This inspection could take a little while.
How to identify roof spread.
Split ridge board causing rafter instability and subsequent applied horizontal thrust to the wall plates.
All buildings must be classified into one of six construction classes see number 3.
Building elements and fire resistance rating.
Immediately replace missing or torn shingles.
How to identify roof mold damage.
How building class is determined.
Roof spread is often caused by the roof timbers being subjected to extra weight weight that they were not designed for.
The key to a roof system s effectiveness is complete protection.
So fixing the problem as soon as possible is vital.
This is a crucial item to check since rot here can spread to the house s structure underneath your siding.
The problem is likely to spread nearby shingles also are ripped easily or blown away.
If looking for the obvious and common cause of roof spread then this particular issue could so easily have been missed especially when limited to a head and shoulders inspection from the loft hatch.
Roof spread occurs when there is a failure to adequately support the main rafters of the roof so as to prevent them spreading further open in a scissor type action.
Make a close inspection of both the roof itself as well as the area directly below the roof line for any wear and tear.
Factors that cause the situation include bad construction improper materials and water and rot problems.
The problems that stem from the growth of algae moss mold or mildew will have already become an urgent matter by the time internal leaks become evident.
Roof spread can be dangerous for a house and very damaging for a roof.
Look up at the gutter and if it is badly bowed and not straight walk away.
Therefore the first signs of roof spread are often cracking bulging or leaning at the head of the masonry causing bowed walls.
Go out to your yard with binoculars and train them on your roof.
Something else to look for in regards to roof spread is sag.
Storms can rip away random parts from a roof and render interiors vulnerable to wind water and the further spread of malignant toxic fungi.
Classification of a building class is based on two factors.
Roof spread occurs when the principal rafters of the roof are not adequately supported causing them to open in a scissor like pattern.
Since the rafters are fixed to timber wall plates sitting on the head of the masonry wall then roof spread pushed out those wall plates in the process pushing out the masonry below.
Roof spread affects a roof that begins to move after it is installed.