The minimum pitch for an asphalt roof for Asphalt shingles is 2/12 or more as long as you use at least one layer of ice and water shield and one layer of synthethic felt under the architectural shingles.  I would never use a three tab shingle on this low pitch roof.   Below 2/12 pitch, I would use either an EDPM Membrane or the Resisto 2 0r 3 ply roll roofing membrane system.

Recommended not less than 4:12 pitch. Also would advise in Western NC to install ice & water guard in place of standard underlayment.

If you are asking about how to repair the roof damage, then I would like to suggest you to go for insurance claim process if you are already done with an insurance of roof damage. Because the plumber will cost you more, so you take some helpful hints from the Public adjusters about how to get the maximum claim amount on the Roof damage.

A good way to add value to your house is to do home improvement. Many renovation and home additions add value to the house. Also, painting by interior painting San Jose is a good way to add value to the house. One of the simplest and most cost-effective improvement is house painting. Low-maintenance landscaping also adds value when you sell your house.

Adding the stylish furniture in home can be very effective in increasing the home vlaue. 

The pictures were very helpful - thank you.  It looks like only the first ply/layer came apart which is not optimal but minimal risk for coming apart allowing the ridge vent to come off especially if they used every nail hole during installation. The bug barrier appears to be intact and the breakage of the plywood would not interfere with that.

Many pests like raccoons, squirrels or mice crawl into the house through the attic and crawl spaces if there are no barriers to prevent them from getting in. They may have mites, fleas, bugs and other pests, which may infest your home. Therefore it is necessary to implant a proper barrier and maintain a proper ventilation in our attics. The pest exterminator New Jersey professionals may also be consulted for the same to get better suggestions.

That would really be a question for the roofer on the split wood.  As for a bug barrier; that would be a question for a pest control company but that has never been a significant issue in our experience.  It is very important that there be adequate ventilation in all attic spaces that are not heated.

The new ridge vent should have the bug/snow/rain barrier integrated into the venting system. There are probably many other areas in the attic into which "bugs" could enter, but attics do not typically make the best habitats since the temperatures can be extreme and there is no "relatively nearby" source of water for them to survive. The "integrated mesh" is more for helping to prevent wind blown rain and snow from entering the attic space and settling on whatevr lies below.

You might want to look into AB2299 for the state of California. Add additional living area and raise the value 160k-400K to all R1 Properties. We build these for a living and are seeing a 2% return rate on your investment.

Direct added value to your home:

Finish out unfinished living areas

Upgrades to bathroom and kitchen

Add additional living area

All other items completed to home have negligible value added benifits in terms of Apprasial added value.

Same as others said, Remodeling magazine's Cost Vs. Value report is a great resource!

As a roofing contractor, of course I am going to suggest an upgrade to your roofing system. And that's not just a biased opinion either. Working with a lot of realtors in our area it has been proven that the roof can be as much as 40% of your curb appeal. Especially when the system incudes things like the right color drip edge on the rakes and eaves, and high profile ridge caps. Both of those items are relatively inexpensive and can make a very noticibale difference compared to homes that don't have them. Selecting the proper type of shingle of course also plays a huge role. About 95% of re-roofs these days use a standard architectural tpye compositions shingle but picking something from the designer line can realy make your home stand apart. Then again, other rof covering options besides ashphalt shingles can make an even greater impact. 

As a GAF Master Elite Copntractor, we are partial to their line of products and I have included a link below to their designer apshpalt series.

Good luck!

http://www.gaf.com/Roofing/Residential/Products/Shingles/Designer

I agree with Chris.  The Cost vs Value report is the "go to" guide and is impartial.  Personally, I like to focus on first impressions and curb appeal.  Exterior dressings like corwn mouldings and simple shrub pruning is a great low cost way to give the home a wow factor.