Flat Roofing for Domestic Properties
Domestic Flat Roofing Refurbishment / Replacement & New build projects.
Installing Roof Technology affordable and advanced single ply flat roofing products, will give you the peace of mind that your new flat roof has a life expectancy of up to 50 years *
If you’re replacing or refurbishing your domestic flat roof you won’t pay VAT if insulation is installed.
There are two Processes that can be used cover an existing flat roof – how we do this is described below.
Domestic Flat Roof Refurbishment
Roof Technology advanced products enable your roof to be refurbished whilst leaving your existing roof cover in place (this is referred to as overlaying)
- Saving money on labour and waste.
- Helping the environment by reducing the amount of waste, going to Landfill.
- Reduces the risk of water ingress during installation.
How we do this
Roof Technology use mechanically fixed membranes that will fix into your existing roof deck (once the roof deck has been tested). Metal trims are then fixed to the roof perimeters. The membrane is the welded in place with hot air at 400/500 Degrees, to ensure water tightness.
The Pull-Out Test, Process
First we carry out a ‘Pull Out Test’ to determine the quality of the roof deck. Screws are put into the roof at various points. A pressure gauge is then used to pull the screw out of the deck. This will tell us if your roof deck is in good enough condition be overlaid. Once the test has been carried out, we will then fit temporary flashings to your roof to ensure that it is water tight, until we are able to come and lay our roof cover over the existing
*Depending on product used (as assed by BBA)
Fixing screwed through waterproofing into deck.
Newton meter gauge measures the pressure needed to pull fixing out of deck.
Create temporary flashing over screw penetration.
Typical Overlay Process.
(With insulation warm deck)
- Remove Chippings from roof
- Fix insulation.
- Create hard kerb.
- Fix fascia
- Fix metal perimeter detail.
- Lay separation fleece.
- Lay and fix down our membrane over lapping perimeters.
- Restrain laps & perimeters.
- Weld laps.
- Create perimeter flashings.
- Fix gutters.
- Ensure all welds are weatherproof and sealed.
Insulation Hard Kerb & vapour Barrier
Flat Roof Removal
(With insulation warm deck)
- Remove & dispose of existing roof cover
- Inspect existing roof deck.
- Lay vapour barrier
- Fix insulation.
- Create hard kerb.
- Fix fascia.
- Lay separation fleece.
- Fix perimeter detail.
- Install single ply membrane.
- Lay and fix down our membrane over lapping perimeters.
- Restrain laps & perimeters.
- Weld laps.
- Create perimeter flashings.
- Fix gutters.
- Ensure all welds are weatherproof and sealed.
Roof Deck inspected, Prepared & ready for installation
Fascia hard kerb & insulation installed
New single ply membrane installed
Flat Roof Removal
(With insulation Cold deck)
- Remove & dispose of existing roof cover
- Remove & dispose of existing roof deck
- Lay vapour barrier
- Lay insulation within the roof void.
- Counter batten rafters (if possible)
- Fix 18mm OSB roof deck
- Create ventilation, if possible
- Lay separation fleece.
- Fix perimeter detail.
- Install single ply membrane.
- Restrain laps & perimeters.
- Weld laps.
- Create perimeter flashings.
- Ensure all welds are weatherproof and sealed.
Original leaking roof
Old roof deck removed & insulation installed between the rafters
New roof deck ready to receive single ply membrane
New single ply membrane installed
New Build installation
Typical new build membrane installation
- Lay separation fleece.
- Fix perimeter detail.
- Install single ply membrane.
- Restrain laps & perimeters.
- Weld laps.
- Create perimeter flashings.
- Ensure all welds are weatherproof and sealed.
Roof deck prepared to receive single Ply Membrane
Finished surface
Finished surface
Why use single Ply Membranes
Single ply roofing offers many advantages
Long lifespan
Up to 50 years depending on product installed
UV resistance
Designed to protect the roof from the damaging effects of the sun.
Durable
Extreme high or low temperatures will not affect the waterproofing properties of the single ply membrane.
Sustainable & environmentally friendly
Tear and puncture resistance
Minimal maintenance
Simple to repair