Using Styrofoam For Flate Ceiling Roof Insulation

Also called styrofoam insulation this is the least expensive material.

Using styrofoam for flate ceiling roof insulation.

Engineered for use on heavyweight decks e g. Each type comes with unique advantages. It provides r values that range from 3 6 to 4 2 per inch. Insulated roof assemblies can be vented or unvented.

I used 20 bags which is the minimum purchase for. The styrofoam insulation that home depot carries is only rated for r 5 per inch. Reinforced concrete with a ballast layer of gravel or concrete slabs styrofoam brand roofmate insulation helps the roof membrane maintain a steady temperature minimizing the harmful effects of freeze thaw cycles weathering and physical damage during and after construction. I am going to install pine barn board but curious if 2 rigid styrofoam sm i have surplus sheets leftover from another project installed and taped sealed flush or level between the roof truss will be adequate.

Roof insulation materials to avoid. Save money by installing fiberglass insulation and framing out roof slope using osb board substrate. On roofs styrofoam can be cut and used to provide appropriate drainage. Styrofoam insulation is also used as floor insulation and roof insulation.

Shingles are then able to be installed over that. I just insulated my attic this weekend with blown in cellulose insulation and achieved between r 30 to r 45 for about 0 42 sq. The roof is 2 4 vaulted ceiling with adequate ventilation throughout. Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch.

That means even a 2 thick piece will only give you r 10 for 0 96 sq. Senior engineer manager at icynene john broniek makes the case for the unvented attic assembly and why insulating the underside of the roof makes sense. It can also be installed in a log cabin. Products with a higher r value have a higher cost but have an increased capacity to resist heat flow and therefore provide greater insulation.

Leave an air gap between the roof sheathing and the board. The quest for greater energy efficiency in buildings has led to increasing interest and need for insulation improvements in hvac equipment more airtight construction new materials and assemblies. There are lots of different ways to insulate this type of roof but one of the best methods calls for the installation of rigid foam insulation above the roof sheathing. Press the cut insulation board to fit between the rafters or joists.

There are at least two good reasons why this approach makes more sense than installing the insulation under the roof sheathing. Foil insulation is a radiant barrier and it works by.