You can usually see the underside of plywood decking from the attic.
Multi layer roof exclusion.
There is ordinarily a limit on the number of layers of shingles that are allowable for coverage.
Mine seemed to oxidize almost overnight.
Here are the layers of a roof in order of application bottom to top.
Two layer pitch roof description rafters at 400mm centres u value superquilt 2 layers with 40mm insulated plasterboard xps 1 070 m 2k w 0 18 w m 2k superquilt 2 layers and 50mm pir 0 022 w mk 0 15 w m 2k.
It is also very noisy in the rain.
The purpose of such practice is the elimination of thermal bridging prevention of thermal loss at insulation joints reduction of moisture migration into the roof system and reduction of membrane splitting all benefits provided by multiple layers of roof insulation.
It provides structure by tying the trusses and joists together.
If the roof has multiple layers typically the insurance company will only insure the top layer.
Many roof decks were designed to handle only one layer of shingles.
Homeowners must also be cognizant of the portion of the total home insurance that would be available for covering expenses with the roof.
Often there is a problem with the first layer of shingles that was not apparent.
When installing two layers of superquilt a 38mm air space should be maintained between layers at all times.
Multiple layer roof limit.
So let s say we have a hail storm and the roof takes a beating.
New construction exclusions you re classified as a re roofer because 90 of your business comes from re roofing homes due to hail damage.
A common exclusion doesn t cover any work you did prior to your policy period.
Decking most often made out of plywood this roof layer is installed over the framing in a typical roof install.
If an additional layer of shingles is added to the roof then that too could be excluded.
If it needs to be replaced the insurance policy will only cover the replacement of the top layer.
Actual cash value roof.
A second layer of shingles only complicates the job when a roofer is trying to fix a leak.
They both have their pros and cons.
Multi layering of roof insulation.
Certainteed supports the industry standard recommendation for multiple layers of roof insulationinstalled with offset staggered joints.
While there is no coverage for the property damage to the insured s roof joists if the roof leaked or caved into the house and wood flooring on other floors was damaged as a result exclusion k would not apply to that other damage and absent other considerations the insured could have coverage for liability for the damage to the wood floors.
Adding a second layer could compromise the structure of your roof.
The fiberglass roof was easier to clean but forget about trying to keep any type of gloss on it.
