The slates are 9 years old and had a build up of moss algae compounded by tree sap.
Slate roof build up.
Bur is preferred for low slope or flat roofs because it creates a continuous sealed surface.
If the tiles have water stains check for any hairline cracks.
Built up roofing also called bur is the most common roofing material used on low slope roofs.
General guidance on the most important points to be considered is given below.
Effective design of a slate roof must take into account a number of inter related factors including site exposure the pitch of the roof the type of slate selected and the slate lap.
Run a string up the edges of the roof to give yourself a straight edge to follow when laying the slate tie the string to temporary nails or chalk lines up the roof edge to align the inside edge of the slate in order to.
It is composed of alternating layers of reinforcing fabric and bitumen asphalt and is finished with a top layer of aggregate such as stone or gravel.
Slating terms and phrases if you are not a seasoned roofer some of the terms used for slates batten spacing or.
The function of a slate roof is to provide shelter shed rain and snow and resist wind and other loads.
Take a flashlight and check for water stains on the roof timbers especially after a long period of rain.
The slates that run up the side of the roof should extend beyond the gable ends one full inch.
This is achieved with simple and adaptable methods of installation that have proved successful for centuries around the world.
Slates should overlap by at least three inches on the sides called sidelap.
Some roofs have been up for nearly a century and while the stone is still effective damage is possible.
Even more important is the overlap at the top of each slate called headlap.
How to install a slate roof the details roof pitch the angle of a roof not only determines what slates to use but the amount of overlap that the slate.
Slate roof well that s a tricky question.
Slates on the rest of the roof.
In many cases local requirements or necessity lead to the development of slating styles that suit or benefit from the regional supply of material.
The photo above shows a slate roof during a cleaning.
How to slate a roof http www fixmyroof co uk videos and guides pitched roof slate a roof this video shows you the basics of how to set out a roof for slat.
If your roof is steep with a pitch of.
First it depends what you re trying to clean off of your slate roof.
Full application and sitework details are given on pages 8 to 22.
You can also do a fair amount of checking at ground level.
And second it depends how much time and effort you want to put in.
