Replacing Entire Roof Shingles On Steep Slope

However shingle sealing may be a problem particularly on shaded portions of the roof.

Replacing entire roof shingles on steep slope. If a roof slope exceeds this limitation the shingles should be applied by the following recommended method complying with astm d4586. Shingle coverage three tab shingles usually carry a 20 25 or 30 year warranty against manufacturing defects. Laminated versions carry a lifetime warranty which means for as long as you own the house or for a maximum of 40 to 50 years. If you re planning to replace shingles on an existing roof there s nothing cost effective you can do to change the slope of the roof.

If the shingles fail at any point during that time span expect a check for a prorated amount. For slopes greater than 21 12 apply underlayment in the normal fashion. Slopes of 4 12 and above can use standard asphalt roofing. Replacing an asphalt roof with new shingles will cost between 5 400 and 9 000 or an average of 7 211 for a 2 000 square foot home not including old roof removal.

Pramote polyamate getty images. Cut the paper with the razor knife at the end of the roof. Use felt nails to secure felt paper to the entire roof. If all of the following are true and your building codes permit it then consider roofing over instead of replacing.

The first sheet of felt paper should be secured in line with the bottom of the roof. Stone coated metal roofing or stone coated steel roofing has a deep architectural profile and can mimic the look of asphalt shingles wood shakes or clay tiles this premium roofing material comes with warranties up to 50 years and is rated highly for resistance to winds hail and fire. In terms of installing the shingles your price quotes will be higher for any roof the contractor does not consider walkable. Secure the shingle to the roof deck with fasteners as recommended by the roofing manufacturer.

There is only a single layer of shingles already on your roof. That may vary among roofing contractors but generally it will be right about 8 12. Most building codes permit two layers of asphalt shingles on roofs with a 4 12 slope or less while some allow three layers on steeper roofs. Asphalt shingles should not be installed on vertical walls but they can be used on steep slopes such as mansard style roofs.

These shingles often cost 200 400 per square. The maximum slope considered suitable for normal shingle application is 45 degrees or 12 per foot. Roof slopes between 2 12 and 4 12 require a double underlayment application in accordance with section r905 2 7. The actual cost will vary depending on whether it is a composite asphalt shingle roof or a fiber cement concrete composite shingle installation.

Architectural shingles are a different style of asphalt shingle that are thicker than a 3 tab shingle and layered for an upscale look.