Ice Dam
-
Problematic Roof Designs
Architects and builders keep making the same mistakes when designing roofs
-
Installing Rigid Foam Above Roof Sheathing
An updated look at roof assemblies that include a continuous layer of exterior insulation
-
Henri Fennell’s Advice on Cathedral Ceilings
It’s all about the air barrier
-
Solving an Ice Dam Problem With Exterior Rigid Foam
Eight inches of polyiso, a second layer of roof sheathing, and new shingles cost the same as a standing-seam roof without any insulation
-
Fixing a Poorly Insulated Roof
A huge air conditioner and roof heating cables can’t overcome basic design flaws
-
Just Say No to (Swiss) Cheesy Attic Floors
Ceilings with lots of air leaks are an invitation for moisture problems in winter
-
Heading Off Ice Dams
An Ontario homeowner looks for suggestions on how to stop ice damming before another winter sets in
-
A Socioeconomic Context for Ice Dams
As another New England winter approaches, a few thoughts on one of the season's scourges
-
Ice Dam Basics
How ice dams form, how to prevent ice dams, and what to do if you have an ice dam right now
-
Why I Hate, Hate, Hate Skylights
Skylights have a low R-value, provide cold surfaces for condensation, interfere with roof venting, and contribute to ice dams
