Understanding the Process of Roofing
You'll be able to make advised decisions when hiring a
roofing crew if you understand the process, as well as the jargon used in the
roofing trade.
A moderately-sized, professionally installed roofing job
might take only 3 or 4 days. The overall process followed by the roofing
crew goes like this:
1. Remove all existing shingles, deposit them in a
roll-off dumpster. Damaged or old valley flashing and drip edging is also
removed at this time.
2. Make minor repairs on the roof if it is in good
condition. If not, replace bad wood with new plywood sheathing or 1 x 6
sheathing boards, whichever is applicable to your type of roof.
3. Install
ice dam protection in regions that
require it. Ice guard membrane is a synthetic waterproof barrier material
designed to prevent melting ice from backing up under the shingles and
penetrating through the sheathing, where the moisture can cause severe damage.
4. Lay down asphalt roofing paper over the roof sheathing. The layer of roofing paper creates an
inner barrier against water penetrating into the house.
5. Apply metal drip edging around the edge of the
roof, both the eave sides and gable sides. The metal drip edge is nailed in
place over the roofing paper or ice guard.
6. Where necessary, apply new valley flashing along
areas where two roof planes meet. The valley flashing is typically nailed to
the roofing deck and sealed with roofing caulk.
7. Apply the tab shingles, starting at the eaves
and working upward toward the peak. Where roof vents are being installed, these
are installed as the shingles progress toward the peak.
8. Apply flashing around all areas where leaks
might come into the house - against the chimney, around skylights and stack
vents, etc. Flashing installation may happen as part of the roofing
installation, occurring as the rows of shingles progress upward on the roof
deck.
9. Install the ridge vent. This continuous vent
along the peak of the roof will help air circulation in the attic space and can
be integral in exhausting hot air and preventing winter ice dams.
10.
Complete the final cleanup and haul debris
away. Have the installation inspected and approved by a building
inspector?
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