You aren't the sole man or woman with this particular issue. For individuals who (such as you) are concerned about The difficulty, There are 2 alternatives:
(d) There might be enough air leakage with the "soffit" and ridge to deliver air stream that acts how a air flow gap ordinarily would.
Till just lately, building codes essential that insulated sloped roofs consist of air flow channels instantly underneath the roof sheathing. A lot of builders however adhere to this time-analyzed method.
Hence the issue is: seal the stucco vents and increase the spray foam roof and don't worry about condensation? There may be hardly any very low-hanging fruit within our style of development, especially on current households, Which is the reason folks are becoming sucked in to the spray foam roof fraud.
If you intend to create a ventilated insulated sloped roof assembly, select a sort of air flow baffle that could be set up in an airtight fashion. Web-site-crafted baffles are ideal.
If you wish to create an unvented insulated roof assembly, you almost certainly don't want to disturb the tile roofing. Which means that probably the most correct insulation can be spray polyurethane foam. Obviously, the prevailing insulation ought to be taken out before you install the spray foam.
No matter if you decide to really make it vented or unvented, get the main points proper — mainly because just about every cathedral ceiling offers alternatives to generate large errors
I don't have lots of room over or down below the roof structure for insulation / venting. Would a flash / batt unvented assembly do the job under The only sheathing deck? My insulator has carried out Several of these regionally.
On an unrelated subject: The Cold Local weather Housing Exploration Heart has made a video clip (below) displaying 1 technique of creating an insulated cathedral ceiling. The strategy proven inside the video clip is especially suitable for builders in climates subject matter to ice dams.
three. Applying ongoing Ice & Drinking water Protect is sometimes dangerous, nevertheless it's Okay if you are adhering to the PERSIST strategy and Placing all your insulation read this on the skin of the peel-and-adhere. The tactic can get the job done, but you may need a lot more foam on the outside of your respective roof.
Your system to set up a stack of rigid foam rectangles in each rafter bay is called the "Minimize-and-cobble" approach to insulation. It is actually a method often chosen by homeowners, but never ever preferred by insulation contractors.
For your roof assembly above the cathedral ceiling, does the stack-up below capture all The weather I would need? 2x8 pine T&G (by now in position, continues to be as being the finish ceiling)
I purchased a disaster of a home that was partially remodeled, it's in Zone sixteen (a California designation much like IRC zones). It has a six/12 vaulted ceiling over the dwelling/kitchen area space. The roof is held up by two extensive beams that run four toes out parallel to the ridge , thus there is not any straight air path a just how around the peak ridge beam.
I am opening up my dwelling and setting up cathedral ceilings, I just wanted to verify my plan given that I obtained 2nd views looking through An increasing number of about this. My original final decision was to select a vented roof method and R38C batts. I read through quite a bit about the various solutions and it nevertheless seems to me that this is the greatest. Livint in Atlanta GA We now have to deal with both sizzling humid summers and cold winters, so humidity Management is a dilemma, That is why I think the vented approach is the best. Anyhow, I am all the way down to the rafters and roofdecking and furred out the existing 2x6 with six" metallic studs, so I've about 11.five" for insulation. Mt strategy was to produce a constant air flow under the roofdeck, my problem goes in direction of to make use of baffles, xps board build baffles or insect display screen nailed at furring strips to allow to the airspace.