Hot Roof Design Roxul

The bigger the r value the better it will insulate your home.

Hot roof design roxul. We agree that avoiding sheathing rot is critical and that air permeable insulation such as fiberglass or cellulose cannot be used alone. Unvented roof assemblies should be insulated either with air impermeable insulation rigid foam or spray polyurethane foam or with a combination of foam and air permeable insulation. If you have been considering a new roof installation looking into adding insulation to your home or are planning to build a new house you may have heard people talk about hot roof and cold roof systems. Used as a roof insulation or insulating cover board over other insulations rockwool toprock dd is a high density stone wool insulation board for low slope 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. Meadowlark builders co founder doug selby explains what a hot roof is and how it can be used in the design of a passive solar home. Hot roof designs for un vented roofs aka dense packed insulated sloped roofs. Foam free don t stay stuck in the sci finightmare of foam foam foam.

We re big fans of fine homebuilding. Martin s post focuses on the marketing of owens corning 039 s propink unvented attic insulation system. Using roxul safe 45 with our rockwool batt insulation creates a high density party wall system that improves sound dampening and fire performance. If you don t want to use sips or nailbase read this article tolearn the four basic approaches to insulating unvented roof assemblies.

Bonnet roofing systems are basically a mansard roof backwards. Insulating unvented roof assemblies. Roxul safe lightweight semi rigid stone wool insulation for fire and sound. Roxul safe 45 is a semi rigid stone wool insulation board that is specifically engineered as a fire blocking material for concealed spaces of multi unit residential buildings.

Hot roof design hood roof. A hot roof contains the highest r value because there are no chances for air to leak. The r value measures how well insulation is able to resist heat going through it. Likewise referred to as kicked eaves a hood roof has 4 sides with a high top incline as well as a much more mild reduced incline offering cover around the sides of your home for a veranda.

The unit of measurement for insulation is called the r value. In the most recent issue of fine homebuilding martin holladay wrote a piece on insulating unvented roof assemblies. However you may not be familiar with these concepts particularly what they mean and the pros and cons of each.