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Severe ice dams, eaves to ground in Poughkeepsie NYHot Roof Designs for Cool or Cold Climates
Ice Dam & Leak Prevention, Heating / Cooling Effects in Hot Roof Designs

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Hot roof designs, aka "dense-packed" insulated sloped roofs:

This article describes various cold-climate building solutions for un-vented cathedral ceilings and similar under-roof spaces, offering advice on how to avoid condensation, leaks, attic mold, & structural damage when roof venting is not possible.

This article series about roof and ceiling ventilation describes inspection methods and clues to detect roof venting deficiencies, insulation defects, and attic condensation problems in buildings.



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Design Suggestions for Unvented “Hot” Roof Designs Where Venting is Difficult

As explained in Best Practices Guide to Residential Construction, chapter on BEST ROOFING PRACTICES and as discussed
at COOLING LOAD REDUCTION by ROOF VENTS,

In cathedral ceiling configurations where it is difficult to provide ventilation, some builders have eliminated the vent space, relying instead on careful sealing of the ceiling plane to prevent moisture problems. While experts concede that this should work in theory, most caution that it is difficult to build a truly airtight ceiling assembly.

Also, cathedral ceilings are slow to dry out if moisture problems do occur, whether from condensation or roofing leaks. If a hot roof is the only option for a section of roof, take the following precautions:

-- Adapted with permission from Best Practices Guide to Residential Construction.

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Continue reading at HOT ROOF DESIGN vs LEAK RISKS or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

Or see ICE DAM LEAKS

Or see ROOF ICE DAM CURE: Comparing Two Houses

Or see ROOF FRAMING TIES & BEAMS for a discussion of proper framing of a cathedral ceiling

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HOT ROOFS vs VENTING in COLD CLIMATES at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

INDEX to RELATED ARTICLES: ARTICLE INDEX to ARTICLE INDEX to BUILDING VENTILATION

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