Laying ruberoid on the roof with a burner: technology, mistakes and secrets of masters

Ruberoid roofing remains one of the most popular solutions for garages, outbuildings and even residential buildings with a flat or low-sloping roof. Despite the advent of modern membranes and bitumen materials, burner-fused ruberoid appreciated for the availability, ease of installation and reliability when properly laid. However, working with open fire and molten bitumen requires not only skill, but also knowledge of nuances: from the choice of the brand of material to the technique of uniform heating.

This article is not just a guide, but A collection of practical advice from roofers with 10 years of experience. We will understand how to avoid bubbles and detachments, why you can not save on a gas cylinder, and what to do if the ruberoid “swimmed” in the sun. And you'll know which ones Errors lead to leaks within a year. How to prevent them during the preparation stage.

1. The choice of ruberoid: what material is suitable for melting

Not every ruberoid can be glued with a burner. For the floating technology suitable only bitumen-polymer materials with an index "P" or "K" (e.g., RCP-350, RPP-300, TechnoNICOL). Ordinary parchamine or ruberoid brand "RKK" without polymer additives when heated with a burner will simply burn, not having time to stick.

Key parameters in the selection:

• 🔹 Ground: glass canvas (the most durable) or cardboard (cheaper, but less durable). It's perfect for the garage. RPP-300 on glass canvas.
• 🔥 Melting point: should not be lower than 160–180°C. Materials with melting point 120°C (e.g. certain types of Bicrost) require caution, they are easily overheated.
• 📏 Thickness: for single-layer stacking, 3-4 mmAnd for the two-layered, 2.5 mm (bottom layer) + 4-5 mm (top)
• ☀️ UV resistanceThe upper layer should have a mineral sprinkle (sand, slate) - it protects from sunlight.

Producers that are trustworthy:

• 🏭 TechnoNICOL series Uniflex, Bikrost, Linkrost. It is optimal for the middle of Russia.
• 🏭 Icopal - Finnish brand with high frost resistance (suitable for Siberia).
• 🏭 aquaisol Budget option for temporary roofing.

⚠️ Attention: Do not buy Ruberoid without labeling or with an expired expiration date (usually 1 year from the date of manufacture). Old bitumen loses elasticity and crumbles when heated.

2. Tools and equipment: what you need for work

For laying ruberoid burner will be required specialized toolkit. Savings on equipment often result in injuries or a job breakdown. Here's the full list:

Tool.	Appointment	Recommendations for selection
Gas burner	Heating the ruberoid bitumen layer	Power 1.5-2 kW,nozzle 30-50 mm. Optimal models Kovea KH-2003 or Svarog.
Gas cylinder	Burner fuel (propane/butane)	Volume. 27-50 l. Never use household stove cylinders – they are not designed for high gas consumption!
gearbox	Gas pressure adjustment	With a gauge, flow rate 0.8–1.2 m3/h.
roller	Rolling ruberoid to remove air	Weight. 50-80 kg (Maybe a homemade pipe with sand).
Roofing knife	Cutting the ruberoid	With a hooked blade (e.g., Olfa L-1).

Additional material:

• 🧴 Bitumen mastic - for smearing joints and edges (for example, TechnoNICOL No. 24).
• 🧲 metal brush - rust removal of the base.
• 🔧 Spaler - to remove the old coating.
• 🧤 Heatproof gloves - I will! Normal fabrics will not protect against bitumen splashes.

⚠️ Attention: Before work, check the burner for gas leakage: apply a soap solution to the connections. If bubbles appear, You can't use it!

3. Roof Preparation: How to Avoid Blisters and Bubbles

Quality of stowage 80% It depends on the preparation of the base. Even the most expensive ruberoid will peel off if the roof is not cleaned or has irregularities. The preparation algorithm:

1. Removal of old coating. Remove all old ruberoid, mastic or paint. Use a spatula or a Bulgarian with a metal brush. ExceptionIf the old coating is held tight and not swelled, you can lay a new layer on top of it (but only after primer!).
2. Surface alignment. Make cracks with cement-sand mixture (for concrete roofs) or bitumen mastic (for metal). The height difference shall not exceed 5 mm.
3. Cleaning up garbage and dust. Walk through an industrial vacuum cleaner or broomstick. Dust is interfering with bitumen adhesion!
4. The grounder. Apply a primer (e.g., TechnoNICOL No. 01) roller or brush. This improves the adhesion of the ruberoid to the base. Expenditure. 0.3–0.5 l/m2.

Pay special attention sloping and sinkhole:

• 📉 On the rooftops with a slope 5° Place the ruberoid perpendicular to the ray.
• 📈 In the gradient 5–15° - parallel.
• 💧 Around the funnels, make an extra layer of mastic width 30-50 cm.

Remove old coating |Low surface (displacements ≤5 mm) |Clean from dust and debris |Put primer (primer) |Check slopes and funnels->

4. Technology of laying ruberoid burner: step-by-step instructions

Now we move on to the most important stage - melting. Work better in dry windless weather at temperature +5…+25°C. Primary below 0°C The scalp becomes fragile, and above 30°C - too fluid.

Procedure:

1. Unlock the ruberoid. Roll out the roll on the roof and measure the desired length with a margin. 10–15 cm For the fly. Cut it off with a knife.
2. Warming the base. Turn on the burner and warm up the concrete or metal roof to 50–60°C (Check with your hand, it should be hot, but not burn.) This will remove the residual moisture.
3. Floating the first sheet.
   • Roll the ruberoid from both sides to the center (like a book).
   • Warm up with a burner underside of ruberoid and base of roof simultaneously. Keep the burner at a distance. 15–20 cm, move the circular motions.
   • As the bitumen melts (a shiny surface will appear), roll the ruberoid with a roller or foot (in heat-resistant shoes!).

Docking sheets. The swirl between the sheets. 8-10 cm. Warm up the edge of the previous sheet and a new overhang, then press it with a roller.

Roll-in. Walk all over the sheet with a heavy roller, squeezing air from the center to the edges.

Video instructions for laying:

🎥 (Insert the YouTube player code here, for example: how to properly burn and roll out a ruberoid.)

⚠️ Attention: Don't overheat the ruberoid! If the smog is smoldering or smoldering, reduce the flames. The optimal melting point is when the bitumen becomes liquid but does not burn.

5. Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that shorten the life of the roof. Here. TOP-5 misses And how to prevent them:

Mistake.	Effects of consequences	How to avoid
Uneven warming	Detachment of ruberoid after 1-2 seasons	Move the burner. circularlyNot along the leaf.
Too much overhead (>15 cm)	Moisture buildup under joints, rotting	The optimal cover. 8-10 cm.
Work in sludge or fog	Moisture under ruberoid → bubbles and leaks	Only put it in. dry-weather!
Use of domestic gas (propane for plates)	Low flame temperature → Ruberoid will not stick	Use it. propane/butane ballooned 27-50 l.
No roller rolling	Residual air → swelling	Roll every leaf. 2-3 times.

Another common problem is that ruberoid after stacking. Reasons:

• 🌡️ Overheating of bitumen (it became too liquid).
• 🚶 Uneven rolling (one edge stuck before the other).
• 💨 Work in the wind (ruberoid "walks" before gluing).

Solution: if the waves appeared, warm up the problem area with a burner and crush it with a roller. If it doesn't help, I'll have to redo it..

What to do if the ruberoid is already swelling?

If the bubbles appeared after laying, gently puncture them with a knife, squeeze out the air and pour inside a bitumen mastic. Then warm up with a burner and press the load (for example, a bag of sand) for 12-24 hours.

6. Roof care: how to extend the service life

Average service life of ruberoid roofing - 8-15 yearsBut with proper care, it can be increased to 20 years. Basic rules:

• 🧹 Cleaning 2 times a year: Remove foliage, branches and debris. They keep the moisture and cause rotting.
• ❄️ Winter care: Don’t break the ice with a crowbar – use it. shovel. Metal will damage the protective layer.
• 🔧 Minor damage repairs:
  • Cracks <5cm - pour some bitumen mastic.
  • Separate - warm up with a burner and press with a roller.
  • Hole – stick a patch of the same ruberoid with flyover 10cm.
• 🎨 Update of coverage: every 3-5 years top-up rubber or mastics (e.g., TechnoNICOL No. 33).

If the roof starts to leak, check:

1. The joints of the sheets - often water seeps out there.
2. Places of adjoining pipes and funnels.
3. Ruberoid edges – if they are not fixed by a mastic, the wind can bend them away.

7. Alternative methods of laying ruberoid

The burner is not the only way to install. In some cases, it is advisable to use other methods:

Method	When to apply	Pluses	Cons
To the cold mastic.	For small repairs or vertical surfaces	Safe, no equipment required	Less grip strength
Self-adhesive ruberoid	For temporary roofing or complex shapes	Quick, no burner.	Expensive, tenure 5-7 years
Mechanical fastening (nails/screws)	For wooden roofs or windy regions	Reliable fixation	Risk of leakage at anchorages

Cold stowage is suitable for:

• 🏠 Balconies and loggias.
• 🚗 Temporary repairs to the garage roof.
• 🌨️ Work in the cold (burning with a burner) -10°C You can't use it!

Cold stowage technology:

1. Put it on the base. bitumen-primer.
2. Cover the roof with a layer. squirt (e.g., TechnoNICOL No. 27).
3. Lay the ruberoid and roll the roller.

FAQ: Answers to Frequent Questions

❓ Can I glue a ruberoid on a ruberoid without removing the old layer?

Yes, but only if the old cover:

• 🔹 It's not swelling or peeling off.
• 🔹 It doesn't have deep cracks.
• 🔹 Dry and clean.

Before laying the new layer necessarily Soak up the old coating with a bitumen primer.

❓ How many layers of ruberoid do you need for a garage?

Optimally. 2 layers:

• 🔹 Lower: ruberoid without sprinkling (for example, RPP-300).
• 🔹 Top: with stone chips (e.g., RCP-350).

For regions with severe frosts (<)-30°C) better than 3 layers.

❓ What is the gas flow per 1 m2 of ruberoid?

Approximate propane flow rate 0.1-0.15 l/m2. On the roof of the garage. 20 m2 will require:

• 🔹 balloon 27 l l - Enough. 180–270 m2.
• 🔹 balloon 50 l. - on 330-500 m2.

The consumption depends on the power of the burner and air temperature.

❓ What is the difference between a ruberoid and a bicrost?

bicrosth - This is a modern variety of ruberoid with improved characteristics:

• 🔹 The base is glass canvas or polyester (more durable than cardboard).
• 🔹 Bitumen is modified by polymers (more elastic).
• 🔹 The service life 10-15 years against 5–8 in a normal ruberoid.

It's good for the garage. Bicrost of HPP (bottom layer) + Bicrost CCP (top)

❓ Can I walk on a freshly laid ruberoid?

You can, but with caution:

• 👟 Wear shoes with soft-sole (cages, roofing shoes)
• ⏳ Only walk after you have completely cooled down. 1-2 hours).
• 🚫 Avoid sudden movements – the bitumen is still plastic!