That s a lot of extra weight putting added stress on the roof decking.
Shingling a shed roof over old shingles.
Damaged shingles should be removed to check the decking for problems.
Apart from the problems going unnoticed during the actual shingle over there are long term effects to consider as well.
Step 3 layer the shingles.
Roofing second layer of shingles roofing.
But before we get started one thing must be clear.
Planning and executing a good roofing job requires knowledge of every aspect of the job.
Handy home shows you universal shingling techniques that can be applied to any shed.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
Watch and see how easy it is.
Place and nail the shingles from the bottom of the roof to the top.
Begin shingling at the bottom edge of the roof starting at one end.
Ensure that each cap overlaps the one below it by 1 4 inch 7 cm.
Shingling a shed and want some tips.
All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.
Nail each side of the cap shingle into the roof.
How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.
The cap of each shingle should fall evenly in half over each side of the ridge.
Install a layer of roofing felt over the roof before you begin installing the new shingles.
If there is still some old paper stuck in place you can reuse it so long as it isn t rotting.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.
Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles.
For instance instead of just one roof on your home you now basically have two.
If it is or if you would just rather refresh it anyway strip all of it off before you add the new material.
Long term effects of shingling over shingles.
The felt should be secured every six inches with nails or staples.
Step 3 cover the old shingles.
Place the ridge cap shingles over the roof ridges.
If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles.
Using the correct size of roofing nail will ensure that your roof stays intact for many years to come and can help you avoid the common problem of roofing nails that extract themselves over time and cause you to lose shingles.