Rigid roof insulation board.
Roof overlay board.
1 4 dens deck roof board.
One major advantage of doing an overlay versus a tear off is the amount of labor involved.
R values 28 tested in accordance with astm c518 spannings.
Installing wood stripping under a tin roof.
A flat roof that had been over coated with a liquid based system which itself is breaking down a bonded overlay would not be suitable although with some preparatory works a mechanically fastened overlay system might be an option.
1 4 spans flute widths up to 2 5 8 flexural strengths parallel lbs.
This is because you get to skip the whole process of tearing up the existing roof.
Labor for a new roof overlay.
Count on iko for the best in asphaltic cover boards.
The roofing is manufactured in panels that.
That process can be time consuming and messy so.
Ideal for re roof applications or as a new substrate for a modified bitumen or bur roofing membrane asphaltic cover boards are dimensionally stable providing strength and durability.
It s for this reason that many people choose to go with an overlay roof rather than a full tear off.
Insulation joint tape section of this manual.
Less expensive since you re simply adding another layer of shingles on top of the old roof your labor costs will be considerably.
That is to say that laying down a new roof on top of the existing roof saves hours of labor.
Asphalt and paraffin impregnated coated fibreboard roof insulation and insulation overlay board.
The additional price is mostly related to the extra labor that goes into a tear off roof.
Under construction proprietary overlay.
Tin roofing also known as metal roofing is considered more durable than composition or wood shingles.