Retrofit Flat Roof Insulation

Our insulation for existing flat roofs is ideal for extensions dormer roofs and includes a layer of either 25 50 75 or 100mm insulation board.

Retrofit flat roof insulation.

This is then covered with a further weatherproofing layer. We go right over the existing shingles. Dry in the roof with peel and stick membrane install two layers of insulation to the roof staggering the seams. I d like to add insulation to this truss space.

Remove the existing roofing membrane and inspect the roof for any deficiencies. How to retrofit a roof with insulation in my humble opinion i believe the only way to effectively and cost wise to solve the problem is to insulate from the top. Of your email interested please feel free to contact us on facebook at cp millworks business page. This better insulated and ventilated cavity will greatly reduce heat gain or loss through the roof.

With a flat roof however this becomes a major concern. Different types of roofing insulation exist including blanket insulation blown insulation and rigid insulation. We have done many roof retrofits with a structural insulated panel nail base panel. Cover the roof with 6mil poly sealed at the wall line to the vb in the wall.

Concrete flat roof insulation though a very convenient form of construction even the development of better roofing technologies has not prevented flat roofing from continuing to be prone to traditional defects such as leakage component decay and in the more extreme cases structural failure. The type that is right for your flat roof insulation job depends upon the state of the roof expert opinion on the best type and your budget. Flat roof insulation by using our method of fitting insulation on the outside of the flat roof above the main decking boards but below the waterproofing layer we are able to protect the deck boards joists and ceiling from variations in the outside temperature. To produce a hot roof rigid insulation is fitted outside above the weatherproofing.

This benefit alone many times allows the metal retrofit roof system to pay for itself within 10 to 15 years. The first order of business to to strip the roof. Cold roof a very bad idea. Retrofit an existing flat roof to improve thermal water and air control performance as follows.

The house has a flat epdm roof open chord roof trusses no ventilation and r 30 fiberglass batts with dubious installation quality wiring interrupts can lights swamp cooler ducts. Cold roof systems are highly inadvisable as insulation from the inside will inevitably lead to the formation of condensation. The use of metal retrofit roofs allows the flat roofed buildings to undergo a transformation into a sloped roof building. The panel adds a remarkable amount of structure as well as insulation to the project.

See http solaralberta ca pdfs harold 20orr pdf we have done several roofs this way 1.