Frequently asked questions about the Bitumen roofing materials category
What are bitumen roofing materials and which roofs are they suitable for?
Bitumen roofing materials are rolls, membranes, modified bitumen sheets, shingles and sealants used for waterproofing, repair and finishing. Suitable for flat and pitched roofs: rolls for waterproofing, SBS/APP modified sheets for enhanced durability, and bitumen shingles for decorative top layers.
How do bitumen rolls differ from modified bitumen sheets?
Bitumen rolls combine bitumen and a reinforcement (polyester or fiberglass) for basic waterproofing. Modified bitumen sheets (SBS, APP) contain polymers that increase elasticity and weather resistance, making them better for long-life and demanding roof systems.
What sizes and formats of bitumen sheets and corrugated panels are available?
The range includes Corrubit corrugated sheets sized 930x2000 mm and shingle modules supplied as 3 m² packs or 20-piece packs. Roofing felts commonly come in 10 m² rolls; exact dimensions are listed on each product page.
Is the CORRUBIT corrugated sheet suitable for fixing to battens and what fasteners are required?
The CORRUBIT corrugated sheet (930x2000 mm) is designed to be fixed to battens and is fastened using roofing screws with sealing washers. Use the recommended roofing screws or nails listed in the product details for secure installation.
Which bitumen shingles are available and how to choose between ROCK HEXAGONAL and ROCK HARJA/RÄSTA?
Available products include ROCK HEXAGONAL modules (3 m²) and ROCK HARJA/RÄSTA packs (20 pcs) used for ridge and eave elements. Choose HEXAGONAL for uniform coverage and HARJA/RÄSTA for decorative/functional ridge and verge finishing.
What ancillary materials are included in the category: primers, mastics, nails for bitumen sheets?
The category includes primers for substrate preparation, bitumen mastics and adhesives for joints and repairs, plus specialised roofing nails and screws for bitumen corrugated sheets and shingles. Exact items and pack sizes are listed on product pages.
Can UNIFLEX EPP roofing felt be used on a low-sloped roof?
UNIFLEX EPP (example: 4.0 kg 10 m²) can be used for waterproofing on low-sloped roofs with proper substrate preparation and careful jointing. For very low or trafficked roofs, modified bitumen systems are usually recommended; check the product page for slope requirements.
Which material is better for repairing a leaking roof: roll or sheet?
For local repairs, a roofing felt roll or a mastic sealant is often sufficient. For major repairs or when higher flexibility and strength are required, choose a modified bitumen sheet (SBS/APP) and use a primer and mastic as part of the system.
Which thickness and weight parameters matter when choosing a bitumen roll?
Look at bitumen mass per m² (commonly 3.5–5.0 kg for popular rolls), the sheet thickness and reinforcement type (polyester/fibreglass). Higher bitumen content and stronger reinforcement increase durability and load resistance.
Can different types of bitumen materials (roll, Corrubit, shingle) be combined on one roof?
Yes — rolls and modified sheets are commonly used for waterproofing, with Corrubit panels or bitumen shingles as the top layer. Ensure layer compatibility and follow primer and adhesive recommendations on the product pages.