Quick Answer: Can You Put Torch On Felt Over Old Felt?

Can you put felt on top of felt?

When felting over any old felt you can use a bitten primer to get a proper fix, some felts are also a 3 layer system allowing them to go over old felt, however if he has quoted for old felt to be removed then that is what he should have done.

Any old felt roof needs to be completely taken up and re boarded..

Can I use roofing felt as house wrap?

House wrap and felt paper, when properly installed and undamaged, are both weather resistant barriers (WRB) that create permeable and water- and air-resistant exterior walls. The main advantage of house wrap, over felt paper, is the superior strength and durability of house wrap.

What is the best adhesive for roof felt?

EVERBUILD BLACKJACK 904 Bitumen Roof Felt Adhesive is the ultimate cold applied, bitumen-based adhesive used to bond roofing felt to most surfaces metal, concrete, timber and more. It provides an incredible high bond strength which delivers a tough but flexible film that hardens and softens with changing temperatures.

What is the best shed felt?

5 Best Shed Roofing FeltsOur Pick. Chesterfelt Green Mineral Premium Grade Shed Felt.Best Alternative. IKO Shed Felt.Felt Shingles Roofing Tiles.Ashbrook Roofing Super Grade Polyester Reinforced Shed.Rose Roofing Green Heavy Duty Shed Roofing Felt.

Can you lay torch on felt in the rain?

alan333. You can lay torch-on felt in any outside temperature. Make sure the felt itself and the surface is dry tho – so don’t lay it in the rain. You can force dry the roof with your gas torch if you get caught out by a shower.

Do you need underlay for torch on felt?

The torch-on felt solution relies on a three-layer system, which will require two levels of underlay underneath the cap sheet.

Should I remove old shed felt?

Leaving the old felt on does not make the roof work or last any different. Sometimes theres no reason to remove the old felt. You can tell the decking is bad when you walk on the roof deck during tear off. If the felt is laying flat leave it on.

What happens if roofing felt gets wet?

Everything in Moderation. Roofing felt can get wet and still maintain its integrity, as long as it is not exposed to the elements for more than a few days. It will break down in sunlight and with large amounts of ongoing moisture. … If the felt is still wet, it may rip when shingles are installed.

Can you nail torch on felt?

If you live in a particularly exposed location for wind or your shed roof is of an unusual design or pitch, you could consider fully bonding the Torch on cap sheet to the surface of the wood with shed felt adhesive as well as using nails.

How long does torch felt last?

between 15 and 25 yearsThough torch-on felt roofing is not the cheapest option available, the long-term value it offers makes it a smart, cost effective solution that requires little maintenance. Torch-on felt roofing can last anywhere between 15 and 25 years, depending on whether it’s a 2 or 3-layer system.

Should I use 15 or 30 pound felt?

While #15 is a good option for most roofing jobs, #30 provides more protection and performance for steep roofs and flat roofs. If your roof does not have a steep pitch, you can use #15. This weight of felt is a good economic choice if you have a standard roof.

How often should a felt roof be replaced?

Felt is a traditionally used material on many flat roofs. It is strong and durable, with an expected lifespan in excess of 30 years. However, to make them last as long as possible you must take care of them and be mindful of signs of potential damage.

Can you felt over GRP?

The short answer is no. Although there are many advantages to using GRP on your flat roof, some traditionalists still opt for felt systems over the new fibreglass system.

Can you torch on felt in the rain?

Torch on felt roofing has become known for its long lasting durability. This kind of roofing is not effected by UV rays or hot sunlight and equally protects against wind and rain. It is durable so falling twigs, debris or branches do not run the risk of piercing its surface.

Can you roof over wet plywood?

A: It is never a good idea to install a roof over wet plywood or any type of roof sheathing. … Installing shingles over wet decking also will void any warranty you might have from the shingle manufacturer. Most roofs’ rafters are set 2 feet apart and the plywood decking should be a minimum of 7/16 of an inch thick.

Can I lay roof felt over old?

It’s best to tear down to the bare roof deck so you can also check for any decking damage. But you can also add another layer of felt on top of existing. This will add additional thickness to the roof, so be sure that fasteners (nails) are long enough to penetrate both layers.

Does roofing felt keep water out?

Roof felt gives your roof a better appearance and will help it last longer. The felt helps ensure water drains off the roof after a storm. It helps keep your roof free from moisture, which can lead to leaks, rot, and mold. The felt also serves as a protective membrane against ice or snow dams.

How much does it cost to re felt a roof?

Flat roof replacement costs Felt typically costs around £50 per square meter whereas more high-end materials such as fibreglass usually come in at just under £100 but they provide more aesthetic options. Depending on your location, labour costs typically cost around £150 to £250 per day per worker.

How long does shed roof felt last?

5 yearsMost standard / premium shed felt is designed with a life expectancy of 5 years in mind.

Does shed felt need adhesive?

When felting a roof shed, you will need enough felt to cover the roof as well as felt adhesive and plenty of galvanised clout nails In addition, you will need a claw hammer, a pry bar, a brush for the adhesive, a knife with a hooked blade, and a spade if you are removing heat-bonded felt.