Replacement Flat Roof Insulation

Flat roofs are hard to replace.

Replacement flat roof insulation.

Some types of flat roofing material like metal also require insulation to help deaden the sound. Rubber roofing commonly comes in a roll or sheet often referred to as a membrane. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. This could mean flat roofs may not raise the same red flags they used to.

What is the best flat roof or roof material for flat roof replacement. Metal is one of the most popular materials used for flat roof replacement. Since 2005 if you replace 25 or more of your roof covering felt then you need to ensure that the entire flat roof has enough insulation to satisfy current building regulations. Perlite insulation is composed of perlite combined with organic fibres and binders.

The current target u value for new or replacement flat roofs should be 0 18w m k. Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. The current building regulations with respect to u values for flat roof insulation was updated in 2010 following on from the 2006 implemented changes to building regulations approved document l conservation of fuel and power. This is a question i get asked a lot and to be honest there isn t a right or wrong answer but there is sometimes a type of flat roof that would suit a flat roof of a particular size shape detail level or budget.

I live in a 55 condo self managed. Generally a rigid insulation board should be used as part of the roofing construction and may be applied over or under the roofing deck. A typical flat roof repair costs at least 350 400 and involves locating sources of leaks and patching the seams or holes. Like wood fibre it has a thermal resistance value of 2 78.

On average you ll spend about 7 500 for 1 500 square feet with a range of 6 000 to 18 000 due to the complexity of the installation type and thickness of insulation roof pitch location accessibility and old roof removal costs can exceed 24 000. It has 120 units and 5 floors. Can half a roof replacement be done and the other half in a few years or must the entire roof be done at one time due to new insulation mandated by the code. Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down.

This only applies to flat roofs over habitable parts of your home so it excludes garages sheds some porches and most door canopies. However depending on the severity of the damage and the type of material installed repairing a flat roof can cost as much as 600 800. Pvc membranes are easy to maintain and repair. I have been told once the building needs a new flat roof that we must add 5 of insulation now.

Many homeowners also prefer to use a type of insulation to help improve energy usage on the roof. The insulation board is treated with an asphalt coating to limit asphalt absorption into the insulation. Air cells are trapped within the perlite which provides the insulation for your flat roof.