If you're considering a new roof installation with asphalt shingles or considering replacing an asphalt shingle roof, be aware of these common installation mistakes. The following 5 mistakes can lead to various problems that may not be resolved under the warranty.
1. Throw away old materials
Often times, new shingles are nailed to old shingles, and a defective asphalt shingle roof is something that can simply be overlaid. Nailing new strips on top of old strips is like covering a moldy piece of bread with a new slice of bread. This mistake can open up an asphalt shingle roof with serious damage. As the top layer begins to separate, an asphalt shingle roof will lack proper support and padding. Asphalt shingle roof replacement or installation projects should include turning off the old zonal colored sand.
2. Number of nails
How many nails does one asphalt shingle need? This depends not only on the asphalt shingles, but also on the slope of the asphalt shingle roof and the weather conditions in the area. That said, people make mistakes when working on asphalt shingle roof installation projects. On average, four nails are required for most colored sands. If the slope is very steep, this usually increases to six nails. All nails should be kept away from the adhesive tape used in asphalt shingles to help seal against moisture. Note that colored stone metal tiles and ceramic tiles may also have their own unique fastening needs.
3. Bad tilt
Let's talk about what we call a "bad" tilt. A new asphalt shingle roof installation requires very careful measurements to create the correct slope so that valleys and peaks meet smoothly. Various degrees can be set depending on the house design and weather conditions. However, the slope must exactly match other asphalt shingle roof slopes. Small mistakes can cause cracks that allow moisture to squirm inside. Larger errors will compromise the integrity of the asphalt shingle roof. This is especially true for flat asphalt shingle roof sections (which require careful sloping, still look flat but discard any water before it has a chance to gather). Any structured work should be performed by trained and experienced .
4. Lazy Seal
The edges and metal strips along the asphalt shingle roof installation work must be carefully placed and sealed. It's hard to spot a flash leak until the damage has been done, so it's hard to notice a bad flash. This lazy seal can spill over into underlayment decisions, and the wrong barrier can choke your asphalt shingle roof or leave it unable to defend itself.
5. Ignore the local climate
Inexperienced or low-quality asphalt shingle roof installations often overlook all the unique needs of your particular climate (and microclimate). If the temperature in your local area is particularly low in winter? Additional attic vents may be required to prevent condensation; if there is a lot of snow, this requires edge protection at the edge of the asphalt shingle roof to reduce ice dams; if there are extreme winds, zonal colored sand and lower slopes can help.
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