Pitched Felt Roof Construction

Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.

Pitched felt roof construction.

Apply a 19 inch strip of underlayment felt. Although ceramic tile roofs are expensive they can have a life span of over 100 years. Roof pitch in layman s language simply refers to the steepness of the roof. Roofing felt prevents the deck from being exposed to the elements before or while the shingles are being applied.

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 product can be used as a waterproofing coating on asphalt fibre cement sheeting concrete and bituminous roofing membranes. 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. 4101 1 15 01 roof assemblies and rooftop structures.

For every 12 horizontal feet the roof changes 5 feet in vertical height. 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. How to calculate pitch. Maximum ultimate design wind speed vult 140 mph.

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. 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. 1 we often see roof felt stopped short of the eaves. 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 8 feet in vertical height. It improves look and uniformity. 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.

Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed. Because your roof deck might not lie perfectly straight or flat a layer of roof paper gives an even uniform surface upon which you can install your shingles. Installing the roofing felt does take care but can go very quickly. 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.