Additional costs for grp flat roofing with longer guarantees.
Resin flat roof cost.
For fibreglass expect to pay from 90 per m2 and for fire glass bay roof from 250 per square metre.
Osb 3 timber decking.
If you want a longer guarantee then the contractor will need to install an additional coating of resin in order to warranty the roof for 30 years.
The cost of this uplifting would come out at 12 and 20 extra per square metre when compared to 20 to 25 year flat roofing system.
Lead bay roofs are even more expensive starting from 300 per m2.
It is an ideal surface to apply glass fibre laminate and allows for a smooth flat finish with.
A flat roofing system with a 40 year guarantee will consist of an extra 3 layers.
This extra layer will cost between 10 and 15 per square metre.
Flat roof prices start from 40 per m2 for felt roofs.
One of resin then csm and then finally another layer of resin.
Flat roof cost per square metre.
Why does the guarantee impact on the cost.
Sometimes two layers are installed if the intention is to use the flat roof as a terrace.
Resin and catalyst 200 00 vat tissue 30 00 vat topcoats 130 00 vat.
Material cost below you ll find a list of the materials required to replace a single garage flat roof along with prices.
Flat roof coatings will cost between 0 15 to 2 00 per square foot for materials and an additional 0 50 to 3 00 per square foot for labor as broken down in the cost per square foot section above.
Rubber roofs costs start from 80 per m2.