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.
Proper shingles fir aluminum patio roof.
Third to ensure adequate airflow the total area of ventilation openings required will depend on the type of roof.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.
Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.
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.
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.
The minimum pitch for.
Let s take a look at the most common types of metal roofs for houses.
The figures are based on quality materials.
Determine the minimum slope of the roof based on the roofing material.
In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.
A shingle roof covering will remain waterproof only under certain conditions.
These shingles are appropriate for pitches as low as 4 12 pitch all the way up to a 12 12.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
The tables below give maximum spans for rafters and beams.
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.
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.
The roofing materials most often used for these pitches include asphalt composite shingles.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
Match roof material and use appropriate slope match the roofing on the covered porch with the main roof.
Fastening to masonry walls.
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.
Except for special cases the ratio of ventilation openings to insulated ceiling surface should be at least 1 300.
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.
