Roofing Ok To Leave Old Underlay

Is roofing felt required.

Roofing ok to leave old underlay.

Roofing in the rain. Over a long and i mean long period of time the sun heat will dry out the. For starters it s a bit on the thicker side. Roofing underlayment roofing felt requirements.

Roofing underlays are one of the most important elements of a roofing specification and choosing the right product is essential to ensuring the finished structure is weather resistant and provides years of trouble free service. I recently had a roof re felted. I know its tempting because sometimes the shingles come right up and leave the felt nicely intact. What type of roofing underlay should i use.

When i sell a roof its in the contract to remove all exsisting shingles and underlayment for inspection and renailing any loose plywood. Felt details for various roof slopes amp. He then placed an underlay and a minereal top coat. And that s actually better when you re dealing with old roofing as it adds an extra layer of weather proofing overall.

The roofer was to strip of all the old felt but left a layer on. And as someone else posted you need to apply the ice. If the underlayment is old and deteriorated it won t protect your roof deck from water that gets past the shingles. What to do if the old roof is not straight if the existing roof has wavy horizontal lines you can take out the waves by snapping a horizontal line 1 2 inch below the shingle bottoms of one course.

Install a course along the snapped line then install succeeding courses using a guide or a snapped line. It is typical for the roof to be in this condition for 30 60 days while other phases of the construction are completed. Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a. If we only performed roof installations during dry weather we d have nothing to do for six months of the year.

Roofing during wet weather is just part of the job in the great pacific northwest. This distinct feature along with its solid safety features makes it the best roofing underlayment for older homes. The old layer of underlay was raised and in bad condition and the roofer cut it in long lines in lots of places and nailed it down. This article series discusses roofing felt specifically addressing the roofing code or roofing manufacturer s requirements for use of an underlayment such as roofing felt tarpaper or other underlayment products beneath asphalt shingles and other.

In snowy climates most new roofs these days get an ice and water shield a rubbery moisture membrane applied to the sheathing along the eave to protect against ice dams. Walkig on the roof now the felt feels soft. Sometimes called roofing felt underlayment roofing tar paper or roll roofing this is a layer of protection installed between the roof deck and the roofing shingles.