- HEP Roofing
- Flat-roof Membranes

Flat-roof Membranes
Flat-roof Membranes | Roofing | Kelso
Discover how HEP’s flat-roof membranes deliver a watertight seal that stands up to the Borders’ changing skies. Our skilled team in Kelso installs advanced single-ply systems that flex with your building, resist UV damage, and shrug off ponding water—so you can forget about costly call-outs and focus on what happens beneath the roof. Every project is surveyed, specified and fitted by our own craftsmen, giving you the confidence that your roofing solution is built to last.
Whether you need a pristine finish for a contemporary extension or a rapid upgrade for an ageing commercial block, we tailor materials, insulation and detailing to match your budget and energy goals. Join homeowners, architects and facility managers across Kelso who already trust HEP for durability, speed and a friendly, no-nonsense service—then relax while your new flat roof quietly does its job for decades to come.
FAQs
What types of flat-roof membranes do you install in Kelso?
We supply and fit three main membrane systems—EPDM (rubber), PVC single-ply, and GRP (fibreglass). Each is cold-applied, meaning no hot torches are required, which is safer for your property. EPDM is a seamless sheet that is fully adhered to the deck, PVC is hot-air welded at the seams for extra strength, and GRP is built up in liquid layers to create a rigid, joint-free surface.
How long can I expect a membrane roof to last in the Scottish Borders climate?
With proper installation and routine maintenance, EPDM and PVC membranes typically last 25–30 years, while GRP can exceed 30 years. Kelso’s moderate rainfall and occasional hard frosts make good drainage and UV resistance important; all three systems we install are designed to withstand those local conditions.
What are the key advantages of EPDM, PVC, and GRP membranes?
EPDM: Highly flexible and resistant to UV and thermal movement, ideal for roofs with multiple penetrations. PVC: Heat-welded seams create an exceptionally strong, watertight bond, and the material is resistant to chemicals and root growth—useful if you plan a green roof. GRP: Forms a rigid, traffic-able surface that can be finished in a colour of your choice and easily repaired by adding new resin to the damaged area.
Do you provide warranties and ongoing maintenance services?
Yes. All our membrane systems come with a manufacturer-backed warranty ranging from 15 to 25 years, depending on the product. We also offer an optional annual maintenance package that includes a roof inspection, gutter clean, and minor remedial work—helping you catch issues early and keep your warranty valid.
How disruptive is the installation process?
Most domestic projects are completed within one to three days. Because the membranes are cold-applied, there is no open-flame work and minimal odour. We schedule deliveries in advance, use portable waste chutes to protect your garden, and aim to keep noise to a minimum. You can usually remain in your home throughout the works.
Can a new membrane be fitted over my existing felt roof?
Often, yes. If the existing deck is structurally sound and the insulation meets current building regulations, we can overlay with a new membrane—saving time, reducing waste, and lowering the overall cost. We carry out a moisture scan before deciding; if water has penetrated the deck, a full strip-off and replacement will be recommended to ensure long-term performance.