Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.
Roll roofing over old shingles.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
Re roofers have tricks to lay new roof shingles over old so that the same step ups between courses are maintained but if any old shingles are cupped curled or otherwise misshapen those defects will telegraph through to the new layer.
Rolled roofing has become more and more popular in recent years.
There are three systems including glue down torch down and peel and stick.
Roll roofing generally is sold in a sheet 36 inches long and 60.
Working with a helper expect to spend half a day installing flashings and roll roofing for a 700 square foot roof with modest complications.
Many roofers recommend using laminated or dimensional shingles for re roofs because they re thicker than.
It has a life expectancy of anywhere from six to 10 years but it s fairly inexpensive.
Prepare the roof by tearing off the old shingles or by preparing for a reroof.
If you get the right materials and stick.
Roll roofing a small flat roof with greg zanis weatherwatch this quality gaf leak barrier helps keep water out of the most vulnerable areas of your roof inc.
It can be installed simply and requires only nails and roofing cement.
Roll roofing is a good choice for covering an existing roof.
It is easier and quicker to manufacture than shingles since it is a single piece and as a result it is a good deal cheaper.
A champaign roofing company can install it for a reasonable price if the homeowner does not wish to do it.
How to install a roof over an existing roof.
When compared to shingles rolled roofing is far cheaper and much easier to apply.
The roofing crew uses a red ripper roofing demolition tool to pry up cap shingles which are collected in a plastic bin along with old boot flanges and any loose shingle tabs.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
You don t need to get a professional in to apply rolled roofing to your house or shed you can do it yourself.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
Sometimes they use a standard gardener s potato fork but the best tool for the job is a red ripper integrated roofing technologies 2413 stevenage dr unit 11.
Roll roofing is made from the same asphalt composition material as shingles and it s easier to install.