As we just covered flat roofs are much less weather resistant than pitched roofs.
Roof over flat roof.
Further note that the 3 layers of 2 inch rigid.
This could mean flat roofs may not raise the same red flags they used to.
We will do a quick overview and if you d like to learn more check out our pages detailing each roof type.
Flat roof replacement options.
Flat roofs are hard to replace.
Flat roofs aren t completely flat and that allows water and ice to slide off easier.
Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs.
Whenever i install decking over a roof i make sure the framing is structurally sound and properly pitched to.
Since flat roofs need more maintenance and are more prone to leaks you will need to make sure to fix all leaks and issues before installing a pitched roof over the flat roof.
Flat roofing is not actually flat.
The sleepers aren t fastened in place and the floor floats.
There are many ways you can replace your flat roof and we won t go into detail of all of them here.
Metal is one of the most popular materials used for flat roof replacement.
Either way the roofing has to be right.
Over roof insulation the gable overhang has been cut flush with the wall sheathing.
But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
It has a very low slope between 1 4 to 1 2 inch per foot so that it drains water.
Flat metal roofs can last for almost 35 years in ideal conditions.
Before you put on the new roof you ll need to remove the plies or layers of fabric that make up the old roofing with a spade.
Framing the roof place the sleepers.
Flat roofs get worn out over time but luckily they re fairly simple to replace and you don t need a lot of experience to get the job done.
Also note that a new fully adhered membrane is installed on the original roof deck replacing the one installed 17 years ago is folded down to catch the top edge of the wall water control layer.
Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down.
You can also read this post about what factors you should consider before making a flat roof.
Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option a properly installed layover roof can look and function as well.
Make sure to wear long protective clothing and safety glasses during.
Installing a new roof with siding is the best idea.
We put a flat metal roof over the original flat rook of our 1978 single wide 9 years ago and haven t a single issue and we get quite a bit of snow.
But such a low slope holds snow and water much longer than a steeply pitched roof and therefore needs a very different material to stay watertight.
