Hot Roof Design Evaluation

A hot roof contains the highest r value because there are no chances for air to leak.

Hot roof design evaluation.

A good roof pitch would be atleast 30 degrees although traditional vernacular samples may go as high as 45 degrees which i think is better. The term hot roof is something of a misnomer as the attic space will only be a few degrees warmer than in a traditional roof. This article describes various 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. A system most likely to be found in newly built homes.

Hot roof design hood roof. There are examples of bahay kubo with the house to roof ratio of one is to three meaning the height of the walls of the house is one third the height of the roof which makes for very cool interiors since the inhabitants are very far from the. The unit of measurement for insulation is called the r value. This definition allows simple unvented roof design just don t install vents in a previously recognizable climate zone ashrae s hot humid zone.

These roofs have some pros and cons as explained in the article. 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. The bigger the r value the better it will insulate your home. However this also allows cold air to enter.

This article series about roof and ceiling ventilation describes. This allows air to circulate. Perks of a hot roof. Un vented roof solutions hot roof design problem solutions.

A cold roof design usually leaves a 50mm gap between the top of the insulation and the roof deck above. A powerful argument can be made for unvented roof construction in hot humid climates in order to control interior moisture. Here we used the regular style sheathing rather than insulated r sheathing once the panel seams are taped the roof is dry. As a result this type of roof is known as a cold roof.

The r value measures how well insulation is able to resist heat going through it. The roof needs to withstand weather elements such as rainfall snow strong winds and sunshine. Practicality is also enhanced. Bonnet roofing systems are basically a mansard roof backwards.

If you live in a rainy region for instance consider having a sloped system which will reduce pooling. Flat roofing systems are more appropriate for places that have hot and dry weather. 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. Hot roof designs for un vented roofs aka dense packed insulated sloped roofs.