Bubble Wrap Under Metal Roofing

That will put the condensation point inside the foam where the air cant get to and thus no condensation.

Bubble wrap under metal roofing.

The metal roofing system and its expected service life the climate at the building location roof slope and geometry and ambient conditions temperature relative humidity within the building. The sun s rays on the metal roof transfers radiant heat inside making it unbearably hot and humid inside the building during summer months. Attach it to the purloins with double stick tape to hold it in place until you. A metal roof under the same conditions may stay more than 50 f cooler than an asphalt roof which saves both energy and money.

A newer option we like from ecofoil is their double bubble wrap roll insulation for metal buildings. Quality metal roofing s bubble installation is a single or double layer of polyethylene bubbles bounded to and sandwiched between a radiant barrier metalized foil and white polyethylene sheet. Bubble foil insulation adds a layer of insulating air to the radiant barrier provided by the foil. Unroll the foil bubble wrap insulation over the metal joists or purloins that create the frame for the roof.

Prodex total is composed of 13 64 inch approx. This product like sheet foil should be installed with the foil side facing the metal roofing. The 2 x4s under it will give space for air circulation to help dry the sweating. Bubble insulation is specifically designed to control heat gain or loss and prevent interior condensation in all types of metal and metal clad buildings.

Foil faced bubble wrap is composed of either one single bubble or two double bubble layers of mylar air bubbles sandwiched between two metalized surfaces. Cold winter temperatures on the metal roof turns the sheeting cold. If you must insulate near the metal use spray foam insulation sprayed directly on the metal. Long term in service roof performance can be affected by several important factors including.

3 16 or 5mm closed cell polyethylene foam covered on both sides with 0012 inch 0 03mm aluminum facing. The metal is going to sweat.