9 Best Of Warm Deck Flat Roof Construction Detail Best Wallpaper JPG. Insulation above joists no ventilation required Cold deck. Throughout the course of the year the roof deck and all below it is kept at a temperature close to that of the inside of the building therefore the roof structure is protected from extremes of hot and cold lessening the potential for damage caused by thermal movement.
To use EPDM for a warm deck flat roof construction solid closed cell roof insulation such as Kingspan or Celotex should be placed on top of the roof deck rather than in between the rafters. Insulation above joists no ventilation required Cold deck. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.
This can be accomplished either because of the local climate or as a result of design principally through the use of rigid insulation installed above the roof deck or air-impermeable spray foam insulation installed.
It is the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction. Cold Roof Construction requires that a suitable ventilated air space exists above the insulation layer within which the air is constantly mobile being replenished by fresh incoming air whilst the air resident within the void space is being expelled via a natural vent action at another point. Warm RoofDeck Sandwich roof Warm roof systems benefit from the insulation sitting above the deck. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.