rigid foam ceiling

Rigid foam insulation on ceiling - GreenBuildingAdvisor

The approach you suggest is used all the time in New England and it won't cause any moisture problems. There is a small risk that over a long time-frame -- say ten years -- the rigid foam will shrink popping the tape used at the seams. That's why taped rigid foam may not be the best choice as your interior air barrier.【Get Price】

How to Glue Rigid Foam Insulation to a Ceiling

Rigid foam insulation is one of several options for insulating a home. Use a utility knife to cut the insulation along the marked lines so that it will fit the space between the joists. Squirt construction adhesive in a zig zag line in between the joists and let it sit for a few minutes to get tacky.【Get Price】

Five Cathedral Ceilings That Work - Fine Homebuilding

The rigid foam layer limits thermal bridging through the rafters and keeps the roof sheathing warm (and therefore dry) during the winter so this is a high-performance way to create a cathedral ceiling. Note that this type of roof assembly should not include any interior polyethylene; it’s best if the assembly can dry towards the interior.【Get Price】

Insulating A Cathedral Ceiling With Foam Board | Building Advisor

A: Assuming you have full access to the joist spaces from below you could certainly spray foam up against the roof sheathing. In general closed-cell foam is the best choice for unvented cathedral ceilings. It is also one of the most expensive and most building inspectors will not allow it to be left uncovered (for fire-code reasons).【Get Price】

Insulating Cathedral Ceiling with Foam Board - Home.

Spray Foam – Using spray foam would be an excellent option. In that situation the foam would be sprayed directly to the backside of the roof sheathing resulting in an un-vented roof. This type of un-vented roof has proven reliable when properly installed. This is by far the most expensive option.【Get Price】

How We Turned Our House into a Giant Foam Box Part II.

Phase 1: Rigid foam (3 inch) ventilation Chris wanted to ensure that the finished ceiling/roof assembly was properly ventilated so that any future moisture that gets into the insulation (e.g. from rain) is able to evaporate. He did this by constructing long "chutes" of air running along the roof rafters allowing air to flow upwards.【Get Price】