an exposed 2x6 tongue-and-groove cathedral ceiling on a log house in Colorado? Some have suggested using SIPs, but others have advised that, because this particular roof is cut up with valleys and dormers, I would lose the labor savings associated with SIPs...

  • Q&A: Venting Shed Roofs

    Q: I want to vent an existing shed roof that intersects a vertical wall at the ridge. Because this roof is at the front of the house, I don’t want to place any visible vents in the roof. Is there an inconspicuous ridge vent available that can be insta

  • Q&A: Cold Roof Retrofit

    Q: A homeowner in central Pennsylvania has asked me to repair a roof with a history of ice-dam problems. The roof is over a cathedral ceiling that has only 6 inches of fiberglass insulation, with no space for venting above the insulation. Can you provide

  • Q&A: Removing Stains From Wood Beams

    Q: I have some 8x16-inch Douglas fir beams that have black stains from the steel saddles. How can I remove the stains? Can I use a solution of oxalic acid crystals?

  • Q&A: Insulating a Cathedral Ceiling Under Metal Roofing

    Q: I need to insulate a cathedral ceiling that will be finished with tongue-and-groove pine paneling. The house has steel roofing installed over 1x3 purlins. There is no plywood roof sheathing. I’m concerned about possible condensation on the underside of the steel roofing, and I would like to know...

  • Q&A: Adding Living Space Over a Deck

    Q: A client wants to build a heated room over an existing deck. I’m suggesting that we insulate the deck floor by placing two layers of 2-inch "polyiso" foam board between the existing joists. Two layers should bring the floor to the required R-30 after discounting for heat loss through the joists...

  • Q&A: Condensation Dripping Under Metal Roof

    Q: I designed an open-plan house with what I hoped would be an energy-efficient, maintenance-free roof. The house and its roof have performed well except for occasional annoying ceiling drips, which occur every winter. (A similar but not identical situation was discussed in your March ’99 On the...

  • Q&A: Moldy Basement Room

    Q: I was hired to refinish a basement game room built in 1936 in a house on the shores of Lake Michigan. The T&G paneling in the room was badly warped and the bottom 3 feet were moldy and partly rotted. I removed the paneling to find that it had been installed directly over the poured foundation on...

  • Q&A: Condensation on Ceiling

    Q: Often my customers request that we insulate vaulted ceilings when we’re reroofing. These roofs usually have 4x6 rafters, 2x6 T&G planks exposed to the inside, and composition shingles on the outside. Our technique has been to strip the roof, lay out 2x4 or 2x6 rafters over the open beam area...