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The roofing membranes represent an auxiliary waterproofing layer when used with shingles, tiles or asphalt patterns (they are necessary mainly on the low pitch roofs) or they can be used as the primary hydro-insulating layer on the flat roofs.
The optimum vapour diffusion is ensured by the system of diagonal channels, provided with an anti-adhesive finish.
The roofing membranes are laid directly on the thermal insulation (rockwool, polystyrene), on the sheething or they can be simply hung and bonded on the roof framing members.
Roofing membranes tretaed with the micro-perforation
Those membranes where the vapour diffusion effect is ensured by the micro-perforation of the membrane(micro-holes all over the surface) cannot be laid onto the thermal insulation directly.
Standardly the microscopic holes allow the vapours (water in the form of the gas) diffuse through the material and on the other hand, the membrane stops all fluids from leaking in...
The healthy insulation
Yes, I am not joking.
There are PUR insulation systems (e.g. BioBase 501 from
BioBased), available on the market, based on natural soybean oil.
They act very much like the expensive petroleum based foams, can expand up to 100 times compared to its original size and whatīs most important, they are environment friendly products.
Soy foam insulation advantages
- environmentally friendly;
- resistant against rodents or insects;
- 4 inch layer as efficient as 6 inches of fiberglass batt;
- soy PUR insulation installation is simple (DIY) just like any other polyurethane foam installation;
- 20+ years lifespan;
- class 1-rated fireproof material....
Insulation made from recycled paper
You sure know that (todayīs) cellulose insulation is made from old, recycled paper and you may ask yourself how does it actually work.
Can paper be used as an insulation material?
That paper that sets on fire by a single spark or make soggy by a single drop of the water?
Cellulose insulation manufacturing
The old paper is first decomposed to the cellulose fibres, the finer the fibres are the better.
Fiber insulation quality, in general, depends on how the fibres can encapsulate the air (the main insulation medium in this case).
[SHOP1]
Actually, the material has better insulation properties if it has fine and long fibres which, after application, form firm material (no matter if we talk about blown in cellulose insulation or the cellulose fibre batts) with some air captured within.
The air should not move (moving the air means exchanging the warmth) from one part of the insulation t...
The asphalt shingles (just like any other shingles) do not provide perfect water insulation when used on low-slope roofs. To chieve the 100% waterproof solution. The waterproofing membranes should be used prior to laying the shingles.
Waterproofing bitumenous membranes
The most frequently used are the hot bituminous sheets and the self adhesive waterproofing sheets. Both (either one or the other) must be used (or at least should be considered) in following cases:
- if the asphalt shingles are used on roofs with slope which is lower than the minimum slope recommended by the shingles manufacturer;
- in the places where we can expect that the rain water or snow will accumulate;
- in all rain-rich or snow-rich geographic locations.
The asphalt shingles are then applied right on the waterproofing membrane. The hot asphalt membranes must be heated first to the working temperature, usually 150 - 180 Celsius degrees, the self adhesive materials do n...
XPS belongs to styrofoam insulation materials but it is manufactured using different technology as the expanded polystyrene (EPS). By the XPS manufacturing, the polystyrene is extruded (under pressure) to the spevial tunnel (extrudor).
XPS vs EPS difference
Which leads us to the most important difference between these two insulation styrofoams and it is that the extruded polystyrene insulation (XPS) cellular structure is closed. Therefor the XPS doesnīt absorb water, itīs capilarity is very low and also itīs thermal conductivity is much lower than of EPS. Based on the above properties of extruded polystyrene, it is mostly used when constructing the roofs with the reverse order of insulation layers.
Advantages of extruded polystyrene foam
- has no impact on peopleīs health; - extruded polystyrene insulation installation is very easy; - can be molded or any other way shaped; - waterproof and resistant against all in water dissolvable stuff.
