Thursday, July 26, 2012
Sunday, July 22, 2012
Saturday, July 7, 2012
gun nailing just not right
The use of a nail gun might speed up the job, but productivity certainly does not equal quality. Hand nailing means that every nail is hand-driven by use of a hammer. This ensures that the proper amount of pressure is applied to each nail, promising a tight seal of the shingles to your decking. More importantly, it ensures that the nails are driven onto the manufacturers’ nail line.
There are several problems with using a nail gun to install shingles on a roof. Many of these problems are caused by inconsistency in the nail depth and pressure. Nails can be under driven, where the nail does not fully rest against the shingle causing the shingles to move or possibly even blow off during high winds. Nails that are over driven will damage the shingles and leave them vulnerable to wind and other severe weather elements that can cause weak spots, which may lead to leaks. If the nail is driven completely through the shingle, it’s not holding it in place at all. When dealing with wood shingles, it’s difficult with a nail gun because wood varies in density. There are hard and soft spots and setting the air pressure is guesswork, to say the least.
The only way to ensure that the nails are driven in properly and aligned correctly is by the use of hand nailing. Each shingle is structurally engineered to have a nail line that shows where the nail should be placed; this is the strongest part of the shingle. If the nails are not placed within that nail line, your warranty with the manufacturer is potentially void. If the shingles happen to fail due to a manufacturer error, but they are not precisely aligned on that nail line, their warranties will not cover improper craftsmanship.
When inspecting roof damage, we typically see shingles that have been damaged from previous roofers who did not adhere to the roofing standards. They were careless and trying to complete the job too quickly. Many contractors will charge more for hand nailing because it takes more time, but we believe that it’s the only wa
y to install shingles, so there is absolutely no additional charges for this service.
Thursday, July 5, 2012
BUSY BUSY
Roofing 6 days a week weather permitting!!!! Make sure you get a hand nailed roof!! gun ailing is quicker and faster but less accurate. You will thank me you get a big wind storm and your shingles stay on your roof!
Sunday, July 1, 2012
impact resistant Shingles
Impact Resistant Roofing Shingles are an option for residential and commercial building applications. Allstate Roofing believes Impact Resistant roofing shingles can be a great option for many homeowners. The Midwest receives its fair share of damaging hail storms, so this is an option worth consideration.
Between 1991 and 1995, wind and hail caused an average of $8 billion in insurance payouts each year. Wind and hail damage to roofs comprises a significant portion of this cost. Hail damage to asphalt shingles may include severe granule loss, material loss at shingle edges, and penetration.
New Impact Resistant shingle products are designed to resist damage from impact and high winds. They meet the most stringent standards for impact resistance (Class 4) set by Underwriters Laboratories (UL), and wind resistance set by UL and the American Society for Testing and Materials (ASTM International).
Several manufacturers offer asphalt shingles designed to resist the effects of severe weather such as wind and impact from flying debris or hail. Different proprietary methods are used to keep granules attached to the shingle, to prevent shingle breaking during impact, and to keep shingles attached to the sheathing during high winds.
UL 2218 classifies the resistance of roofing products to impact damage. In the test, steel balls are directed at roof samples, and damage is observed. Products that receive a Class 4 rating from UL 2218 are the most resistive to hail damage. Most major insurance companies are offering homeowner premium discounts for the use of roofing products that receive a Class 4 rating. Consult with your Allstate Roofing expert for details on these discounts.
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