This will help determine how the shingles will lay on the roof width.
Proper flat roof installation.
Codes also recognize the challenges to meet this criterion in reroofing of existing buildings.
For a flat or nearly flat roof use double coverage although a torch down modified bitumen or epdm roof is a better solution.
Most asphalt shingles are 3 feet 91 4 centimeters in length.
Extend the front edge of the drip edge so it runs off the roof and into the guttering.
Allow space for the edge of the vent opening where it will rest on the roof.
Working with a helper expect to spend half a day installing flashings and roll roofing for a 700 square foot roof with modest complications.
Attach drip edge along the edge of the roof with roofing cement.
An important part of a healthy home and a complete roofing system is roof vents.
Flat roofs may seem untraditional but they re actually prominent on homes in the southwest united states or any arid region.
If you don t place the drip edge properly.
Measure the length width and rise of one section your roof.
Prepare the roof by tearing off the old shingles or by preparing for a reroof.
First measure the length and width of one section of the roof then measure the distance the roof rises from the lowest point to the highest point.
Model building codes and good roofing practice have established a minimum slope for roofs at 1 4 12 running inches.
From there the flat roof system you choose will determine the materials you apply.
Advantages of proper roofing ventilation.
However flat roofs are known to leak more often because water doesn t roll off the way it does on pitched roofs instead it just.
If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row.
In many cases it makes sense to remove an old or dilapidated roof and install a metal roof that is better able to withstand the elements.
Measure the length of a shingle as it lies across the roof.
When determining the placement of the roof vents measure the vent housing and mark off the space on the roof.
Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.
The drier weather of these regions means architects don t need to worry as much about water stagnating and causing roof damage.
The good news is that there are many different solutions in terms of installing metal roofing panels including tin aluminum and steel.
Before you can begin to update your roof you will have to get an accurate measurement and order your materials.