Underlayment For Slate Roofing

Two different underlayment suggestions very confusing.

Underlayment for slate roofing. 1 re felt with 2 layers of sbs 40 lb. Also the textured fabric lets steep sloppy walkability. First layer of waterproofing and will provide extra protection for leaks should slates become damaged missing over time or poor installation. Some key functions of a roof underlayment.

For example if your slates are being installed with an exposure of 6 inches and you are installing 1x4 skip sheathing with a width of 3 5 inches then you ll have a gap of 2 5 inches between each course of sheathing. Roof felt 2 nail 2 layers tu 35 or malarkey modified sheets. Regardless of what type of underlayment you settle on i hope that your slates will be installed on skip sheathing above the roofing underlayment. Some should not be left exposed longer than 30.

Item 169827 model 5003002. Any professional can measure and nail it all over the surface within a few hours. Cushions the slate when nailed into the roof deck. Good surface for chalk lines when laying out the courses.

The underlayment roll is comfortable to sit on the roof floors and walls or anywhere you need it. Protects the roof and building until the slate is installed. The underlayment on a slate roof is often misunderstood. The underlayment also has a slip proof polymer to the bottom.

Some believe that is is the most important part of the roof when in fact it s the least important.