Slate Roof Underlayment

Today underlayment is required by the international building code as well as most local codes.

Slate roof underlayment.

Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. The basics it is not uncommon to find older buildings with slate roofs that continue to perform very well with no underlayments at all. Item 169827 model 5003002. Protects the roof and building until the slate is installed.

You also need to insist on either copper nails or stainless steel nails. Properly installed your slates won t leak. Underlayment is a popular option to protect your new house temporarily to keep the roofing subfloor etc. Some key functions of a roof underlayment.

Required by many building codes a slate roof s underlayment serves many purposes and application may vary depending on thicknesses of slate weather conditions of the area and size of slate. Organic roof felt must be used as an underlayment because it will help the slates to breathe. If you re installing wood shakes or slate use shake liner 18 in wide rolls of 30 lb. A slate roof demands top notch valley flashing drip edge flashing and ridge flashing generally 16 ounce copper flashing so that the longevity of the flashing approximates the longevity of the slates.

The length of the nails is also important. The correct length should be double the thickness of the slate. If the nails are of perfect size and length they will not punch through the roof sheathing. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.

In slate roofing water migration is controlled primarily by the angle of the roof s slope. Underlayments are installed on the roof deck prior to the installation of the slate roofing shingles. Waterproof shingle underlayment waterproof shingle underlayment wsu is a heavy peel and stick bituminous membrane that protects areas most likely to leak because of concentrated water flows in valleys. The steeper the slope the less water migration there will be.