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Finding the Insulation Sweet Spot
A builder in Montana wonders whether new tests should be conducted to find the point of diminishing returns for insulation
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Putting the Duct Back in Ductless
A would-be HVAC designer wonders if a ductless minisplit head can be hidden in a closet and connected to conventional ductwork
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Fixing a Hot-Water Problem
A GBA reader who just installed two new tankless water heaters wants to know why he has to wait two minutes for the hot water to reach his faucet
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Rebuilding in Tornado Country
Devastating storms in Oklahoma spark a discussion about the most appropriate type of construction for the region
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How to Insulate a Flat Roof
An architect looks for the best way to insulate a flat roof on a contemporary house — at a price his clients can accept
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Pondering an Attic Conversion
Adding spray foam to the underside of the roof sheathing will turn a vented attic into a conditioned space — but will it also create problems?
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How to Deal With a Vapor Barrier Edict
When a local code inspector insists on an interior polyethylene vapor barrier, plans for a simple addition to a Canadian home suddenly get more complicated
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Does Autoclaved Aerated Concrete Make Sense?
An Atlanta couple decides between AAC block and conventional wood framing for their new house
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Insulating an Exposed Floor
Why are there signs of condensation in the insulated joist bays of this house on piers?
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Just How Big Should a Photovoltaic Array Be?
Some residential PV systems will produce substantially more power than the house needs