To do torch down roofing, you heat up tar with a special torch and then roll it onto your roof. This method is quick and makes a strong seal. Torch down roofing, also called built-up roofing or BUR, has been used for many years. According to industry data, built-up roofing lasts 15 to 30 years when done right. It works best on flat or low-slope roofs. Many contractors still use this method today.
What Do You Need to Start?
You need a propane torch, tar, roofing felt, and a roller tool. The torch heats the tar to a sticky liquid. You also need safety gear like gloves, boots, and eye protection.
The materials cost varies. According to RubyHome, roof installation costs range from $4 to $40 per square foot. For a 1,700 square foot roof, costs can go from $6,800 to $68,000. Torch down roofing is less expensive than some options.
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How Do You Install Torch Down Roofing?
First, prepare your roof by cleaning it and adding a base layer. Then heat the torch and start at the lowest point.
Roll the roofing felt out slowly as you move the torch across it. The heat melts the tar on the back. Keep the flame moving so you do not burn the felt. Work in rows from bottom to top. Each row should overlap the one below it by a few inches. This stops water from getting under the seams.
What Are Common Mistakes to Avoid?
Do not hold the torch in one spot too long. You will burn the material and make weak spots. Move the torch in smooth, steady motions.
Do not skip the overlaps between rows. Water will find any gap and leak inside. Make sure each row covers the top of the row below by at least 6 inches. According to ConsumerAffairs, 40% of roofing complaints involve leaks. Good overlaps help prevent these problems.
How Long Does It Last?
Torch down roofing typically lasts 20 to 30 years. According to industry data from our sources, the average roof lifespan ranges from 25 to 50 years. Proper maintenance helps it last longer. Keep gutters clean and check for damage after storms. According to ConsumerAffairs, 22% of roofing replacements come from storm damage. Quick repairs prevent bigger problems.
| Step | What to Do |
|---|---|
| 1. Prep | Clean the roof surface |
| 2. Base | Apply first layer of felt |
| 3. Heat | Warm tar with torch |
| 4. Roll | Roll felt while heating |
| 5. Overlap | Cover seams with 6 inches |
| 6. Repeat | Add more rows going up |
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Work with a professional roofing company to protect your property with quality roofing solutions.