Re Roofing

Re Roofing - With Ron Williams Roof Doctor:
The most common re roof scenario that we see here on the West coast is a shake conversion, where as the term implies, a shake roof is converted to a composition shingle roof. Most proposals for this type of project will look something like this:
1. Remove existing roofing and dispose.
2. Install a layer of 1/2 solid wood roof sheathing over existing spaced sheathing.
3. Install a layer of roofing felt over new wood.
4. Install new 30 year composition shingles.
5. Install new roof top flashings.
6. Remove all work related debris.
** XX Year Warranty On All Work **
NOTE: Any additional work (dry rot etc.) is $xxx.00 per hr. + materials cost.
OK, number one, good.
Two, you should know if you are getting OSB (chip) board or plywood. We use plywood unless a homeowner wants the cheapest possible, because the cost difference is minimal and it is a far superior product so this translates into a better value.
Three, you should always get and we always use #30 felt (twice as thick) as opposed to #15.
Four, good.
Five, make sure ALL roof metal is included! Heat and plumbing vents, perimeter trim metal, and shop formed chimney flashings, HVAC flashings. These last two are almost never done because they are costly. We have in house sheet metal fabrication and always include these.
Six, good.
Also, when you convert your shake roof to composition shingles, it is absolutely critical that the attic ventilation be upgraded. A balanced ventilation system will make your roof last, help the comfort level in the home and keep your materials warranty from being voided.
I think most companies will provide the majority of these items, but I also see new roofs almost every week where a lot of the items (mostly number five) were not specified and then not included. That is usually when we are called out to fix them.
You can't go wrong using Ron Williams Roof Doctor on your re roofing project. 800 – 409 - 4910