In most states, you’re only allowed to have 2 layers of shingles on a roof for fire safety reasons. However, you’ll still see roofs that have 3 or 4 layers today. If you already have 2 or more layers, a contractor will recommend a full replacement.
Mark 12 inches up on the roof for the first course of shingles, then mark every 5 inches all the way up the roof to set your reveal. Do this on both sides of the roof.
These roofs are usually present due to an addition being added to a gable-type home. There are mainly two styles of asphalt shingles you can use: a 3-tab or strip shingles, and architectural or dimensional shingles. Both are installed in a somewhat similar manner.
You’ll need shingles for starter courses along the eaves and sometimes at rakes, and you’ll need shingles to cap hips and ridges. Cutting shingles also generates waste.
In most states, you're only allowed to have 2 layers of shingles on a roof for fire safety reasons. However, you'll still see roofs that have 3 or 4 layers today. If you already have 2 or more layers, a contractor will recommend a full replacement.
0:295:55How To Properly Start Shingle Courses On A Roof - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd up your Gables. First thing you're gonna want to do is take a full shingle. And you're gonna goMoreAnd up your Gables. First thing you're gonna want to do is take a full shingle. And you're gonna go flush. Along the eave starter. And flush along the rake starter.
26 shinglesStandard size shingles (12 inches by 36 inches): 29 shingles per bundle. Asphalt 3-tab roof shingles: 26 shingles per bundle.
No, you can't put three layers of asphalt shingles on a roof. In most states, you're only allowed to have two layers of asphalt shingles on a roof for fire safety reasons.
Measure from edge to edge of adjacent shingles. (Photo 3: Stagger 1.5 inches).
3:4717:55Asphalt Shingle Panel Layout Basics - Popping Lines - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf you're hanging your shingles over which we don't do here in South Florida. We don't hang themMoreIf you're hanging your shingles over which we don't do here in South Florida. We don't hang them over we have drip edge that that has a little edge on it and we lay it flush mostly due to high wind.
Asphalt shingles and most other roof shingles are typically available in bundles. For each roofing square or 100 sq ft, you will need three bundles of shingles. The average size of 12×12 shed roof is 3 squares, which typically requires 9 bundles of three-tab asphalt shingles or any other starter strips.
The most accurate way to calculate how many bundles of shingles you'll need is to get up on the roof and measure each roof plane. If all the roof planes are rectangles, you simply need to multiply the length times the width of each plane to get the square footage; then you will add up the square footage of each plane.
three bundlesAsphalt shingles are typically packaged with this in mind, but if a package of shingles covered an entire 100 square foot square, it would be too heavy to handle. So, most popular shingles are sold such that three bundles are needed to cover one square of roof area.
As mentioned above, homeowners are legally limited to two layer of roof shingles. Therefore, if you already have two layers, you'll need a full tear-off. Additionally, if your roof is severely damaged, it likely won't be able to support the weight of a reroof and will need to be torn off.
It's possible to shingle over shingles, to lay new shingles over existing ones and avoid the cost of a tear-off. If conditions are right, new shingles laid over old ones can be just as attractive and durable as shingles laid on bare sheathing.
Having multiple layers of shingles is going to make your roof hotter because the heat gets trapped between the layers, which could mean premature aging of the shingles. This is especially true if you've overlayed your new shingles on top of warped shingles. Affects inspection reports.
Plan the entire job in advance, always plan for 10% roofing materials waste in your calculations, and NEVER take any shortcuts to get the job done....
There are two styles of asphalt shingles you can use; a 3-tab, and an architectural. Both are installed in the same manner. The difference is in th...
Drip edge,Waterproof underlayment (ice and water shield for cold weather areas)Roll roofingRake edge flashingValley flashing (if you have valleys)S...
Start by applying the drip edge to the eaves of your roof. If your eave is one straight length, then pick an end, and work to the other. Use a roof...