Pitched Felt Roof Construction

Hi dan a couple of roofing questions.

Pitched felt roof construction. The pitch of a roof is nothing more than a ratio that indicates how much rise there is in the roof over a 12 unit horizontal distance. The actual process of putting down the underlayment will be one of the fastest parts of the entire roofing process. When a reference is made within this rule to a federal statutory provision an industry consensus standard or any other technical publication the specific date and title of the publication as well as the name and address of the promulgating agency are listed in rule 4101 1 35 01 of the administrative code. These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof.

The pitch of a roof is arrived at by dividing the vertical rise and its horizontal span or what people in the roofing industry would refer to as the slope. For every 12 horizontal feet the roof changes 5 feet in vertical height. Roofing felt installation details omitted felt felt specifications for various roof pitches or slopes reader questions on roofing felt installation specifics june 28 2014 anonymous said. For roof slopes from two units vertical in 12 units horizontal 2 12 up to four units vertical in 12 units horizontal 4 12 underlayment shall be two layers applied in the following manner.

Apply a 19 inch strip of underlayment felt. Installing the roofing felt does take care but can go very quickly. Maximum ultimate design wind speed vult 140 mph. How to calculate pitch.

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Maximum ultimate design wind speed v ult 140 mph. Builders argue its not a problem. Although ceramic tile roofs are expensive they can have a life span of over 100 years.

1 we often see roof felt stopped short of the eaves. It improves look and uniformity. Roofing felt prevents the deck from being exposed to the elements before or while the shingles are being applied. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.

4101 1 15 01 roof assemblies and rooftop structures. It is often compared to slope but is not exactly the same. Ikopro solvent free water proofer is an easy to use bitumen based emulsion for roofs. Roof pitch in layman s language simply refers to the steepness of the roof.

Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed.