If light is getting through your roof then water is getting through your roof.
How to tell your roof may need redecking.
2 dark streaks stains.
But if you want to add onto the side or change the shape you probably will spend more money on redecking it.
Under 15 years most structures should be sound.
How to tell if your deck is structurally sound.
Measure the width of the roof from the center peak to the edge of the eaves and write down the measurement.
If the planks are more than apart it may be best to resheet the roof.
Knots in the planks can cause it to break after the roof is done so if it looks iffy it is best to replace it.
Airborne algae cause dark streaks on roof decks.
4 things homeowners need to know about roof decking august 18 2017.
Sometimes referred to as roof sheathing or a roof deck this plywood acts as a foundation for the layers of underlay and the shingles on your roof and connects the roof to the frame.
As a rule of thumb.
You have inspected it and it is rot decay free.
Neighbors are getting new roofs.
Homes built around the same time period can be experiencing the same types of weather conditions can mean that your roof is nearing its useful life.
By chad collins chances are the shingles on your roof were attached on top of a plywood base.
Your joists need to be spaced 16 inches on center.
Before you turn your flashlight on see if you can identify any streams of light coming through cracks or holes in your roof.
If your roof is flat measure all the way across and skip the next step.
If you think you might need a new roof the first place to check isn t your home exterior it s your attic.
None of the joist sag.
If you do spot any light coming through your roof repair or replace your roof immediately.
So arm yourself with a flashlight and climb up under the eaves.
It s the base that lays on top of the structural trusses the bones of your attic to cover the rafters and support the weight of the roofing shingles.