2 underlayment this synthetic layer which replaces felt paper covers the entire roof deck and is the second line of defense against leaks after the shingles.
Re roofing a house with metal.
You may need to cut panels to fit angles using a circular saw with a metal saw blade.
Option 2 remove and replace the existing roof panels which allows you to take advantage of adding new or additional insulation.
Metal drip edge isn t usually required check with a local building official but it gives roof edges a nice finished look prevents shingles from curling over the edge and keeps water from running directly down your fascia boards.
The cost to install a metal roof will vary depending on which type of metal is selected which manufacturer made it and the size of your home.
Metal roofing installation typical roofing construction will last somewhere between 5 and 20 years.
The average price range of metal roofing is 600 to 1 200 per square installed vs.
The average cost for a new metal roof is 11 000 with most homeowners spending between 7 858 and 14 412 depending on the size and slope or roof and the materials chosen.
An asphalt shingle roof which costs 300 to 700 per square installed.
Remove the metal flashing around chimneys vents and valleys in the roof and sweep the roof when you re finished.
Before you install the underlayment fasten the drip edge that covers the fascia on the eaves.
This type of roofing is installed in large sheets with seams that are raised and sealed tightly together to resist water.
Pry up the nails and frequently stop to shovel the old tiles into a large trash container.
To shed water away from the eave most roofers add a metal drip edge right to the roof deck covering it with the membrane.
This includes roof coverings such as shingles slate or wood shake shingles.
Metal roofing is also available in the form of shingles.
Continue adding panels until the roof is covered.
Metal roofing can work on roofs with low slopes it s often believed that metal roofing is suitable only for roofs with a steep slope but standing seam metal roofing can work fine on gently pitched roofs.
Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.
Finally in some re roofing projects a metal roof is so light roughly one third the weight of asphalt that it can be installed directly overtop asphalt shingles without overburdening the roof s.
So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt.
Option 1 apply new insulation and new metal roof panels over the top of existing panels.
If you need to re roof your house put on slip resistant shoes and a safety harness and start removing the tiles from your roof.