Building any roof is quite easy if you follow a few simple basic rules of good construction techniques and safety. Depending upon what you are roofing, the steps can be quite different Let’s start with a small shed project. A very quick roof can be installed using sheets of fiberglass panels. These panels vary in width but the most common sizes are twenty-four and thirty inch wide panels. Thirty six inch panels are available at some retailers as well. Lengths are generally twelve feet but eight foot and ten foot long sheets are also available.
Roof framing generally falls into two types or styles. Standard American framing and trusses. Framing members for roof rafters are sized according to the height, slope and span of the roof. A small shed may be framed with two by six or two by eight rafters where a house will have two by ten and two by twelve rafter sizes. The shallower the roof slope the larger the framing members used to carry the roof and snow loads. A flat roof roof is possible but requires the use of beams and horizontal framing to carry the roof loads. Usually a sloped roof is far more prevalent.
Standard framing will consist of multiple rafters and a ridge beam. A much quicker frame is to use a shed style framing system. This requires no ridge beam, can be installed by one person and with no ridge is less costly as well. It is desirable to obtain a four on twelve slope for your roof. That means the roof will drop from the high side to the low side by four inches per foot of travel. If your shed is twelve foot wide, then the drop should be forty eight inches. If your slope is less than that, say three on twelve or two on twelve, you will have to use larger rafters and a product called rolled roofing in lieu of standard shingles. This helps prevent ice backup under the shingles due to the flatter roofs lesser ability to shed water quickly. roofing toms river nj
Once you have your framing completed one of the fastest roofs to install is plain plywood with rolled roofing. If you wish something more eye appealing and the ability to let light into your building, use fiberglass sheets as discussed in paragraph one. These go up quickly and once nailed into place, become a finished product. They are inexpensive and require virtually no maintenance.
Fiberglass roofing panels require a slightly different framing method than conventional roofs. In addition to the standard rafters or trusses you must install what are known as Girts. Typically two inch by four lumber they are installed in a continuing line perpendicular to the rafter framing at two foot intervals with one at the top and one at the bottom of the roof edges and two foot spaces or less in between. The fiberglass panels will span across the girts and the girts will provide adequate places to fasten the panels. If a panel is not long enough to span the entire roof, panels may be lapped over each other and by using lap sealant, provide a very sturdy roof. Panels are usually fastened with ring shank nails and a rubber grommets to seal nail holes from seeping in water. Screws are quite often used as well as they will not back out or loosen over time. Cost is a few dollars more but much less maintenance later on.