A. Exposed Ceilings. a. 10.5" Icynene LD-C-50 Open Cell Spray Foam(R-39) $9,200.00 OR b. 10.5" Icynene MD-C-200 Closed Spray Foam(R-60) $20,625.00 A..if equipment & ductwork are in attic. meet code requirements with foam. here in La. our code is R-30. if attic is encapsulated with foam 7" open cell meets requirements. but 7" everywhere..not up to 7" 'average' fill. this is a big thing. where insulation is less in your climate ice dams could form. B. Slope Ceiling. a. 9.25"Icynene LD-C-50 Open Cell Spray Foam(R-34) $1,850.00 OR b. 9.25"Icynene MD-C 200 Closed Spray Foam (R-53) $4400.00 A..again total fill..but how are you getting 9.25"? rafters are 2x10?? C. Overhang a. 7.25" Icynene LD-C-50 Spray Foam (R-26). $195.00 OR b. 7.25" Icynene MD-C 200 Closed Spray Foam(R-53)$660.00 why foam overhang? this would be where foam makes the roof to attic floor seal. no need to insulate overhang, unless it is a climate specific thing. D. Exterior Walls a. Certain Teed R-21 Kraft Fiberglass Insulation. $720.00 OR b. 5.5" Icynene LD-C-50 Open Spray Foam (R-20). $5,500.00 well installed conventional insulation. no gaps no voids batts split around wires, plumbing. followed up with air tight drywall approach to interior. E. Garage Walls Dividing Living. (basement level) a. Certain Teed R-21 Kraft Fiberglass Insulation. $80.00 OR b. 5.5" Icynene LD-C-50 Open Spray Foam (R-20). $600.00 don't know that I'd opt for foam here. again air tight drywall on both sides of the walls. F. Garage Ceiling. (there is a bedroom above so this makes sense) $1,550.00 a. 7.25" Icynene LD-C-50 Spray Foam. not a bad price. but if you don't foam the roofline at this area, this room will be difficult to heat & cool. one option would be the same extruded polystyrene sheathing on attic side of insulated walls. keep temps in attic from transfering into living space. tape seams, caulk to seal. G. Band Joist (In Between Joists @ Exterior Wall Pockets) a. Certain Teed R-21 Unfaced Fiberglass Insulation. $55.00 OR b. 5.5" Icynene LD-C-50 Open Cell Spray Foam(R-20). $495.00 B. band joists being well sealed even will help to keep house tight enough to cost effectively heat & cool. I'm not an advocate of foam in walls. studies show that the foam sheathing to exterior is a better savings. breaks thermal conductivity of studs, creates an air tight barrier to outside. but if you put ductwork in the attic..then having it inside a semi conditioned foam sealed attic takes care of a lot of other issues. things like oversized plumbing pentrations in the attic, oversized cuts for bath fans, supply boxes for hvac, recessed cans (just to list a few) pull attic air into the house. while trades people make lots of holes in the ceilings..they seldom seal them once they are done. other areas are thermal bypasses, fireplaces open to the attic, dropped ceilings over shower units.. moving the air & thermal barrier to the roofline instead of the attic floor makes these areas less of an issue unless you have the thermal bypass & unsealed hole police (lol)on the job, these areas are often missed. simple things like an IC recessed light instead of ICAT recessed light make a big difference. builders who have built to this higher standard of better building practices have trained crews to ensure that these areas are being addresed. without that or without someone to actually oversee the sealing of these different areas, your living space to attic have lots of areas of air communication. in a perfect world tradespeople would seal each opening. then the higher cost of foam insulation to make these building mistakes wouldn't be necessary. of course then..ducts and equipment would be inside of the space we live in..instead of stuck in attics where they work to perform in extreme temps. its too bad that the front of the house doesn't have foam sheathing & hardi on strips..but it is what it is. the goal is to build a tight house. tight enough to be affordable to live in as utility costs rise. testing the house for air leakage & ducts for ductleakage is always a good idea. if you can manage to do this during construction..when blacked in & insulated..then you can find leakage sites while trades are still there to address these areas. know that foam insulating the attic is a long payback compared to conventional insulation. in my hot humid area a 2500 sq ft house generally has a 15-18 year payback. but utility costs..when hvac is correctly sized..and not oversized, offset this long roi. if you want an unbiased agent to help with efficiency then an energy rater is a good idea. Resnet & BPI have professionals to help you decide what is affordable to you, and they work for you. not the hvac or insulator. here we only use closed cell in floors of houses with crawlspaces. I'd make sure that the open vs closed cell is correct for your climate and not just sales speak. best of luck.

Well, regarding the tree-rats if you are willing to experiment: Buy a couple bottles of original formula Pine-Sol and a package of small shallow disposable bowls. Take them into the attic and place a bowl filled with undiluted PineSol so that the bowl itself cannot be reached by children or pets (in a secured cardboard box is usually okay) every 20 feet along the perimeter and near any vents. Check every couple weeks and refill as needed. I make no promises but this has worked well for me and for several acquaintances, used in tool sheds as well as in garages, attics and crawlspaces. I'm guessing that the aroma is a deterrent, but in the past 30+ years the only times I've been invaded by critters is when I've forgotten to refill. BTW, if you have heat ducts nearby and any have a pinhole leak, the smell WILL transmit through you house! Just open windows to air it out - after you find and fix the leak.

The tax credit is for asphalt roofing shingles that have reflective "cooling granules" and meet Energy Star requirements. Since the infra-red light reflectance of the granules is largely independent of the color, it is not necessary to use white granules. Typical colors vary from light gray to medium dark brown. A light color and/or an Energy Star rating does not necessarily mean that a material qualifies for a tax credit so you will need to get a "Manufacturer Certification Statement" to be sure. Try CertainTeed Landmark Solaris asphalt shingles. http://www.certainteed.com/products/roofing/residential/designer/317920 http://www.certainteed.com/energytaxcredit/ IR reflective roofing materials will provide the most benefit in hot sunny climates where air conditioning is more critical for comfort than heating. That is not the case in New England and your roof is shaded so I find it strange that there would be a net energy savings or that a tax credit would be offered. If the additional cost of the shingles is greater than the tax credit, I can see no reason to consider reflective shingles. There will certainly be no change in the heat conducted through the roof structure from inside to outside and therefore no effect on roof ice dams. White roofs are so easily stained that they usually contain additives to inhibit biological growth. Light colored shingles will usually last a bit longer than dark colored shingles in a sunny climate. Here is a link that might be useful: Energy Star list

100K for cedar shingles? wow. There are plenty of companies that make composite shingles. (shake roofs are forbidden where I live) You also look at a composite slate tile roof. DaVinci Bellaforte -Slate-Slate gray These composite shake roofs have a 45-50 year guarantee. Bellaforte Shake in Tahoe similar home style to yours. Multi-Width Slate https://www.davinciroofscapes.com/products/slate/multi-width-slate/ How much does DaVinci roof cost? Materials prices may vary slightly depending on the location of the supplier. Installation costs can be $1.75-4 per square foot or $175-300 per square, depending on your location and complexity of the install. Overall, the average price of a Davinci roof is $5.75 – 10.5 per square foot. https://www.davinciroofscapes.com This is just one company-option. I'm sure you can check local roofing businesses in your area and get some other quotes. You have a large area to cover, so 60K + should be expected.