building a rooftop deck above a cathedral roof

How to Build an Insulated Cathedral Ceiling - GreenBuildingAdvisor,Nov 18, 2011 ... This article will discuss insulated sloped roofs. The methods described here can be used to build an insulated cathedral ceiling over a great...

Cathedral Ceilings & Un-Vented Roof Solutions: how to avoid ...,Worries about the hot roof un-vented Cathedral Ceiling Designs How to ... damage and/or mold over the life of the building, and may give shorter roof ... air path between the insulation and the roof deck under the cathedral ceiling. ... Adding rooftop insulating foam is a common practice on flat roof commercial buildings.

How to Install Rigid Foam On Top of Roof Sheathing ...,Apr 3, 2015 ... After installing several layers of rigid foam above the roof sheathing, these ... Image Credit: Image #1: Green Building Advisor - Alex Cheimets job ... However, most cathedral ceilings and low-slope (flat) roofs are insulated roof ... keep the average temperature of the roof deck sufficiently above the average...

RR-0404: Roof Design | Building Science Corporation,Sep 15, 2004 ... In vented cathedral ceiling assemblies a minimum 2-inch clear airspace is recommended ... Where rigid insulation is installed above the roof deck, .... Figure 11: Unvented Flat Roof AssemblyThere is no potential for...

Unvented cathedral cathedral roof Unvented cathedral cathedral ...,Figure 11: Unvented Flat Roof Assembly High Density Spray Foam ... typically necessary install rigid insulation above the roof deck or install air ... insulations. Joseph Lstiburek, « Undertanding attic ventilation », Building Science digest. 102...

Theory and Practice for Attics and Cathedral Roof Slopes in Cold ...,underside of the roof deck in an attic ... find adequate attempts at making a complete, continuous air barrier (How often have you heard of .... Both vented attics and cathedral roof slope ventilation spaces suffer from a number of other .... In cathedral slopes, high-rise ridge vent caps that have outlets above the design snow.

Understanding Attic Ventilation | Building Science Corp,Oct 26, 2006 ... In vented cathedral ceiling assemblies a minimum 2-inch clear airspace is recommended ... Where rigid insulation is installed above the roof deck, or air .... Figure 11: Unvented Flat Roof Assembly High Density Spray Foam.

A Crash Course in Roof Venting - Fine Homebuilding,Jul 14, 2011 ... You can build an airtight entry attic, but you should know that the more ... or mechanical purposes, or if a home design calls for a vaulted ceiling, ... for the roof deck above the space to be vented continuously from the ... If you choose to vent the roof deck, then be serious about it and .... Installing Rooftop PV.

Two approaches for insulating cathedral ceilings and flat roofs (C ...,No need to drywall over for fire protection--Building Products: Fire-beating buffer insulation spray from the TOH .... Deck for a thick roof Rigid-foam insulation installed above the roof assembly can create ...... Image result for flat roof deck detail.

Dense Pack Cellulose Cathedral Ceiling Assembly ...,... dense pack cellulose cathedral ceiling/flat roof systems using Intello ... Foam above the roof deck outperforms foam between the rafters, since...