Insulation Under Metal Roof Deck

Heat and cold penetrate metal.

Insulation under metal roof deck. With rising heating and cooling. Polyurethane spray foam metal roof insulation. The problem with using. But spray foam insulation used at the underside of the roof deck would need to be covered by a thermal barrier and intumescent coatings are commonly used.

On the front of the roof edges of the roofs the overhangs were extended to hide the thickness of the roof insulation photograph 10. Metal roofs are made from steel copper or aluminum panels. The greater your home s thermal resistance factor or r value the more energy efficient it is. Metal roofs are poor insulators.

Thomas for a concrete slab roof deck that has a torch down roof with no over deck insulation would placing mineral wool insulation under the deck be appropriate. Metal roofs are durable and last much longer than conventional roof deck and shingle constructions but they come with a drawback. It will help you to eliminate problems that may come when the house becomes extremely cold in the winter and terribly hot in the summer. Metal roofing is one of the most durable and long lasting roof materials on the market and can easily last for decades with little maintenance.

Insulation above the roof deck or air vapor impermeable insulation below the roof deck is needed for condensation control in an unvented roof. Does it need ventilation space btw the deck and insulation and or a vapor barrier facing oriented to the inside. The original rafters are extended but original roof deck sheathing cut back to be flush with the original wall sheathing. In climate zone 4 non marine.

They are used in commercial and residential structures to protect against weather and other exterior elements. We ll add a vapor barrier so the moist air does not flow up through the insulation and condense on the roof. Next step stainless steel drip edges and shingles. How to attach rigid insulation on the underside of the roof deck.

Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the. Traditionally we ve insulated the roof panel to try and keep the temperature on the panel from reaching the dew point. But a preinstalled membrane may be even more effective at removing condensation. An excellent fire barrier densdeck roof boards feature a noncombustible core and inorganic surface that offer greater fire protection than other conventional commercial roofing products when applied over combustible roof decks and steel decks.