THE WEIRS TIMES, Thursday, September 30, 2010 IMPROVEMENT101 HOME
Mark@HomeAdditionPlus.com ASPHALT ROOF SHINGLE INSTALLATION
by Mark Donovan Contributing Writer
Asphalt roof shingles
are the most common type of roof shingles used on homes today. Asphalt roof shingles come in two basic styles, 3-tab shingles and architectural shingles. 3-tab asphalt roof shin- gles are less expensive than architectural shin- gles, but typically do not last as long and are less aesthetically attractive. Asphalt roof shingle in- stallation should typically be left to the professionals as working on a roof is dangerous and installing asphalt roofing shingles correctly is imperative for a leak free roof. This said, on a simple 2 plane low pitched roof, an asphalt roof shingle installation project should be able to be performed by a handy and brawny diy home- owner.
Prior to Installing Roof Shingles
Prior to starting an as-
phalt roof shingle project the roof sheathing should be inspected for any dam- age. If there are damaged or rotting roof sheathing panels they should be replaced before installing the new asphalt roofing shingles. Drip edge should then
be installed on the roof followed by one or two courses of Ice and Water shield. The Ice and Water
such as is the case in a standard ranch or colo- nial home, asphalt roof shingle installation begins with applying a row of starter shingles near the roof eaves. Starter shin- gles are necessary for pre- venting water from work- ing its way through to the roof sheathing between the gaps and notches in the first row of shingles. You can either use pre- fab’d starter asphalt roof shingles or you can cre- ate your own by simply cutting away the tabs on standard 3-tab shingles. Position the outside edge of the starter strip shin- gles ¼ to ¾ inch beyond the roof eave and drip edge, to prevent fascia board rot. Once the row of starter
Ice and Water shield should be installed along the roof eaves, near any adjacent walls to the roof, around vent pipes and chimneys, and in roof valleys.
shield should be installed along the roof eaves, near any adjacent walls to the roof, around vent pipes and chimneys, and in roof valleys. Next install roof felt pa-
per over the entire roof surface. Staple the roof paper down to the roof sheathing. To ensure a proper as-
phalt roof shingle instal- lation, use a chalk line to establish straight and true lines up the length of the roof line. To de- termine the frequency of
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chalk lines measure the exposed reveal on the shingles. Typically shingle reveal is about 5 inches. Consequently, every 5 inches establish a chalk line across the felt paper. Then install metal flash-
ing around chimneys and any wall edges that abut the roof line.
Installing Roof Shingles
With a basic roof consist- ing simply of two planes,
shingles have been in- stalled, you can begin to install the full size as- phalt roof shingles. Start installing roof shingles at the lower corner on one side of a roof plane. For example, start on the far lower left of the roof plane. Install singles in a stair like pattern working your way to the right and
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