Proper Shingles Fir Aluminum Patio Roof

Anchor a ledger to a masonry wall with expanding anchor bolts begin by marking a line across the wall for the ledger s top edge.

Proper shingles fir aluminum patio roof.

A shingle roof covering will remain waterproof only under certain conditions. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. The patio s roof can make an architectural statement coordinate with the home s existing roof or be entirely different the materials used on it should correspond to the overall design and use of the patio. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

Except for special cases the ratio of ventilation openings to insulated ceiling surface should be at least 1 300. The tables below give maximum spans for rafters and beams. Determine the minimum slope of the roof based on the roofing material. Even though a patio is often hidden in the back of the house its design and roof should coordinate with the home s exterior color for a cohesive unified look.

Using corrugated metal also allows me to reduce the degree of slope or roof pitch needed to a mere 10 percent or a 1 to 10 pitch. These shingles are appropriate for pitches as low as 4 12 pitch all the way up to a 12 12. This meant the patio cover could start at the edge of the house s roof at a height of eight feet and slope down to seven feet leaving a clearance of more than six and a half feet between the lowest part of the frame s headers and the ground at its outer edge. The roofing materials most often used for these pitches include asphalt composite shingles.

Also called drip edge flashing or d metal they serve a vital function by directing water away from the fascia and into the gutter. Drill holes for the expanding anchors every 16 inches or as specified by local codes insert the anchors hold the ledger in place and tap it with a hammer to indent the anchor locations on its back face. Traditional 3 tab shingles made with asphalt composite are the most popular type of shingle and are the most flexible in terms of adapting to many roof pitches. Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.

Let s take a look at the most common types of metal roofs for houses. Third to ensure adequate airflow the total area of ventilation openings required will depend on the type of roof. Metal roofs generally can run from 120 to 900 per 100 square feet one 10 foot by 10 foot area or a square of material while asphalt shingles will be between 100 and 200 per 100. The figures are based on quality materials.

Drip edges are metal sheets usually shaped like an l installed at the edge of the roof. The minimum pitch for. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.